From 3a4c9e1b43ff67b6cf4c59da757666d6ac5ce4a0 Mon Sep 17 00:00:00 2001
From: Loic Bistuer <loic.bistuer@gmail.com>
Date: Sun, 25 Jan 2015 22:45:54 +0700
Subject: [PATCH] Cleaned up some forms tests.

Thanks Berker Peksag and Tim Graham for the reviews. Refs #24219.
---
 tests/forms_tests/tests/test_extra.py   | 844 ------------------------
 tests/forms_tests/tests/test_fields.py  | 104 ++-
 tests/forms_tests/tests/test_forms.py   |  99 ++-
 tests/forms_tests/tests/test_widgets.py | 761 ++++++++++++++++++++-
 tests/utils_tests/test_encoding.py      |  44 +-
 5 files changed, 969 insertions(+), 883 deletions(-)
 delete mode 100644 tests/forms_tests/tests/test_extra.py

diff --git a/tests/forms_tests/tests/test_extra.py b/tests/forms_tests/tests/test_extra.py
deleted file mode 100644
index ababa689de..0000000000
--- a/tests/forms_tests/tests/test_extra.py
+++ /dev/null
@@ -1,844 +0,0 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
-import datetime
-
-from django.forms import (
-    CharField, DateField, EmailField, FileField, Form, GenericIPAddressField,
-    HiddenInput, ImageField, MultipleChoiceField, MultiValueField, MultiWidget,
-    PasswordInput, SelectMultiple, SlugField, SplitDateTimeField,
-    SplitDateTimeWidget, TextInput, URLField,
-)
-from django.forms.extras import SelectDateWidget
-from django.forms.utils import ErrorList
-from django.test import TestCase, override_settings
-from django.utils import six
-from django.utils import translation
-from django.utils.dates import MONTHS_AP
-from django.utils.encoding import force_text, smart_text, python_2_unicode_compatible
-
-from .test_error_messages import AssertFormErrorsMixin
-
-
-class GetDate(Form):
-    mydate = DateField(widget=SelectDateWidget)
-
-
-class GetDateShowHiddenInitial(Form):
-    mydate = DateField(widget=SelectDateWidget, show_hidden_initial=True)
-
-
-class FormsExtraTestCase(TestCase, AssertFormErrorsMixin):
-    ###############
-    # Extra stuff #
-    ###############
-
-    # The forms library comes with some extra, higher-level Field and Widget
-    def test_selectdate(self):
-        self.maxDiff = None
-        w = SelectDateWidget(years=('2007', '2008', '2009', '2010', '2011', '2012', '2013', '2014', '2015', '2016'))
-
-        # Rendering the default state.
-        self.assertHTMLEqual(w.render('mydate', ''), """<select name="mydate_month" id="id_mydate_month">
-<option value="0">---</option>
-<option value="1">January</option>
-<option value="2">February</option>
-<option value="3">March</option>
-<option value="4">April</option>
-<option value="5">May</option>
-<option value="6">June</option>
-<option value="7">July</option>
-<option value="8">August</option>
-<option value="9">September</option>
-<option value="10">October</option>
-<option value="11">November</option>
-<option value="12">December</option>
-</select>
-
-<select name="mydate_day" id="id_mydate_day">
-<option value="0">---</option>
-<option value="1">1</option>
-<option value="2">2</option>
-<option value="3">3</option>
-<option value="4">4</option>
-<option value="5">5</option>
-<option value="6">6</option>
-<option value="7">7</option>
-<option value="8">8</option>
-<option value="9">9</option>
-<option value="10">10</option>
-<option value="11">11</option>
-<option value="12">12</option>
-<option value="13">13</option>
-<option value="14">14</option>
-<option value="15">15</option>
-<option value="16">16</option>
-<option value="17">17</option>
-<option value="18">18</option>
-<option value="19">19</option>
-<option value="20">20</option>
-<option value="21">21</option>
-<option value="22">22</option>
-<option value="23">23</option>
-<option value="24">24</option>
-<option value="25">25</option>
-<option value="26">26</option>
-<option value="27">27</option>
-<option value="28">28</option>
-<option value="29">29</option>
-<option value="30">30</option>
-<option value="31">31</option>
-</select>
-
-<select name="mydate_year" id="id_mydate_year">
-<option value="0">---</option>
-<option value="2007">2007</option>
-<option value="2008">2008</option>
-<option value="2009">2009</option>
-<option value="2010">2010</option>
-<option value="2011">2011</option>
-<option value="2012">2012</option>
-<option value="2013">2013</option>
-<option value="2014">2014</option>
-<option value="2015">2015</option>
-<option value="2016">2016</option>
-</select>""")
-
-        # Rendering the None or '' values should yield the same output.
-        self.assertHTMLEqual(w.render('mydate', None), w.render('mydate', ''))
-
-        # Rendering a string value.
-        self.assertHTMLEqual(w.render('mydate', '2010-04-15'), """<select name="mydate_month" id="id_mydate_month">
-<option value="0">---</option>
-<option value="1">January</option>
-<option value="2">February</option>
-<option value="3">March</option>
-<option value="4" selected="selected">April</option>
-<option value="5">May</option>
-<option value="6">June</option>
-<option value="7">July</option>
-<option value="8">August</option>
-<option value="9">September</option>
-<option value="10">October</option>
-<option value="11">November</option>
-<option value="12">December</option>
-</select>
-<select name="mydate_day" id="id_mydate_day">
-<option value="0">---</option>
-<option value="1">1</option>
-<option value="2">2</option>
-<option value="3">3</option>
-<option value="4">4</option>
-<option value="5">5</option>
-<option value="6">6</option>
-<option value="7">7</option>
-<option value="8">8</option>
-<option value="9">9</option>
-<option value="10">10</option>
-<option value="11">11</option>
-<option value="12">12</option>
-<option value="13">13</option>
-<option value="14">14</option>
-<option value="15" selected="selected">15</option>
-<option value="16">16</option>
-<option value="17">17</option>
-<option value="18">18</option>
-<option value="19">19</option>
-<option value="20">20</option>
-<option value="21">21</option>
-<option value="22">22</option>
-<option value="23">23</option>
-<option value="24">24</option>
-<option value="25">25</option>
-<option value="26">26</option>
-<option value="27">27</option>
-<option value="28">28</option>
-<option value="29">29</option>
-<option value="30">30</option>
-<option value="31">31</option>
-</select>
-<select name="mydate_year" id="id_mydate_year">
-<option value="0">---</option>
-<option value="2007">2007</option>
-<option value="2008">2008</option>
-<option value="2009">2009</option>
-<option value="2010" selected="selected">2010</option>
-<option value="2011">2011</option>
-<option value="2012">2012</option>
-<option value="2013">2013</option>
-<option value="2014">2014</option>
-<option value="2015">2015</option>
-<option value="2016">2016</option>
-</select>""")
-
-        # Rendering a datetime value.
-        self.assertHTMLEqual(w.render('mydate', datetime.date(2010, 4, 15)), w.render('mydate', '2010-04-15'))
-
-        # Invalid dates should still render the failed date.
-        self.assertHTMLEqual(w.render('mydate', '2010-02-31'), """<select name="mydate_month" id="id_mydate_month">
-<option value="0">---</option>
-<option value="1">January</option>
-<option value="2" selected="selected">February</option>
-<option value="3">March</option>
-<option value="4">April</option>
-<option value="5">May</option>
-<option value="6">June</option>
-<option value="7">July</option>
-<option value="8">August</option>
-<option value="9">September</option>
-<option value="10">October</option>
-<option value="11">November</option>
-<option value="12">December</option>
-</select>
-<select name="mydate_day" id="id_mydate_day">
-<option value="0">---</option>
-<option value="1">1</option>
-<option value="2">2</option>
-<option value="3">3</option>
-<option value="4">4</option>
-<option value="5">5</option>
-<option value="6">6</option>
-<option value="7">7</option>
-<option value="8">8</option>
-<option value="9">9</option>
-<option value="10">10</option>
-<option value="11">11</option>
-<option value="12">12</option>
-<option value="13">13</option>
-<option value="14">14</option>
-<option value="15">15</option>
-<option value="16">16</option>
-<option value="17">17</option>
-<option value="18">18</option>
-<option value="19">19</option>
-<option value="20">20</option>
-<option value="21">21</option>
-<option value="22">22</option>
-<option value="23">23</option>
-<option value="24">24</option>
-<option value="25">25</option>
-<option value="26">26</option>
-<option value="27">27</option>
-<option value="28">28</option>
-<option value="29">29</option>
-<option value="30">30</option>
-<option value="31" selected="selected">31</option>
-</select>
-<select name="mydate_year" id="id_mydate_year">
-<option value="0">---</option>
-<option value="2007">2007</option>
-<option value="2008">2008</option>
-<option value="2009">2009</option>
-<option value="2010" selected="selected">2010</option>
-<option value="2011">2011</option>
-<option value="2012">2012</option>
-<option value="2013">2013</option>
-<option value="2014">2014</option>
-<option value="2015">2015</option>
-<option value="2016">2016</option>
-</select>""")
-
-        # Rendering with a custom months dict.
-        w = SelectDateWidget(months=MONTHS_AP, years=('2013',))
-        self.assertHTMLEqual(w.render('mydate', ''), """<select name="mydate_month" id="id_mydate_month">
-<option value="0">---</option>
-<option value="1">Jan.</option>
-<option value="2">Feb.</option>
-<option value="3">March</option>
-<option value="4">April</option>
-<option value="5">May</option>
-<option value="6">June</option>
-<option value="7">July</option>
-<option value="8">Aug.</option>
-<option value="9">Sept.</option>
-<option value="10">Oct.</option>
-<option value="11">Nov.</option>
-<option value="12">Dec.</option>
-</select>
-
-<select name="mydate_day" id="id_mydate_day">
-<option value="0">---</option>
-<option value="1">1</option>
-<option value="2">2</option>
-<option value="3">3</option>
-<option value="4">4</option>
-<option value="5">5</option>
-<option value="6">6</option>
-<option value="7">7</option>
-<option value="8">8</option>
-<option value="9">9</option>
-<option value="10">10</option>
-<option value="11">11</option>
-<option value="12">12</option>
-<option value="13">13</option>
-<option value="14">14</option>
-<option value="15">15</option>
-<option value="16">16</option>
-<option value="17">17</option>
-<option value="18">18</option>
-<option value="19">19</option>
-<option value="20">20</option>
-<option value="21">21</option>
-<option value="22">22</option>
-<option value="23">23</option>
-<option value="24">24</option>
-<option value="25">25</option>
-<option value="26">26</option>
-<option value="27">27</option>
-<option value="28">28</option>
-<option value="29">29</option>
-<option value="30">30</option>
-<option value="31">31</option>
-</select>
-
-<select name="mydate_year" id="id_mydate_year">
-<option value="0">---</option>
-<option value="2013">2013</option>
-</select>""")
-
-        a = GetDate({'mydate_month': '4', 'mydate_day': '1', 'mydate_year': '2008'})
-        self.assertTrue(a.is_valid())
-        self.assertEqual(a.cleaned_data['mydate'], datetime.date(2008, 4, 1))
-
-        # As with any widget that implements get_value_from_datadict,
-        # we must be prepared to accept the input from the "as_hidden"
-        # rendering as well.
-
-        self.assertHTMLEqual(a['mydate'].as_hidden(), '<input type="hidden" name="mydate" value="2008-4-1" id="id_mydate" />')
-
-        b = GetDate({'mydate': '2008-4-1'})
-        self.assertTrue(b.is_valid())
-        self.assertEqual(b.cleaned_data['mydate'], datetime.date(2008, 4, 1))
-
-        # Invalid dates shouldn't be allowed
-        c = GetDate({'mydate_month': '2', 'mydate_day': '31', 'mydate_year': '2010'})
-        self.assertFalse(c.is_valid())
-        self.assertEqual(c.errors, {'mydate': ['Enter a valid date.']})
-
-        # label tag is correctly associated with month dropdown
-        d = GetDate({'mydate_month': '1', 'mydate_day': '1', 'mydate_year': '2010'})
-        self.assertIn('<label for="id_mydate_month">', d.as_p())
-
-    def test_selectdate_empty_label(self):
-        w = SelectDateWidget(years=('2014',), empty_label='empty_label')
-
-        # Rendering the default state with empty_label setted as string.
-        self.assertInHTML('<option value="0">empty_label</option>', w.render('mydate', ''), count=3)
-
-        w = SelectDateWidget(years=('2014',), empty_label=('empty_year', 'empty_month', 'empty_day'))
-
-        # Rendering the default state with empty_label tuple.
-        self.assertHTMLEqual(w.render('mydate', ''), """<select name="mydate_month" id="id_mydate_month">
-<option value="0">empty_month</option>
-<option value="1">January</option>
-<option value="2">February</option>
-<option value="3">March</option>
-<option value="4">April</option>
-<option value="5">May</option>
-<option value="6">June</option>
-<option value="7">July</option>
-<option value="8">August</option>
-<option value="9">September</option>
-<option value="10">October</option>
-<option value="11">November</option>
-<option value="12">December</option>
-</select>
-<select name="mydate_day" id="id_mydate_day">
-<option value="0">empty_day</option>
-<option value="1">1</option>
-<option value="2">2</option>
-<option value="3">3</option>
-<option value="4">4</option>
-<option value="5">5</option>
-<option value="6">6</option>
-<option value="7">7</option>
-<option value="8">8</option>
-<option value="9">9</option>
-<option value="10">10</option>
-<option value="11">11</option>
-<option value="12">12</option>
-<option value="13">13</option>
-<option value="14">14</option>
-<option value="15">15</option>
-<option value="16">16</option>
-<option value="17">17</option>
-<option value="18">18</option>
-<option value="19">19</option>
-<option value="20">20</option>
-<option value="21">21</option>
-<option value="22">22</option>
-<option value="23">23</option>
-<option value="24">24</option>
-<option value="25">25</option>
-<option value="26">26</option>
-<option value="27">27</option>
-<option value="28">28</option>
-<option value="29">29</option>
-<option value="30">30</option>
-<option value="31">31</option>
-</select>
-<select name="mydate_year" id="id_mydate_year">
-<option value="0">empty_year</option>
-<option value="2014">2014</option>
-</select>""")
-
-        self.assertRaisesMessage(ValueError, 'empty_label list/tuple must have 3 elements.',
-            SelectDateWidget, years=('2014',), empty_label=('not enough', 'values'))
-
-    def test_multiwidget(self):
-        # MultiWidget and MultiValueField #############################################
-        # MultiWidgets are widgets composed of other widgets. They are usually
-        # combined with MultiValueFields - a field that is composed of other fields.
-        # MulitWidgets can themselves be composed of other MultiWidgets.
-        # SplitDateTimeWidget is one example of a MultiWidget.
-
-        class ComplexMultiWidget(MultiWidget):
-            def __init__(self, attrs=None):
-                widgets = (
-                    TextInput(),
-                    SelectMultiple(choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))),
-                    SplitDateTimeWidget(),
-                )
-                super(ComplexMultiWidget, self).__init__(widgets, attrs)
-
-            def decompress(self, value):
-                if value:
-                    data = value.split(',')
-                    return [data[0], list(data[1]), datetime.datetime.strptime(data[2], "%Y-%m-%d %H:%M:%S")]
-                return [None, None, None]
-
-            def format_output(self, rendered_widgets):
-                return '\n'.join(rendered_widgets)
-
-        w = ComplexMultiWidget()
-        self.assertHTMLEqual(w.render('name', 'some text,JP,2007-04-25 06:24:00'), """<input type="text" name="name_0" value="some text" />
-<select multiple="multiple" name="name_1">
-<option value="J" selected="selected">John</option>
-<option value="P" selected="selected">Paul</option>
-<option value="G">George</option>
-<option value="R">Ringo</option>
-</select>
-<input type="text" name="name_2_0" value="2007-04-25" /><input type="text" name="name_2_1" value="06:24:00" />""")
-
-        class ComplexField(MultiValueField):
-            def __init__(self, required=True, widget=None, label=None, initial=None):
-                fields = (
-                    CharField(),
-                    MultipleChoiceField(choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))),
-                    SplitDateTimeField()
-                )
-                super(ComplexField, self).__init__(fields, required, widget, label, initial)
-
-            def compress(self, data_list):
-                if data_list:
-                    return '%s,%s,%s' % (data_list[0], ''.join(data_list[1]), data_list[2])
-                return None
-
-        f = ComplexField(widget=w)
-        self.assertEqual(f.clean(['some text', ['J', 'P'], ['2007-04-25', '6:24:00']]), 'some text,JP,2007-04-25 06:24:00')
-        self.assertFormErrors(['Select a valid choice. X is not one of the available choices.'], f.clean, ['some text', ['X'], ['2007-04-25', '6:24:00']])
-
-        # If insufficient data is provided, None is substituted
-        self.assertFormErrors(['This field is required.'], f.clean, ['some text', ['JP']])
-
-        # test with no initial data
-        self.assertTrue(f.has_changed(None, ['some text', ['J', 'P'], ['2007-04-25', '6:24:00']]))
-
-        # test when the data is the same as initial
-        self.assertFalse(f.has_changed('some text,JP,2007-04-25 06:24:00',
-            ['some text', ['J', 'P'], ['2007-04-25', '6:24:00']]))
-
-        # test when the first widget's data has changed
-        self.assertTrue(f.has_changed('some text,JP,2007-04-25 06:24:00',
-            ['other text', ['J', 'P'], ['2007-04-25', '6:24:00']]))
-
-        # test when the last widget's data has changed. this ensures that it is not
-        # short circuiting while testing the widgets.
-        self.assertTrue(f.has_changed('some text,JP,2007-04-25 06:24:00',
-            ['some text', ['J', 'P'], ['2009-04-25', '11:44:00']]))
-
-        class ComplexFieldForm(Form):
-            field1 = ComplexField(widget=w)
-
-        f = ComplexFieldForm()
-        self.assertHTMLEqual(f.as_table(), """<tr><th><label for="id_field1_0">Field1:</label></th><td><input type="text" name="field1_0" id="id_field1_0" />
-<select multiple="multiple" name="field1_1" id="id_field1_1">
-<option value="J">John</option>
-<option value="P">Paul</option>
-<option value="G">George</option>
-<option value="R">Ringo</option>
-</select>
-<input type="text" name="field1_2_0" id="id_field1_2_0" /><input type="text" name="field1_2_1" id="id_field1_2_1" /></td></tr>""")
-
-        f = ComplexFieldForm({'field1_0': 'some text', 'field1_1': ['J', 'P'], 'field1_2_0': '2007-04-25', 'field1_2_1': '06:24:00'})
-        self.assertHTMLEqual(f.as_table(), """<tr><th><label for="id_field1_0">Field1:</label></th><td><input type="text" name="field1_0" value="some text" id="id_field1_0" />
-<select multiple="multiple" name="field1_1" id="id_field1_1">
-<option value="J" selected="selected">John</option>
-<option value="P" selected="selected">Paul</option>
-<option value="G">George</option>
-<option value="R">Ringo</option>
-</select>
-<input type="text" name="field1_2_0" value="2007-04-25" id="id_field1_2_0" /><input type="text" name="field1_2_1" value="06:24:00" id="id_field1_2_1" /></td></tr>""")
-
-        self.assertEqual(f.cleaned_data['field1'], 'some text,JP,2007-04-25 06:24:00')
-
-    def test_generic_ipaddress_invalid_arguments(self):
-        self.assertRaises(ValueError, GenericIPAddressField, protocol="hamster")
-        self.assertRaises(ValueError, GenericIPAddressField, protocol="ipv4", unpack_ipv4=True)
-
-    def test_generic_ipaddress_as_generic(self):
-        # The edge cases of the IPv6 validation code are not deeply tested
-        # here, they are covered in the tests for django.utils.ipv6
-        f = GenericIPAddressField()
-        self.assertFormErrors(['This field is required.'], f.clean, '')
-        self.assertFormErrors(['This field is required.'], f.clean, None)
-        self.assertEqual(f.clean(' 127.0.0.1 '), '127.0.0.1')
-        self.assertFormErrors(['Enter a valid IPv4 or IPv6 address.'], f.clean, 'foo')
-        self.assertFormErrors(['Enter a valid IPv4 or IPv6 address.'], f.clean, '127.0.0.')
-        self.assertFormErrors(['Enter a valid IPv4 or IPv6 address.'], f.clean, '1.2.3.4.5')
-        self.assertFormErrors(['Enter a valid IPv4 or IPv6 address.'], f.clean, '256.125.1.5')
-        self.assertEqual(f.clean(' fe80::223:6cff:fe8a:2e8a '), 'fe80::223:6cff:fe8a:2e8a')
-        self.assertEqual(f.clean(' 2a02::223:6cff:fe8a:2e8a '), '2a02::223:6cff:fe8a:2e8a')
-        self.assertFormErrors(['This is not a valid IPv6 address.'], f.clean, '12345:2:3:4')
-        self.assertFormErrors(['This is not a valid IPv6 address.'], f.clean, '1::2:3::4')
-        self.assertFormErrors(['This is not a valid IPv6 address.'], f.clean, 'foo::223:6cff:fe8a:2e8a')
-        self.assertFormErrors(['This is not a valid IPv6 address.'], f.clean, '1::2:3:4:5:6:7:8')
-        self.assertFormErrors(['This is not a valid IPv6 address.'], f.clean, '1:2')
-
-    def test_generic_ipaddress_as_ipv4_only(self):
-        f = GenericIPAddressField(protocol="IPv4")
-        self.assertFormErrors(['This field is required.'], f.clean, '')
-        self.assertFormErrors(['This field is required.'], f.clean, None)
-        self.assertEqual(f.clean(' 127.0.0.1 '), '127.0.0.1')
-        self.assertFormErrors(['Enter a valid IPv4 address.'], f.clean, 'foo')
-        self.assertFormErrors(['Enter a valid IPv4 address.'], f.clean, '127.0.0.')
-        self.assertFormErrors(['Enter a valid IPv4 address.'], f.clean, '1.2.3.4.5')
-        self.assertFormErrors(['Enter a valid IPv4 address.'], f.clean, '256.125.1.5')
-        self.assertFormErrors(['Enter a valid IPv4 address.'], f.clean, 'fe80::223:6cff:fe8a:2e8a')
-        self.assertFormErrors(['Enter a valid IPv4 address.'], f.clean, '2a02::223:6cff:fe8a:2e8a')
-
-    def test_generic_ipaddress_as_ipv6_only(self):
-        f = GenericIPAddressField(protocol="IPv6")
-        self.assertFormErrors(['This field is required.'], f.clean, '')
-        self.assertFormErrors(['This field is required.'], f.clean, None)
-        self.assertFormErrors(['Enter a valid IPv6 address.'], f.clean, '127.0.0.1')
-        self.assertFormErrors(['Enter a valid IPv6 address.'], f.clean, 'foo')
-        self.assertFormErrors(['Enter a valid IPv6 address.'], f.clean, '127.0.0.')
-        self.assertFormErrors(['Enter a valid IPv6 address.'], f.clean, '1.2.3.4.5')
-        self.assertFormErrors(['Enter a valid IPv6 address.'], f.clean, '256.125.1.5')
-        self.assertEqual(f.clean(' fe80::223:6cff:fe8a:2e8a '), 'fe80::223:6cff:fe8a:2e8a')
-        self.assertEqual(f.clean(' 2a02::223:6cff:fe8a:2e8a '), '2a02::223:6cff:fe8a:2e8a')
-        self.assertFormErrors(['This is not a valid IPv6 address.'], f.clean, '12345:2:3:4')
-        self.assertFormErrors(['This is not a valid IPv6 address.'], f.clean, '1::2:3::4')
-        self.assertFormErrors(['This is not a valid IPv6 address.'], f.clean, 'foo::223:6cff:fe8a:2e8a')
-        self.assertFormErrors(['This is not a valid IPv6 address.'], f.clean, '1::2:3:4:5:6:7:8')
-        self.assertFormErrors(['This is not a valid IPv6 address.'], f.clean, '1:2')
-
-    def test_generic_ipaddress_as_generic_not_required(self):
-        f = GenericIPAddressField(required=False)
-        self.assertEqual(f.clean(''), '')
-        self.assertEqual(f.clean(None), '')
-        self.assertEqual(f.clean('127.0.0.1'), '127.0.0.1')
-        self.assertFormErrors(['Enter a valid IPv4 or IPv6 address.'], f.clean, 'foo')
-        self.assertFormErrors(['Enter a valid IPv4 or IPv6 address.'], f.clean, '127.0.0.')
-        self.assertFormErrors(['Enter a valid IPv4 or IPv6 address.'], f.clean, '1.2.3.4.5')
-        self.assertFormErrors(['Enter a valid IPv4 or IPv6 address.'], f.clean, '256.125.1.5')
-        self.assertEqual(f.clean(' fe80::223:6cff:fe8a:2e8a '), 'fe80::223:6cff:fe8a:2e8a')
-        self.assertEqual(f.clean(' 2a02::223:6cff:fe8a:2e8a '), '2a02::223:6cff:fe8a:2e8a')
-        self.assertFormErrors(['This is not a valid IPv6 address.'], f.clean, '12345:2:3:4')
-        self.assertFormErrors(['This is not a valid IPv6 address.'], f.clean, '1::2:3::4')
-        self.assertFormErrors(['This is not a valid IPv6 address.'], f.clean, 'foo::223:6cff:fe8a:2e8a')
-        self.assertFormErrors(['This is not a valid IPv6 address.'], f.clean, '1::2:3:4:5:6:7:8')
-        self.assertFormErrors(['This is not a valid IPv6 address.'], f.clean, '1:2')
-
-    def test_generic_ipaddress_normalization(self):
-        # Test the normalizing code
-        f = GenericIPAddressField()
-        self.assertEqual(f.clean(' ::ffff:0a0a:0a0a  '), '::ffff:10.10.10.10')
-        self.assertEqual(f.clean(' ::ffff:10.10.10.10  '), '::ffff:10.10.10.10')
-        self.assertEqual(f.clean(' 2001:000:a:0000:0:fe:fe:beef  '), '2001:0:a::fe:fe:beef')
-        self.assertEqual(f.clean(' 2001::a:0000:0:fe:fe:beef  '), '2001:0:a::fe:fe:beef')
-
-        f = GenericIPAddressField(unpack_ipv4=True)
-        self.assertEqual(f.clean(' ::ffff:0a0a:0a0a'), '10.10.10.10')
-
-    def test_slugfield_normalization(self):
-        f = SlugField()
-        self.assertEqual(f.clean('    aa-bb-cc    '), 'aa-bb-cc')
-
-    def test_urlfield_normalization(self):
-        f = URLField()
-        self.assertEqual(f.clean('http://example.com/     '), 'http://example.com/')
-
-    def test_smart_text(self):
-        class Test:
-            if six.PY3:
-                def __str__(self):
-                    return 'ŠĐĆŽćžšđ'
-            else:
-                def __str__(self):
-                    return 'ŠĐĆŽćžšđ'.encode('utf-8')
-
-        class TestU:
-            if six.PY3:
-                def __str__(self):
-                    return 'ŠĐĆŽćžšđ'
-
-                def __bytes__(self):
-                    return b'Foo'
-            else:
-                def __str__(self):
-                    return b'Foo'
-
-                def __unicode__(self):
-                    return '\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111'
-
-        self.assertEqual(smart_text(Test()), '\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111')
-        self.assertEqual(smart_text(TestU()), '\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111')
-        self.assertEqual(smart_text(1), '1')
-        self.assertEqual(smart_text('foo'), 'foo')
-
-    def test_accessing_clean(self):
-        class UserForm(Form):
-            username = CharField(max_length=10)
-            password = CharField(widget=PasswordInput)
-
-            def clean(self):
-                data = self.cleaned_data
-
-                if not self.errors:
-                    data['username'] = data['username'].lower()
-
-                return data
-
-        f = UserForm({'username': 'SirRobin', 'password': 'blue'})
-        self.assertTrue(f.is_valid())
-        self.assertEqual(f.cleaned_data['username'], 'sirrobin')
-
-    def test_changing_cleaned_data_nothing_returned(self):
-        class UserForm(Form):
-            username = CharField(max_length=10)
-            password = CharField(widget=PasswordInput)
-
-            def clean(self):
-                self.cleaned_data['username'] = self.cleaned_data['username'].lower()
-                # don't return anything
-
-        f = UserForm({'username': 'SirRobin', 'password': 'blue'})
-        self.assertTrue(f.is_valid())
-        self.assertEqual(f.cleaned_data['username'], 'sirrobin')
-
-    def test_changing_cleaned_data_in_clean(self):
-        class UserForm(Form):
-            username = CharField(max_length=10)
-            password = CharField(widget=PasswordInput)
-
-            def clean(self):
-                data = self.cleaned_data
-
-                # Return a different dict. We have not changed self.cleaned_data.
-                return {
-                    'username': data['username'].lower(),
-                    'password': 'this_is_not_a_secret',
-                }
-
-        f = UserForm({'username': 'SirRobin', 'password': 'blue'})
-        self.assertTrue(f.is_valid())
-        self.assertEqual(f.cleaned_data['username'], 'sirrobin')
-
-    def test_overriding_errorlist(self):
-        @python_2_unicode_compatible
-        class DivErrorList(ErrorList):
-            def __str__(self):
-                return self.as_divs()
-
-            def as_divs(self):
-                if not self:
-                    return ''
-                return '<div class="errorlist">%s</div>' % ''.join('<div class="error">%s</div>' % force_text(e) for e in self)
-
-        class CommentForm(Form):
-            name = CharField(max_length=50, required=False)
-            email = EmailField()
-            comment = CharField()
-
-        data = dict(email='invalid')
-        f = CommentForm(data, auto_id=False, error_class=DivErrorList)
-        self.assertHTMLEqual(f.as_p(), """<p>Name: <input type="text" name="name" maxlength="50" /></p>
-<div class="errorlist"><div class="error">Enter a valid email address.</div></div>
-<p>Email: <input type="email" name="email" value="invalid" /></p>
-<div class="errorlist"><div class="error">This field is required.</div></div>
-<p>Comment: <input type="text" name="comment" /></p>""")
-
-    def test_multipart_encoded_form(self):
-        class FormWithoutFile(Form):
-            username = CharField()
-
-        class FormWithFile(Form):
-            username = CharField()
-            file = FileField()
-
-        class FormWithImage(Form):
-            image = ImageField()
-
-        self.assertFalse(FormWithoutFile().is_multipart())
-        self.assertTrue(FormWithFile().is_multipart())
-        self.assertTrue(FormWithImage().is_multipart())
-
-    def test_selectdatewidget_required(self):
-        class GetNotRequiredDate(Form):
-            mydate = DateField(widget=SelectDateWidget, required=False)
-
-        class GetRequiredDate(Form):
-            mydate = DateField(widget=SelectDateWidget, required=True)
-
-        self.assertFalse(GetNotRequiredDate().fields['mydate'].widget.is_required)
-        self.assertTrue(GetRequiredDate().fields['mydate'].widget.is_required)
-
-
-@override_settings(USE_L10N=True)
-class FormsExtraL10NTestCase(TestCase):
-    def setUp(self):
-        super(FormsExtraL10NTestCase, self).setUp()
-        translation.activate('nl')
-
-    def tearDown(self):
-        translation.deactivate()
-        super(FormsExtraL10NTestCase, self).tearDown()
-
-    def test_l10n(self):
-        w = SelectDateWidget(years=('2007', '2008', '2009', '2010', '2011', '2012', '2013', '2014', '2015', '2016'))
-        self.assertEqual(w.value_from_datadict({'date_year': '2010', 'date_month': '8', 'date_day': '13'}, {}, 'date'), '13-08-2010')
-
-        self.assertHTMLEqual(w.render('date', '13-08-2010'), """<select name="date_day" id="id_date_day">
-<option value="0">---</option>
-<option value="1">1</option>
-<option value="2">2</option>
-<option value="3">3</option>
-<option value="4">4</option>
-<option value="5">5</option>
-<option value="6">6</option>
-<option value="7">7</option>
-<option value="8">8</option>
-<option value="9">9</option>
-<option value="10">10</option>
-<option value="11">11</option>
-<option value="12">12</option>
-<option value="13" selected="selected">13</option>
-<option value="14">14</option>
-<option value="15">15</option>
-<option value="16">16</option>
-<option value="17">17</option>
-<option value="18">18</option>
-<option value="19">19</option>
-<option value="20">20</option>
-<option value="21">21</option>
-<option value="22">22</option>
-<option value="23">23</option>
-<option value="24">24</option>
-<option value="25">25</option>
-<option value="26">26</option>
-<option value="27">27</option>
-<option value="28">28</option>
-<option value="29">29</option>
-<option value="30">30</option>
-<option value="31">31</option>
-</select>
-<select name="date_month" id="id_date_month">
-<option value="0">---</option>
-<option value="1">januari</option>
-<option value="2">februari</option>
-<option value="3">maart</option>
-<option value="4">april</option>
-<option value="5">mei</option>
-<option value="6">juni</option>
-<option value="7">juli</option>
-<option value="8" selected="selected">augustus</option>
-<option value="9">september</option>
-<option value="10">oktober</option>
-<option value="11">november</option>
-<option value="12">december</option>
-</select>
-<select name="date_year" id="id_date_year">
-<option value="0">---</option>
-<option value="2007">2007</option>
-<option value="2008">2008</option>
-<option value="2009">2009</option>
-<option value="2010" selected="selected">2010</option>
-<option value="2011">2011</option>
-<option value="2012">2012</option>
-<option value="2013">2013</option>
-<option value="2014">2014</option>
-<option value="2015">2015</option>
-<option value="2016">2016</option>
-</select>""")
-
-        # Years before 1900 work
-        w = SelectDateWidget(years=('1899',))
-        self.assertEqual(w.value_from_datadict({'date_year': '1899', 'date_month': '8', 'date_day': '13'}, {}, 'date'), '13-08-1899')
-
-    def test_l10n_date_changed(self):
-        """
-        Ensure that DateField.has_changed() with SelectDateWidget works
-        correctly with a localized date format.
-        Refs #17165.
-        """
-        # With Field.show_hidden_initial=False -----------------------
-        b = GetDate({
-            'mydate_year': '2008',
-            'mydate_month': '4',
-            'mydate_day': '1',
-        }, initial={'mydate': datetime.date(2008, 4, 1)})
-        self.assertFalse(b.has_changed())
-
-        b = GetDate({
-            'mydate_year': '2008',
-            'mydate_month': '4',
-            'mydate_day': '2',
-        }, initial={'mydate': datetime.date(2008, 4, 1)})
-        self.assertTrue(b.has_changed())
-
-        # With Field.show_hidden_initial=True ------------------------
-        b = GetDateShowHiddenInitial({
-            'mydate_year': '2008',
-            'mydate_month': '4',
-            'mydate_day': '1',
-            'initial-mydate': HiddenInput()._format_value(datetime.date(2008, 4, 1))
-        }, initial={'mydate': datetime.date(2008, 4, 1)})
-        self.assertFalse(b.has_changed())
-
-        b = GetDateShowHiddenInitial({
-            'mydate_year': '2008',
-            'mydate_month': '4',
-            'mydate_day': '22',
-            'initial-mydate': HiddenInput()._format_value(datetime.date(2008, 4, 1))
-        }, initial={'mydate': datetime.date(2008, 4, 1)})
-        self.assertTrue(b.has_changed())
-
-        b = GetDateShowHiddenInitial({
-            'mydate_year': '2008',
-            'mydate_month': '4',
-            'mydate_day': '22',
-            'initial-mydate': HiddenInput()._format_value(datetime.date(2008, 4, 1))
-        }, initial={'mydate': datetime.date(2008, 4, 22)})
-        self.assertTrue(b.has_changed())
-
-        b = GetDateShowHiddenInitial({
-            'mydate_year': '2008',
-            'mydate_month': '4',
-            'mydate_day': '22',
-            'initial-mydate': HiddenInput()._format_value(datetime.date(2008, 4, 22))
-        }, initial={'mydate': datetime.date(2008, 4, 1)})
-        self.assertFalse(b.has_changed())
-
-    def test_l10n_invalid_date_in(self):
-        # Invalid dates shouldn't be allowed
-        a = GetDate({'mydate_month': '2', 'mydate_day': '31', 'mydate_year': '2010'})
-        self.assertFalse(a.is_valid())
-        # 'Geef een geldige datum op.' = 'Enter a valid date.'
-        self.assertEqual(a.errors, {'mydate': ['Geef een geldige datum op.']})
-
-    def test_form_label_association(self):
-        # label tag is correctly associated with first rendered dropdown
-        a = GetDate({'mydate_month': '1', 'mydate_day': '1', 'mydate_year': '2010'})
-        self.assertIn('<label for="id_mydate_day">', a.as_p())
diff --git a/tests/forms_tests/tests/test_fields.py b/tests/forms_tests/tests/test_fields.py
index 003df1c3a2..fda451281f 100644
--- a/tests/forms_tests/tests/test_fields.py
+++ b/tests/forms_tests/tests/test_fields.py
@@ -43,11 +43,11 @@ from django.core.files.uploadedfile import SimpleUploadedFile
 from django.forms import (
     BooleanField, CharField, ChoiceField, ComboField, DateField, DateTimeField,
     DecimalField, DurationField, EmailField, Field, FileField, FilePathField,
-    FloatField, Form, forms, HiddenInput, ImageField, IntegerField,
-    MultipleChoiceField, NullBooleanField, NumberInput, PasswordInput,
-    RadioSelect, RegexField, SplitDateTimeField, TextInput, Textarea,
-    TimeField, TypedChoiceField, TypedMultipleChoiceField, URLField, UUIDField,
-    ValidationError, Widget,
+    FloatField, Form, forms, GenericIPAddressField, HiddenInput, ImageField,
+    IntegerField, MultipleChoiceField, NullBooleanField, NumberInput,
+    PasswordInput, RadioSelect, RegexField, SlugField, SplitDateTimeField,
+    TextInput, Textarea, TimeField, TypedChoiceField, TypedMultipleChoiceField,
+    URLField, UUIDField, ValidationError, Widget,
 )
 from django.test import SimpleTestCase, ignore_warnings
 from django.utils import formats
@@ -906,6 +906,10 @@ class FieldsTests(SimpleTestCase):
         f = URLField(required=False)
         self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'", f.clean, 23)
 
+    def test_urlfield_normalization(self):
+        f = URLField()
+        self.assertEqual(f.clean('http://example.com/     '), 'http://example.com/')
+
     # BooleanField ################################################################
 
     def test_booleanfield_1(self):
@@ -1385,6 +1389,96 @@ class FieldsTests(SimpleTestCase):
         self.assertFalse(f.has_changed(datetime.datetime(2008, 5, 6, 12, 40, 00), ['06/05/2008', '12:40']))
         self.assertTrue(f.has_changed(datetime.datetime(2008, 5, 6, 12, 40, 00), ['06/05/2008', '12:41']))
 
+    # GenericIPAddressField #######################################################
+
+    def test_generic_ipaddress_invalid_arguments(self):
+        self.assertRaises(ValueError, GenericIPAddressField, protocol="hamster")
+        self.assertRaises(ValueError, GenericIPAddressField, protocol="ipv4", unpack_ipv4=True)
+
+    def test_generic_ipaddress_as_generic(self):
+        # The edge cases of the IPv6 validation code are not deeply tested
+        # here, they are covered in the tests for django.utils.ipv6
+        f = GenericIPAddressField()
+        self.assertRaisesMessage(ValidationError, "'This field is required.'", f.clean, '')
+        self.assertRaisesMessage(ValidationError, "'This field is required.'", f.clean, None)
+        self.assertEqual(f.clean(' 127.0.0.1 '), '127.0.0.1')
+        self.assertRaisesMessage(ValidationError, "'Enter a valid IPv4 or IPv6 address.'", f.clean, 'foo')
+        self.assertRaisesMessage(ValidationError, "'Enter a valid IPv4 or IPv6 address.'", f.clean, '127.0.0.')
+        self.assertRaisesMessage(ValidationError, "'Enter a valid IPv4 or IPv6 address.'", f.clean, '1.2.3.4.5')
+        self.assertRaisesMessage(ValidationError, "'Enter a valid IPv4 or IPv6 address.'", f.clean, '256.125.1.5')
+        self.assertEqual(f.clean(' fe80::223:6cff:fe8a:2e8a '), 'fe80::223:6cff:fe8a:2e8a')
+        self.assertEqual(f.clean(' 2a02::223:6cff:fe8a:2e8a '), '2a02::223:6cff:fe8a:2e8a')
+        self.assertRaisesMessage(ValidationError, "'This is not a valid IPv6 address.'", f.clean, '12345:2:3:4')
+        self.assertRaisesMessage(ValidationError, "'This is not a valid IPv6 address.'", f.clean, '1::2:3::4')
+        self.assertRaisesMessage(ValidationError, "'This is not a valid IPv6 address.'", f.clean, 'foo::223:6cff:fe8a:2e8a')
+        self.assertRaisesMessage(ValidationError, "'This is not a valid IPv6 address.'", f.clean, '1::2:3:4:5:6:7:8')
+        self.assertRaisesMessage(ValidationError, "'This is not a valid IPv6 address.'", f.clean, '1:2')
+
+    def test_generic_ipaddress_as_ipv4_only(self):
+        f = GenericIPAddressField(protocol="IPv4")
+        self.assertRaisesMessage(ValidationError, "'This field is required.'", f.clean, '')
+        self.assertRaisesMessage(ValidationError, "'This field is required.'", f.clean, None)
+        self.assertEqual(f.clean(' 127.0.0.1 '), '127.0.0.1')
+        self.assertRaisesMessage(ValidationError, "'Enter a valid IPv4 address.'", f.clean, 'foo')
+        self.assertRaisesMessage(ValidationError, "'Enter a valid IPv4 address.'", f.clean, '127.0.0.')
+        self.assertRaisesMessage(ValidationError, "'Enter a valid IPv4 address.'", f.clean, '1.2.3.4.5')
+        self.assertRaisesMessage(ValidationError, "'Enter a valid IPv4 address.'", f.clean, '256.125.1.5')
+        self.assertRaisesMessage(ValidationError, "'Enter a valid IPv4 address.'", f.clean, 'fe80::223:6cff:fe8a:2e8a')
+        self.assertRaisesMessage(ValidationError, "'Enter a valid IPv4 address.'", f.clean, '2a02::223:6cff:fe8a:2e8a')
+
+    def test_generic_ipaddress_as_ipv6_only(self):
+        f = GenericIPAddressField(protocol="IPv6")
+        self.assertRaisesMessage(ValidationError, "'This field is required.'", f.clean, '')
+        self.assertRaisesMessage(ValidationError, "'This field is required.'", f.clean, None)
+        self.assertRaisesMessage(ValidationError, "'Enter a valid IPv6 address.'", f.clean, '127.0.0.1')
+        self.assertRaisesMessage(ValidationError, "'Enter a valid IPv6 address.'", f.clean, 'foo')
+        self.assertRaisesMessage(ValidationError, "'Enter a valid IPv6 address.'", f.clean, '127.0.0.')
+        self.assertRaisesMessage(ValidationError, "'Enter a valid IPv6 address.'", f.clean, '1.2.3.4.5')
+        self.assertRaisesMessage(ValidationError, "'Enter a valid IPv6 address.'", f.clean, '256.125.1.5')
+        self.assertEqual(f.clean(' fe80::223:6cff:fe8a:2e8a '), 'fe80::223:6cff:fe8a:2e8a')
+        self.assertEqual(f.clean(' 2a02::223:6cff:fe8a:2e8a '), '2a02::223:6cff:fe8a:2e8a')
+        self.assertRaisesMessage(ValidationError, "'This is not a valid IPv6 address.'", f.clean, '12345:2:3:4')
+        self.assertRaisesMessage(ValidationError, "'This is not a valid IPv6 address.'", f.clean, '1::2:3::4')
+        self.assertRaisesMessage(ValidationError, "'This is not a valid IPv6 address.'", f.clean, 'foo::223:6cff:fe8a:2e8a')
+        self.assertRaisesMessage(ValidationError, "'This is not a valid IPv6 address.'", f.clean, '1::2:3:4:5:6:7:8')
+        self.assertRaisesMessage(ValidationError, "'This is not a valid IPv6 address.'", f.clean, '1:2')
+
+    def test_generic_ipaddress_as_generic_not_required(self):
+        f = GenericIPAddressField(required=False)
+        self.assertEqual(f.clean(''), '')
+        self.assertEqual(f.clean(None), '')
+        self.assertEqual(f.clean('127.0.0.1'), '127.0.0.1')
+        self.assertRaisesMessage(ValidationError, "'Enter a valid IPv4 or IPv6 address.'", f.clean, 'foo')
+        self.assertRaisesMessage(ValidationError, "'Enter a valid IPv4 or IPv6 address.'", f.clean, '127.0.0.')
+        self.assertRaisesMessage(ValidationError, "'Enter a valid IPv4 or IPv6 address.'", f.clean, '1.2.3.4.5')
+        self.assertRaisesMessage(ValidationError, "'Enter a valid IPv4 or IPv6 address.'", f.clean, '256.125.1.5')
+        self.assertEqual(f.clean(' fe80::223:6cff:fe8a:2e8a '), 'fe80::223:6cff:fe8a:2e8a')
+        self.assertEqual(f.clean(' 2a02::223:6cff:fe8a:2e8a '), '2a02::223:6cff:fe8a:2e8a')
+        self.assertRaisesMessage(ValidationError, "'This is not a valid IPv6 address.'", f.clean, '12345:2:3:4')
+        self.assertRaisesMessage(ValidationError, "'This is not a valid IPv6 address.'", f.clean, '1::2:3::4')
+        self.assertRaisesMessage(ValidationError, "'This is not a valid IPv6 address.'", f.clean, 'foo::223:6cff:fe8a:2e8a')
+        self.assertRaisesMessage(ValidationError, "'This is not a valid IPv6 address.'", f.clean, '1::2:3:4:5:6:7:8')
+        self.assertRaisesMessage(ValidationError, "'This is not a valid IPv6 address.'", f.clean, '1:2')
+
+    def test_generic_ipaddress_normalization(self):
+        # Test the normalizing code
+        f = GenericIPAddressField()
+        self.assertEqual(f.clean(' ::ffff:0a0a:0a0a  '), '::ffff:10.10.10.10')
+        self.assertEqual(f.clean(' ::ffff:10.10.10.10  '), '::ffff:10.10.10.10')
+        self.assertEqual(f.clean(' 2001:000:a:0000:0:fe:fe:beef  '), '2001:0:a::fe:fe:beef')
+        self.assertEqual(f.clean(' 2001::a:0000:0:fe:fe:beef  '), '2001:0:a::fe:fe:beef')
+
+        f = GenericIPAddressField(unpack_ipv4=True)
+        self.assertEqual(f.clean(' ::ffff:0a0a:0a0a'), '10.10.10.10')
+
+    # SlugField ###################################################################
+
+    def test_slugfield_normalization(self):
+        f = SlugField()
+        self.assertEqual(f.clean('    aa-bb-cc    '), 'aa-bb-cc')
+
+    # UUIDField ###################################################################
+
     def test_uuidfield_1(self):
         field = UUIDField()
         value = field.clean('550e8400e29b41d4a716446655440000')
diff --git a/tests/forms_tests/tests/test_forms.py b/tests/forms_tests/tests/test_forms.py
index d938694e8f..df090ef60e 100644
--- a/tests/forms_tests/tests/test_forms.py
+++ b/tests/forms_tests/tests/test_forms.py
@@ -11,9 +11,10 @@ from django.core.validators import RegexValidator
 from django.forms import (
     BooleanField, CharField, CheckboxSelectMultiple, ChoiceField, DateField,
     DateTimeField, EmailField, FileField, FloatField, Form, forms, HiddenInput,
-    IntegerField, MultipleChoiceField, MultipleHiddenInput, MultiValueField,
-    NullBooleanField, PasswordInput, RadioSelect, Select, SplitDateTimeField,
-    Textarea, TextInput, TimeField, ValidationError, widgets
+    ImageField, IntegerField, MultipleChoiceField, MultipleHiddenInput,
+    MultiValueField, NullBooleanField, PasswordInput, RadioSelect, Select,
+    SplitDateTimeField, SplitHiddenDateTimeWidget, Textarea, TextInput,
+    TimeField, ValidationError,
 )
 from django.forms.utils import ErrorList
 from django.http import QueryDict
@@ -21,7 +22,7 @@ from django.template import Template, Context
 from django.test import TestCase
 from django.test.utils import str_prefix
 from django.utils.datastructures import MultiValueDict
-from django.utils.encoding import force_text
+from django.utils.encoding import force_text, python_2_unicode_compatible
 from django.utils.html import format_html
 from django.utils.safestring import mark_safe, SafeData
 from django.utils import six
@@ -1945,7 +1946,7 @@ class FormsTestCase(TestCase):
 
     def test_label_split_datetime_not_displayed(self):
         class EventForm(Form):
-            happened_at = SplitDateTimeField(widget=widgets.SplitHiddenDateTimeWidget)
+            happened_at = SplitDateTimeField(widget=SplitHiddenDateTimeWidget)
 
         form = EventForm()
         self.assertHTMLEqual(form.as_ul(), '<input type="hidden" name="happened_at_0" id="id_happened_at_0" /><input type="hidden" name="happened_at_1" id="id_happened_at_1" />')
@@ -2399,6 +2400,31 @@ class FormsTestCase(TestCase):
 <tr><th><label for="id_last_name">Last name:</label></th><td><input id="id_last_name" name="last_name" type="text" value="Lennon" /></td></tr>"""
         )
 
+    def test_errorlist_override(self):
+        @python_2_unicode_compatible
+        class DivErrorList(ErrorList):
+            def __str__(self):
+                return self.as_divs()
+
+            def as_divs(self):
+                if not self:
+                    return ''
+                return '<div class="errorlist">%s</div>' % ''.join(
+                    '<div class="error">%s</div>' % force_text(e) for e in self)
+
+        class CommentForm(Form):
+            name = CharField(max_length=50, required=False)
+            email = EmailField()
+            comment = CharField()
+
+        data = dict(email='invalid')
+        f = CommentForm(data, auto_id=False, error_class=DivErrorList)
+        self.assertHTMLEqual(f.as_p(), """<p>Name: <input type="text" name="name" maxlength="50" /></p>
+<div class="errorlist"><div class="error">Enter a valid email address.</div></div>
+<p>Email: <input type="email" name="email" value="invalid" /></p>
+<div class="errorlist"><div class="error">This field is required.</div></div>
+<p>Comment: <input type="text" name="comment" /></p>""")
+
     def test_baseform_repr(self):
         """
         BaseForm.__repr__() should contain some basic information about the
@@ -2423,3 +2449,66 @@ class FormsTestCase(TestCase):
         self.assertRaises(AttributeError, lambda: p.cleaned_data)
         self.assertFalse(p.is_valid())
         self.assertEqual(p.cleaned_data, {'first_name': 'John', 'last_name': 'Lennon'})
+
+    def test_accessing_clean(self):
+        class UserForm(Form):
+            username = CharField(max_length=10)
+            password = CharField(widget=PasswordInput)
+
+            def clean(self):
+                data = self.cleaned_data
+
+                if not self.errors:
+                    data['username'] = data['username'].lower()
+
+                return data
+
+        f = UserForm({'username': 'SirRobin', 'password': 'blue'})
+        self.assertTrue(f.is_valid())
+        self.assertEqual(f.cleaned_data['username'], 'sirrobin')
+
+    def test_changing_cleaned_data_nothing_returned(self):
+        class UserForm(Form):
+            username = CharField(max_length=10)
+            password = CharField(widget=PasswordInput)
+
+            def clean(self):
+                self.cleaned_data['username'] = self.cleaned_data['username'].lower()
+                # don't return anything
+
+        f = UserForm({'username': 'SirRobin', 'password': 'blue'})
+        self.assertTrue(f.is_valid())
+        self.assertEqual(f.cleaned_data['username'], 'sirrobin')
+
+    def test_changing_cleaned_data_in_clean(self):
+        class UserForm(Form):
+            username = CharField(max_length=10)
+            password = CharField(widget=PasswordInput)
+
+            def clean(self):
+                data = self.cleaned_data
+
+                # Return a different dict. We have not changed self.cleaned_data.
+                return {
+                    'username': data['username'].lower(),
+                    'password': 'this_is_not_a_secret',
+                }
+
+        f = UserForm({'username': 'SirRobin', 'password': 'blue'})
+        self.assertTrue(f.is_valid())
+        self.assertEqual(f.cleaned_data['username'], 'sirrobin')
+
+    def test_multipart_encoded_form(self):
+        class FormWithoutFile(Form):
+            username = CharField()
+
+        class FormWithFile(Form):
+            username = CharField()
+            file = FileField()
+
+        class FormWithImage(Form):
+            image = ImageField()
+
+        self.assertFalse(FormWithoutFile().is_multipart())
+        self.assertTrue(FormWithFile().is_multipart())
+        self.assertTrue(FormWithImage().is_multipart())
diff --git a/tests/forms_tests/tests/test_widgets.py b/tests/forms_tests/tests/test_widgets.py
index efaefe1180..dd8a9b4030 100644
--- a/tests/forms_tests/tests/test_widgets.py
+++ b/tests/forms_tests/tests/test_widgets.py
@@ -8,23 +8,25 @@ from django.contrib.admin.tests import AdminSeleniumWebDriverTestCase
 from django.core.files.uploadedfile import SimpleUploadedFile
 from django.core.urlresolvers import reverse
 from django.forms import (
-    BooleanField, CheckboxInput, CheckboxSelectMultiple, ChoiceField,
-    ClearableFileInput, DateInput, DateTimeInput, FileInput,
-    Form, HiddenInput, MultipleHiddenInput, MultiWidget, NullBooleanSelect,
-    PasswordInput, RadioSelect, Select, SelectMultiple, SplitDateTimeWidget,
-    Textarea, TextInput, TimeInput,
+    BooleanField, CharField, CheckboxInput, CheckboxSelectMultiple,
+    ChoiceField, ClearableFileInput, DateField, DateInput, DateTimeInput,
+    FileInput, Form, HiddenInput, MultipleChoiceField, MultipleHiddenInput,
+    MultiValueField, MultiWidget, NullBooleanSelect, PasswordInput,
+    RadioSelect, Select, SelectMultiple, SplitDateTimeField,
+    SplitDateTimeWidget, Textarea, TextInput, TimeInput, ValidationError,
 )
+from django.forms.extras import SelectDateWidget
 from django.forms.widgets import RadioFieldRenderer
 from django.utils.safestring import mark_safe, SafeData
-from django.utils import six
-from django.utils.translation import activate, deactivate, override
+from django.utils import six, translation
 from django.test import TestCase, override_settings
-from django.utils.encoding import python_2_unicode_compatible, force_text
+from django.utils.dates import MONTHS_AP
+from django.utils.encoding import force_text, python_2_unicode_compatible
 
 from ..models import Article
 
 
-class FormsWidgetTestCase(TestCase):
+class FormsWidgetTests(TestCase):
     # Each Widget class corresponds to an HTML form widget. A Widget knows how to
     # render itself, given a field name and some data. Widgets don't perform
     # validation.
@@ -1020,6 +1022,132 @@ beatle J R Ringo False""")
         self.assertHTMLEqual(w.render('date', datetime.datetime(2007, 9, 17, 12, 51, 34)), '<input type="hidden" name="date_0" value="2007-09-17" /><input type="hidden" name="date_1" value="12:51:34" />')
         self.assertHTMLEqual(w.render('date', datetime.datetime(2007, 9, 17, 12, 51)), '<input type="hidden" name="date_0" value="2007-09-17" /><input type="hidden" name="date_1" value="12:51:00" />')
 
+    def test_multiwidget(self):
+        # MultiWidgets are widgets composed of other widgets. They are usually
+        # combined with MultiValueFields - a field that is composed of other fields.
+        # MulitWidgets can themselves be composed of other MultiWidgets.
+        # SplitDateTimeWidget is one example of a MultiWidget.
+
+        class ComplexMultiWidget(MultiWidget):
+            def __init__(self, attrs=None):
+                widgets = (
+                    TextInput(),
+                    SelectMultiple(choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))),
+                    SplitDateTimeWidget(),
+                )
+                super(ComplexMultiWidget, self).__init__(widgets, attrs)
+
+            def decompress(self, value):
+                if value:
+                    data = value.split(',')
+                    return [data[0], list(data[1]), datetime.datetime.strptime(data[2], "%Y-%m-%d %H:%M:%S")]
+                return [None, None, None]
+
+            def format_output(self, rendered_widgets):
+                return '\n'.join(rendered_widgets)
+
+        w = ComplexMultiWidget()
+        self.assertHTMLEqual(
+            w.render('name', 'some text,JP,2007-04-25 06:24:00'),
+            """
+            <input type="text" name="name_0" value="some text" />
+            <select multiple="multiple" name="name_1">
+                <option value="J" selected="selected">John</option>
+                <option value="P" selected="selected">Paul</option>
+                <option value="G">George</option>
+                <option value="R">Ringo</option>
+            </select>
+            <input type="text" name="name_2_0" value="2007-04-25" />
+            <input type="text" name="name_2_1" value="06:24:00" />
+            """,
+        )
+
+        class ComplexField(MultiValueField):
+            def __init__(self, required=True, widget=None, label=None, initial=None):
+                fields = (
+                    CharField(),
+                    MultipleChoiceField(choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))),
+                    SplitDateTimeField()
+                )
+                super(ComplexField, self).__init__(fields, required, widget, label, initial)
+
+            def compress(self, data_list):
+                if data_list:
+                    return '%s,%s,%s' % (data_list[0], ''.join(data_list[1]), data_list[2])
+                return None
+
+        f = ComplexField(widget=w)
+        self.assertEqual(
+            f.clean(['some text', ['J', 'P'], ['2007-04-25', '6:24:00']]),
+            'some text,JP,2007-04-25 06:24:00',
+        )
+
+        with self.assertRaisesMessage(ValidationError,
+                "'Select a valid choice. X is not one of the available choices.'"):
+            f.clean(['some text', ['X'], ['2007-04-25', '6:24:00']])
+
+        # If insufficient data is provided, None is substituted
+        self.assertRaisesMessage(ValidationError, "'This field is required.'", f.clean, ['some text', ['JP']])
+
+        # test with no initial data
+        self.assertTrue(f.has_changed(None, ['some text', ['J', 'P'], ['2007-04-25', '6:24:00']]))
+
+        # test when the data is the same as initial
+        self.assertFalse(f.has_changed('some text,JP,2007-04-25 06:24:00',
+            ['some text', ['J', 'P'], ['2007-04-25', '6:24:00']]))
+
+        # test when the first widget's data has changed
+        self.assertTrue(f.has_changed('some text,JP,2007-04-25 06:24:00',
+            ['other text', ['J', 'P'], ['2007-04-25', '6:24:00']]))
+
+        # test when the last widget's data has changed. this ensures that it is not
+        # short circuiting while testing the widgets.
+        self.assertTrue(f.has_changed('some text,JP,2007-04-25 06:24:00',
+            ['some text', ['J', 'P'], ['2009-04-25', '11:44:00']]))
+
+        class ComplexFieldForm(Form):
+            field1 = ComplexField(widget=w)
+
+        f = ComplexFieldForm()
+        self.assertHTMLEqual(
+            f.as_table(),
+            """
+            <tr><th><label for="id_field1_0">Field1:</label></th>
+            <td><input type="text" name="field1_0" id="id_field1_0" />
+            <select multiple="multiple" name="field1_1" id="id_field1_1">
+            <option value="J">John</option>
+            <option value="P">Paul</option>
+            <option value="G">George</option>
+            <option value="R">Ringo</option>
+            </select>
+            <input type="text" name="field1_2_0" id="id_field1_2_0" />
+            <input type="text" name="field1_2_1" id="id_field1_2_1" /></td></tr>
+            """,
+        )
+
+        f = ComplexFieldForm({
+            'field1_0': 'some text',
+            'field1_1': ['J', 'P'],
+            'field1_2_0': '2007-04-25',
+            'field1_2_1': '06:24:00',
+        })
+        self.assertHTMLEqual(
+            f.as_table(),
+            """
+            <tr><th><label for="id_field1_0">Field1:</label></th>
+            <td><input type="text" name="field1_0" value="some text" id="id_field1_0" />
+            <select multiple="multiple" name="field1_1" id="id_field1_1">
+            <option value="J" selected="selected">John</option>
+            <option value="P" selected="selected">Paul</option>
+            <option value="G">George</option>
+            <option value="R">Ringo</option>
+            </select>
+            <input type="text" name="field1_2_0" value="2007-04-25" id="id_field1_2_0" />
+            <input type="text" name="field1_2_1" value="06:24:00" id="id_field1_2_1" /></td></tr>
+            """,
+        )
+
+        self.assertEqual(f.cleaned_data['field1'], 'some text,JP,2007-04-25 06:24:00')
 
 class NullBooleanSelectLazyForm(Form):
     """Form to test for lazy evaluation. Refs #17190"""
@@ -1027,14 +1155,14 @@ class NullBooleanSelectLazyForm(Form):
 
 
 @override_settings(USE_L10N=True)
-class FormsI18NWidgetsTestCase(TestCase):
+class FormsI18NWidgetsTests(TestCase):
     def setUp(self):
-        super(FormsI18NWidgetsTestCase, self).setUp()
-        activate('de-at')
+        super(FormsI18NWidgetsTests, self).setUp()
+        translation.activate('de-at')
 
     def tearDown(self):
-        deactivate()
-        super(FormsI18NWidgetsTestCase, self).tearDown()
+        translation.deactivate()
+        super(FormsI18NWidgetsTests, self).tearDown()
 
     def test_datetimeinput(self):
         w = DateTimeInput()
@@ -1056,14 +1184,20 @@ class FormsI18NWidgetsTestCase(TestCase):
         d = datetime.datetime(2007, 9, 17, 12, 51, 34, 482548)
         with self.settings(USE_L10N=False):
             self.assertHTMLEqual(w.render('date', d), '<input type="text" name="date" value="2007-09-17 12:51:34" />')
-        with override('es'):
+        with translation.override('es'):
             self.assertHTMLEqual(w.render('date', d), '<input type="text" name="date" value="17/09/2007 12:51:34" />')
 
     def test_splithiddendatetime(self):
         from django.forms.widgets import SplitHiddenDateTimeWidget
 
         w = SplitHiddenDateTimeWidget()
-        self.assertHTMLEqual(w.render('date', datetime.datetime(2007, 9, 17, 12, 51)), '<input type="hidden" name="date_0" value="17.09.2007" /><input type="hidden" name="date_1" value="12:51:00" />')
+        self.assertHTMLEqual(
+            w.render('date', datetime.datetime(2007, 9, 17, 12, 51)),
+            """
+            <input type="hidden" name="date_0" value="17.09.2007" />
+            <input type="hidden" name="date_1" value="12:51:00" />
+            """,
+        )
 
     def test_nullbooleanselect(self):
         """
@@ -1072,7 +1206,16 @@ class FormsI18NWidgetsTestCase(TestCase):
         Refs #17190
         """
         f = NullBooleanSelectLazyForm()
-        self.assertHTMLEqual(f.fields['bool'].widget.render('id_bool', True), '<select name="id_bool">\n<option value="1">Unbekannt</option>\n<option value="2" selected="selected">Ja</option>\n<option value="3">Nein</option>\n</select>')
+        self.assertHTMLEqual(
+            f.fields['bool'].widget.render('id_bool', True),
+            """
+            <select name="id_bool">
+                <option value="1">Unbekannt</option>
+                <option value="2" selected="selected">Ja</option>
+                <option value="3">Nein</option>
+            </select>
+            """,
+        )
 
 
 class SelectAndTextWidget(MultiWidget):
@@ -1151,8 +1294,15 @@ class ClearableFileInputTests(TestCase):
         """
         widget = ClearableFileInput()
         widget.is_required = False
-        self.assertHTMLEqual(widget.render('myfile', FakeFieldFile()),
-                         'Currently: <a href="something">something</a> <input type="checkbox" name="myfile-clear" id="myfile-clear_id" /> <label for="myfile-clear_id">Clear</label><br />Change: <input type="file" name="myfile" />')
+        self.assertHTMLEqual(
+            widget.render('myfile', FakeFieldFile()),
+            """
+            Currently: <a href="something">something</a>
+            <input type="checkbox" name="myfile-clear" id="myfile-clear_id" />
+            <label for="myfile-clear_id">Clear</label><br />
+            Change: <input type="file" name="myfile" />
+            """,
+        )
 
     def test_html_escaped(self):
         """
@@ -1185,8 +1335,13 @@ class ClearableFileInputTests(TestCase):
         """
         widget = ClearableFileInput()
         widget.is_required = True
-        self.assertHTMLEqual(widget.render('myfile', FakeFieldFile()),
-                         'Currently: <a href="something">something</a> <br />Change: <input type="file" name="myfile" />')
+        self.assertHTMLEqual(
+            widget.render('myfile', FakeFieldFile()),
+            """
+            Currently: <a href="something">something</a> <br />
+            Change: <input type="file" name="myfile" />
+            """,
+        )
 
     def test_clear_input_renders_only_if_initial(self):
         """
@@ -1238,3 +1393,567 @@ class ClearableFileInputTests(TestCase):
             '<input type="checkbox" name="myfile-clear" id="myfile-clear_id" /> '
             '<label for="myfile-clear_id">Clear</label><br />Change: <input type="file" name="myfile" />'
         )
+
+
+class GetDate(Form):
+    mydate = DateField(widget=SelectDateWidget)
+
+
+class SelectDateWidgetTests(TestCase):
+
+    # The forms library comes with some extra, higher-level Field and Widget
+    def test_selectdate(self):
+        self.maxDiff = None
+        w = SelectDateWidget(years=('2007', '2008', '2009', '2010', '2011', '2012', '2013', '2014', '2015', '2016'))
+
+        # Rendering the default state.
+        self.assertHTMLEqual(
+            w.render('mydate', ''),
+            """
+            <select name="mydate_month" id="id_mydate_month">
+                <option value="0">---</option>
+                <option value="1">January</option>
+                <option value="2">February</option>
+                <option value="3">March</option>
+                <option value="4">April</option>
+                <option value="5">May</option>
+                <option value="6">June</option>
+                <option value="7">July</option>
+                <option value="8">August</option>
+                <option value="9">September</option>
+                <option value="10">October</option>
+                <option value="11">November</option>
+                <option value="12">December</option>
+            </select>
+
+            <select name="mydate_day" id="id_mydate_day">
+                <option value="0">---</option>
+                <option value="1">1</option>
+                <option value="2">2</option>
+                <option value="3">3</option>
+                <option value="4">4</option>
+                <option value="5">5</option>
+                <option value="6">6</option>
+                <option value="7">7</option>
+                <option value="8">8</option>
+                <option value="9">9</option>
+                <option value="10">10</option>
+                <option value="11">11</option>
+                <option value="12">12</option>
+                <option value="13">13</option>
+                <option value="14">14</option>
+                <option value="15">15</option>
+                <option value="16">16</option>
+                <option value="17">17</option>
+                <option value="18">18</option>
+                <option value="19">19</option>
+                <option value="20">20</option>
+                <option value="21">21</option>
+                <option value="22">22</option>
+                <option value="23">23</option>
+                <option value="24">24</option>
+                <option value="25">25</option>
+                <option value="26">26</option>
+                <option value="27">27</option>
+                <option value="28">28</option>
+                <option value="29">29</option>
+                <option value="30">30</option>
+                <option value="31">31</option>
+            </select>
+
+            <select name="mydate_year" id="id_mydate_year">
+                <option value="0">---</option>
+                <option value="2007">2007</option>
+                <option value="2008">2008</option>
+                <option value="2009">2009</option>
+                <option value="2010">2010</option>
+                <option value="2011">2011</option>
+                <option value="2012">2012</option>
+                <option value="2013">2013</option>
+                <option value="2014">2014</option>
+                <option value="2015">2015</option>
+                <option value="2016">2016</option>
+            </select>
+            """,
+        )
+
+        # Rendering the None or '' values should yield the same output.
+        self.assertHTMLEqual(w.render('mydate', None), w.render('mydate', ''))
+
+        # Rendering a string value.
+        self.assertHTMLEqual(
+            w.render('mydate', '2010-04-15'),
+            """
+            <select name="mydate_month" id="id_mydate_month">
+                <option value="0">---</option>
+                <option value="1">January</option>
+                <option value="2">February</option>
+                <option value="3">March</option>
+                <option value="4" selected="selected">April</option>
+                <option value="5">May</option>
+                <option value="6">June</option>
+                <option value="7">July</option>
+                <option value="8">August</option>
+                <option value="9">September</option>
+                <option value="10">October</option>
+                <option value="11">November</option>
+                <option value="12">December</option>
+            </select>
+
+            <select name="mydate_day" id="id_mydate_day">
+                <option value="0">---</option>
+                <option value="1">1</option>
+                <option value="2">2</option>
+                <option value="3">3</option>
+                <option value="4">4</option>
+                <option value="5">5</option>
+                <option value="6">6</option>
+                <option value="7">7</option>
+                <option value="8">8</option>
+                <option value="9">9</option>
+                <option value="10">10</option>
+                <option value="11">11</option>
+                <option value="12">12</option>
+                <option value="13">13</option>
+                <option value="14">14</option>
+                <option value="15" selected="selected">15</option>
+                <option value="16">16</option>
+                <option value="17">17</option>
+                <option value="18">18</option>
+                <option value="19">19</option>
+                <option value="20">20</option>
+                <option value="21">21</option>
+                <option value="22">22</option>
+                <option value="23">23</option>
+                <option value="24">24</option>
+                <option value="25">25</option>
+                <option value="26">26</option>
+                <option value="27">27</option>
+                <option value="28">28</option>
+                <option value="29">29</option>
+                <option value="30">30</option>
+                <option value="31">31</option>
+            </select>
+
+            <select name="mydate_year" id="id_mydate_year">
+                <option value="0">---</option>
+                <option value="2007">2007</option>
+                <option value="2008">2008</option>
+                <option value="2009">2009</option>
+                <option value="2010" selected="selected">2010</option>
+                <option value="2011">2011</option>
+                <option value="2012">2012</option>
+                <option value="2013">2013</option>
+                <option value="2014">2014</option>
+                <option value="2015">2015</option>
+                <option value="2016">2016</option>
+            </select>
+            """,
+        )
+
+        # Rendering a datetime value.
+        self.assertHTMLEqual(w.render('mydate', datetime.date(2010, 4, 15)), w.render('mydate', '2010-04-15'))
+
+        # Invalid dates should still render the failed date.
+        self.assertHTMLEqual(
+            w.render('mydate', '2010-02-31'),
+            """
+            <select name="mydate_month" id="id_mydate_month">
+                <option value="0">---</option>
+                <option value="1">January</option>
+                <option value="2" selected="selected">February</option>
+                <option value="3">March</option>
+                <option value="4">April</option>
+                <option value="5">May</option>
+                <option value="6">June</option>
+                <option value="7">July</option>
+                <option value="8">August</option>
+                <option value="9">September</option>
+                <option value="10">October</option>
+                <option value="11">November</option>
+                <option value="12">December</option>
+            </select>
+
+            <select name="mydate_day" id="id_mydate_day">
+                <option value="0">---</option>
+                <option value="1">1</option>
+                <option value="2">2</option>
+                <option value="3">3</option>
+                <option value="4">4</option>
+                <option value="5">5</option>
+                <option value="6">6</option>
+                <option value="7">7</option>
+                <option value="8">8</option>
+                <option value="9">9</option>
+                <option value="10">10</option>
+                <option value="11">11</option>
+                <option value="12">12</option>
+                <option value="13">13</option>
+                <option value="14">14</option>
+                <option value="15">15</option>
+                <option value="16">16</option>
+                <option value="17">17</option>
+                <option value="18">18</option>
+                <option value="19">19</option>
+                <option value="20">20</option>
+                <option value="21">21</option>
+                <option value="22">22</option>
+                <option value="23">23</option>
+                <option value="24">24</option>
+                <option value="25">25</option>
+                <option value="26">26</option>
+                <option value="27">27</option>
+                <option value="28">28</option>
+                <option value="29">29</option>
+                <option value="30">30</option>
+                <option value="31" selected="selected">31</option>
+            </select>
+
+            <select name="mydate_year" id="id_mydate_year">
+                <option value="0">---</option>
+                <option value="2007">2007</option>
+                <option value="2008">2008</option>
+                <option value="2009">2009</option>
+                <option value="2010" selected="selected">2010</option>
+                <option value="2011">2011</option>
+                <option value="2012">2012</option>
+                <option value="2013">2013</option>
+                <option value="2014">2014</option>
+                <option value="2015">2015</option>
+                <option value="2016">2016</option>
+            </select>
+            """,
+        )
+
+        # Rendering with a custom months dict.
+        w = SelectDateWidget(months=MONTHS_AP, years=('2013',))
+        self.assertHTMLEqual(
+            w.render('mydate', ''),
+            """
+            <select name="mydate_month" id="id_mydate_month">
+                <option value="0">---</option>
+                <option value="1">Jan.</option>
+                <option value="2">Feb.</option>
+                <option value="3">March</option>
+                <option value="4">April</option>
+                <option value="5">May</option>
+                <option value="6">June</option>
+                <option value="7">July</option>
+                <option value="8">Aug.</option>
+                <option value="9">Sept.</option>
+                <option value="10">Oct.</option>
+                <option value="11">Nov.</option>
+                <option value="12">Dec.</option>
+            </select>
+
+            <select name="mydate_day" id="id_mydate_day">
+                <option value="0">---</option>
+                <option value="1">1</option>
+                <option value="2">2</option>
+                <option value="3">3</option>
+                <option value="4">4</option>
+                <option value="5">5</option>
+                <option value="6">6</option>
+                <option value="7">7</option>
+                <option value="8">8</option>
+                <option value="9">9</option>
+                <option value="10">10</option>
+                <option value="11">11</option>
+                <option value="12">12</option>
+                <option value="13">13</option>
+                <option value="14">14</option>
+                <option value="15">15</option>
+                <option value="16">16</option>
+                <option value="17">17</option>
+                <option value="18">18</option>
+                <option value="19">19</option>
+                <option value="20">20</option>
+                <option value="21">21</option>
+                <option value="22">22</option>
+                <option value="23">23</option>
+                <option value="24">24</option>
+                <option value="25">25</option>
+                <option value="26">26</option>
+                <option value="27">27</option>
+                <option value="28">28</option>
+                <option value="29">29</option>
+                <option value="30">30</option>
+                <option value="31">31</option>
+            </select>
+
+            <select name="mydate_year" id="id_mydate_year">
+                <option value="0">---</option>
+                <option value="2013">2013</option>
+            </select>
+            """,
+        )
+
+        a = GetDate({'mydate_month': '4', 'mydate_day': '1', 'mydate_year': '2008'})
+        self.assertTrue(a.is_valid())
+        self.assertEqual(a.cleaned_data['mydate'], datetime.date(2008, 4, 1))
+
+        # As with any widget that implements get_value_from_datadict,
+        # we must be prepared to accept the input from the "as_hidden"
+        # rendering as well.
+
+        self.assertHTMLEqual(
+            a['mydate'].as_hidden(),
+            '<input type="hidden" name="mydate" value="2008-4-1" id="id_mydate" />',
+        )
+
+        b = GetDate({'mydate': '2008-4-1'})
+        self.assertTrue(b.is_valid())
+        self.assertEqual(b.cleaned_data['mydate'], datetime.date(2008, 4, 1))
+
+        # Invalid dates shouldn't be allowed
+        c = GetDate({'mydate_month': '2', 'mydate_day': '31', 'mydate_year': '2010'})
+        self.assertFalse(c.is_valid())
+        self.assertEqual(c.errors, {'mydate': ['Enter a valid date.']})
+
+        # label tag is correctly associated with month dropdown
+        d = GetDate({'mydate_month': '1', 'mydate_day': '1', 'mydate_year': '2010'})
+        self.assertIn('<label for="id_mydate_month">', d.as_p())
+
+    def test_selectdate_required(self):
+        class GetNotRequiredDate(Form):
+            mydate = DateField(widget=SelectDateWidget, required=False)
+
+        class GetRequiredDate(Form):
+            mydate = DateField(widget=SelectDateWidget, required=True)
+
+        self.assertFalse(GetNotRequiredDate().fields['mydate'].widget.is_required)
+        self.assertTrue(GetRequiredDate().fields['mydate'].widget.is_required)
+
+    def test_selectdate_empty_label(self):
+        w = SelectDateWidget(years=('2014',), empty_label='empty_label')
+
+        # Rendering the default state with empty_label setted as string.
+        self.assertInHTML('<option value="0">empty_label</option>', w.render('mydate', ''), count=3)
+
+        w = SelectDateWidget(years=('2014',), empty_label=('empty_year', 'empty_month', 'empty_day'))
+
+        # Rendering the default state with empty_label tuple.
+        self.assertHTMLEqual(
+            w.render('mydate', ''),
+            """
+            <select name="mydate_month" id="id_mydate_month">
+                <option value="0">empty_month</option>
+                <option value="1">January</option>
+                <option value="2">February</option>
+                <option value="3">March</option>
+                <option value="4">April</option>
+                <option value="5">May</option>
+                <option value="6">June</option>
+                <option value="7">July</option>
+                <option value="8">August</option>
+                <option value="9">September</option>
+                <option value="10">October</option>
+                <option value="11">November</option>
+                <option value="12">December</option>
+            </select>
+
+            <select name="mydate_day" id="id_mydate_day">
+                <option value="0">empty_day</option>
+                <option value="1">1</option>
+                <option value="2">2</option>
+                <option value="3">3</option>
+                <option value="4">4</option>
+                <option value="5">5</option>
+                <option value="6">6</option>
+                <option value="7">7</option>
+                <option value="8">8</option>
+                <option value="9">9</option>
+                <option value="10">10</option>
+                <option value="11">11</option>
+                <option value="12">12</option>
+                <option value="13">13</option>
+                <option value="14">14</option>
+                <option value="15">15</option>
+                <option value="16">16</option>
+                <option value="17">17</option>
+                <option value="18">18</option>
+                <option value="19">19</option>
+                <option value="20">20</option>
+                <option value="21">21</option>
+                <option value="22">22</option>
+                <option value="23">23</option>
+                <option value="24">24</option>
+                <option value="25">25</option>
+                <option value="26">26</option>
+                <option value="27">27</option>
+                <option value="28">28</option>
+                <option value="29">29</option>
+                <option value="30">30</option>
+                <option value="31">31</option>
+            </select>
+
+            <select name="mydate_year" id="id_mydate_year">
+                <option value="0">empty_year</option>
+                <option value="2014">2014</option>
+            </select>
+            """,
+        )
+
+        self.assertRaisesMessage(ValueError, 'empty_label list/tuple must have 3 elements.',
+            SelectDateWidget, years=('2014',), empty_label=('not enough', 'values'))
+
+    @override_settings(USE_L10N=True)
+    @translation.override('nl')
+    def test_l10n(self):
+        w = SelectDateWidget(years=('2007', '2008', '2009', '2010', '2011', '2012', '2013', '2014', '2015', '2016'))
+        self.assertEqual(
+            w.value_from_datadict({'date_year': '2010', 'date_month': '8', 'date_day': '13'}, {}, 'date'),
+            '13-08-2010',
+        )
+
+        self.assertHTMLEqual(
+            w.render('date', '13-08-2010'),
+            """
+            <select name="date_day" id="id_date_day">
+                <option value="0">---</option>
+                <option value="1">1</option>
+                <option value="2">2</option>
+                <option value="3">3</option>
+                <option value="4">4</option>
+                <option value="5">5</option>
+                <option value="6">6</option>
+                <option value="7">7</option>
+                <option value="8">8</option>
+                <option value="9">9</option>
+                <option value="10">10</option>
+                <option value="11">11</option>
+                <option value="12">12</option>
+                <option value="13" selected="selected">13</option>
+                <option value="14">14</option>
+                <option value="15">15</option>
+                <option value="16">16</option>
+                <option value="17">17</option>
+                <option value="18">18</option>
+                <option value="19">19</option>
+                <option value="20">20</option>
+                <option value="21">21</option>
+                <option value="22">22</option>
+                <option value="23">23</option>
+                <option value="24">24</option>
+                <option value="25">25</option>
+                <option value="26">26</option>
+                <option value="27">27</option>
+                <option value="28">28</option>
+                <option value="29">29</option>
+                <option value="30">30</option>
+                <option value="31">31</option>
+            </select>
+
+            <select name="date_month" id="id_date_month">
+                <option value="0">---</option>
+                <option value="1">januari</option>
+                <option value="2">februari</option>
+                <option value="3">maart</option>
+                <option value="4">april</option>
+                <option value="5">mei</option>
+                <option value="6">juni</option>
+                <option value="7">juli</option>
+                <option value="8" selected="selected">augustus</option>
+                <option value="9">september</option>
+                <option value="10">oktober</option>
+                <option value="11">november</option>
+                <option value="12">december</option>
+            </select>
+
+            <select name="date_year" id="id_date_year">
+                <option value="0">---</option>
+                <option value="2007">2007</option>
+                <option value="2008">2008</option>
+                <option value="2009">2009</option>
+                <option value="2010" selected="selected">2010</option>
+                <option value="2011">2011</option>
+                <option value="2012">2012</option>
+                <option value="2013">2013</option>
+                <option value="2014">2014</option>
+                <option value="2015">2015</option>
+                <option value="2016">2016</option>
+            </select>
+            """,
+        )
+
+        # Years before 1900 work
+        w = SelectDateWidget(years=('1899',))
+        self.assertEqual(
+            w.value_from_datadict({'date_year': '1899', 'date_month': '8', 'date_day': '13'}, {}, 'date'),
+            '13-08-1899',
+        )
+
+    @override_settings(USE_L10N=True)
+    @translation.override('nl')
+    def test_l10n_date_changed(self):
+        """
+        Ensure that DateField.has_changed() with SelectDateWidget works
+        correctly with a localized date format.
+        Refs #17165.
+        """
+        # With Field.show_hidden_initial=False -----------------------
+        b = GetDate({
+            'mydate_year': '2008',
+            'mydate_month': '4',
+            'mydate_day': '1',
+        }, initial={'mydate': datetime.date(2008, 4, 1)})
+        self.assertFalse(b.has_changed())
+
+        b = GetDate({
+            'mydate_year': '2008',
+            'mydate_month': '4',
+            'mydate_day': '2',
+        }, initial={'mydate': datetime.date(2008, 4, 1)})
+        self.assertTrue(b.has_changed())
+
+        # With Field.show_hidden_initial=True ------------------------
+        class GetDateShowHiddenInitial(Form):
+            mydate = DateField(widget=SelectDateWidget, show_hidden_initial=True)
+
+        b = GetDateShowHiddenInitial({
+            'mydate_year': '2008',
+            'mydate_month': '4',
+            'mydate_day': '1',
+            'initial-mydate': HiddenInput()._format_value(datetime.date(2008, 4, 1))
+        }, initial={'mydate': datetime.date(2008, 4, 1)})
+        self.assertFalse(b.has_changed())
+
+        b = GetDateShowHiddenInitial({
+            'mydate_year': '2008',
+            'mydate_month': '4',
+            'mydate_day': '22',
+            'initial-mydate': HiddenInput()._format_value(datetime.date(2008, 4, 1))
+        }, initial={'mydate': datetime.date(2008, 4, 1)})
+        self.assertTrue(b.has_changed())
+
+        b = GetDateShowHiddenInitial({
+            'mydate_year': '2008',
+            'mydate_month': '4',
+            'mydate_day': '22',
+            'initial-mydate': HiddenInput()._format_value(datetime.date(2008, 4, 1))
+        }, initial={'mydate': datetime.date(2008, 4, 22)})
+        self.assertTrue(b.has_changed())
+
+        b = GetDateShowHiddenInitial({
+            'mydate_year': '2008',
+            'mydate_month': '4',
+            'mydate_day': '22',
+            'initial-mydate': HiddenInput()._format_value(datetime.date(2008, 4, 22))
+        }, initial={'mydate': datetime.date(2008, 4, 1)})
+        self.assertFalse(b.has_changed())
+
+    @override_settings(USE_L10N=True)
+    @translation.override('nl')
+    def test_l10n_invalid_date_in(self):
+        # Invalid dates shouldn't be allowed
+        a = GetDate({'mydate_month': '2', 'mydate_day': '31', 'mydate_year': '2010'})
+        self.assertFalse(a.is_valid())
+        # 'Geef een geldige datum op.' = 'Enter a valid date.'
+        self.assertEqual(a.errors, {'mydate': ['Geef een geldige datum op.']})
+
+    @override_settings(USE_L10N=True)
+    @translation.override('nl')
+    def test_form_label_association(self):
+        # label tag is correctly associated with first rendered dropdown
+        a = GetDate({'mydate_month': '1', 'mydate_day': '1', 'mydate_year': '2010'})
+        self.assertIn('<label for="id_mydate_day">', a.as_p())
diff --git a/tests/utils_tests/test_encoding.py b/tests/utils_tests/test_encoding.py
index 3119b6467a..be2670854f 100644
--- a/tests/utils_tests/test_encoding.py
+++ b/tests/utils_tests/test_encoding.py
@@ -7,7 +7,7 @@ import datetime
 from django.utils import six
 from django.utils.encoding import (
     filepath_to_uri, force_bytes, force_text, escape_uri_path,
-    iri_to_uri, uri_to_iri,
+    iri_to_uri, uri_to_iri, smart_text,
 )
 from django.utils.http import urlquote_plus
 
@@ -42,13 +42,33 @@ class TestEncodingUtils(unittest.TestCase):
         today = datetime.date.today()
         self.assertEqual(force_bytes(today, strings_only=True), today)
 
-    def test_escape_uri_path(self):
-        self.assertEqual(
-            escape_uri_path('/;some/=awful/?path/:with/@lots/&of/+awful/chars'),
-            '/%3Bsome/%3Dawful/%3Fpath/:with/@lots/&of/+awful/chars'
-        )
-        self.assertEqual(escape_uri_path('/foo#bar'), '/foo%23bar')
-        self.assertEqual(escape_uri_path('/foo?bar'), '/foo%3Fbar')
+    def test_smart_text(self):
+        class Test:
+            if six.PY3:
+                def __str__(self):
+                    return 'ŠĐĆŽćžšđ'
+            else:
+                def __str__(self):
+                    return 'ŠĐĆŽćžšđ'.encode('utf-8')
+
+        class TestU:
+            if six.PY3:
+                def __str__(self):
+                    return 'ŠĐĆŽćžšđ'
+
+                def __bytes__(self):
+                    return b'Foo'
+            else:
+                def __str__(self):
+                    return b'Foo'
+
+                def __unicode__(self):
+                    return '\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111'
+
+        self.assertEqual(smart_text(Test()), '\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111')
+        self.assertEqual(smart_text(TestU()), '\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111')
+        self.assertEqual(smart_text(1), '1')
+        self.assertEqual(smart_text('foo'), 'foo')
 
 
 class TestRFC3987IEncodingUtils(unittest.TestCase):
@@ -114,3 +134,11 @@ class TestRFC3987IEncodingUtils(unittest.TestCase):
         for uri, iri in cases:
             self.assertEqual(iri_to_uri(uri_to_iri(uri)), uri)
             self.assertEqual(uri_to_iri(iri_to_uri(iri)), iri)
+
+    def test_escape_uri_path(self):
+        self.assertEqual(
+            escape_uri_path('/;some/=awful/?path/:with/@lots/&of/+awful/chars'),
+            '/%3Bsome/%3Dawful/%3Fpath/:with/@lots/&of/+awful/chars'
+        )
+        self.assertEqual(escape_uri_path('/foo#bar'), '/foo%23bar')
+        self.assertEqual(escape_uri_path('/foo?bar'), '/foo%3Fbar')