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225 lines
7.2 KiB
Python
225 lines
7.2 KiB
Python
from datetime import datetime
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from django.core.exceptions import ValidationError
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from django.forms import (
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CharField,
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Form,
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MultipleChoiceField,
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MultiValueField,
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MultiWidget,
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SelectMultiple,
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SplitDateTimeField,
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SplitDateTimeWidget,
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TextInput,
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)
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from django.test import SimpleTestCase
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beatles = (("J", "John"), ("P", "Paul"), ("G", "George"), ("R", "Ringo"))
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class PartiallyRequiredField(MultiValueField):
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def compress(self, data_list):
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return ",".join(data_list) if data_list else None
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class PartiallyRequiredForm(Form):
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f = PartiallyRequiredField(
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fields=(CharField(required=True), CharField(required=False)),
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required=True,
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require_all_fields=False,
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widget=MultiWidget(widgets=[TextInput(), TextInput()]),
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)
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class ComplexMultiWidget(MultiWidget):
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def __init__(self, attrs=None):
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widgets = (
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TextInput(),
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SelectMultiple(choices=beatles),
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SplitDateTimeWidget(),
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)
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super().__init__(widgets, attrs)
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def decompress(self, value):
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if value:
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data = value.split(",")
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return [
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data[0],
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list(data[1]),
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datetime.strptime(data[2], "%Y-%m-%d %H:%M:%S"),
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]
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return [None, None, None]
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class ComplexField(MultiValueField):
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def __init__(self, **kwargs):
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fields = (
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CharField(),
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MultipleChoiceField(choices=beatles),
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SplitDateTimeField(),
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)
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super().__init__(fields, **kwargs)
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def compress(self, data_list):
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if data_list:
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return "%s,%s,%s" % (data_list[0], "".join(data_list[1]), data_list[2])
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return None
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class ComplexFieldForm(Form):
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field1 = ComplexField(widget=ComplexMultiWidget())
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class MultiValueFieldTest(SimpleTestCase):
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@classmethod
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def setUpClass(cls):
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cls.field = ComplexField(widget=ComplexMultiWidget())
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super().setUpClass()
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def test_clean(self):
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self.assertEqual(
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self.field.clean(["some text", ["J", "P"], ["2007-04-25", "6:24:00"]]),
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"some text,JP,2007-04-25 06:24:00",
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)
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def test_clean_disabled_multivalue(self):
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class ComplexFieldForm(Form):
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f = ComplexField(disabled=True, widget=ComplexMultiWidget)
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inputs = (
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"some text,JP,2007-04-25 06:24:00",
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["some text", ["J", "P"], ["2007-04-25", "6:24:00"]],
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)
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for data in inputs:
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with self.subTest(data=data):
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form = ComplexFieldForm({}, initial={"f": data})
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form.full_clean()
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self.assertEqual(form.errors, {})
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self.assertEqual(form.cleaned_data, {"f": inputs[0]})
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def test_bad_choice(self):
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msg = "'Select a valid choice. X is not one of the available choices.'"
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with self.assertRaisesMessage(ValidationError, msg):
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self.field.clean(["some text", ["X"], ["2007-04-25", "6:24:00"]])
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def test_no_value(self):
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"""
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If insufficient data is provided, None is substituted.
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"""
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msg = "'This field is required.'"
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with self.assertRaisesMessage(ValidationError, msg):
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self.field.clean(["some text", ["JP"]])
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def test_has_changed_no_initial(self):
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self.assertTrue(
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self.field.has_changed(
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None, ["some text", ["J", "P"], ["2007-04-25", "6:24:00"]]
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)
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)
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def test_has_changed_same(self):
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self.assertFalse(
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self.field.has_changed(
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"some text,JP,2007-04-25 06:24:00",
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["some text", ["J", "P"], ["2007-04-25", "6:24:00"]],
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)
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)
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def test_has_changed_first_widget(self):
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"""
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Test when the first widget's data has changed.
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"""
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self.assertTrue(
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self.field.has_changed(
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"some text,JP,2007-04-25 06:24:00",
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["other text", ["J", "P"], ["2007-04-25", "6:24:00"]],
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)
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)
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def test_has_changed_last_widget(self):
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"""
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Test when the last widget's data has changed. This ensures that it is
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not short circuiting while testing the widgets.
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"""
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self.assertTrue(
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self.field.has_changed(
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"some text,JP,2007-04-25 06:24:00",
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["some text", ["J", "P"], ["2009-04-25", "11:44:00"]],
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)
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)
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def test_disabled_has_changed(self):
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f = MultiValueField(fields=(CharField(), CharField()), disabled=True)
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self.assertIs(f.has_changed(["x", "x"], ["y", "y"]), False)
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def test_form_as_table(self):
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form = ComplexFieldForm()
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self.assertHTMLEqual(
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form.as_table(),
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"""
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<tr><th><label>Field1:</label></th>
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<td><input type="text" name="field1_0" id="id_field1_0" required>
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<select multiple name="field1_1" id="id_field1_1" required>
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<option value="J">John</option>
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<option value="P">Paul</option>
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<option value="G">George</option>
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<option value="R">Ringo</option>
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</select>
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<input type="text" name="field1_2_0" id="id_field1_2_0" required>
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<input type="text" name="field1_2_1" id="id_field1_2_1" required></td></tr>
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""",
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)
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def test_form_as_table_data(self):
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form = ComplexFieldForm(
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{
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"field1_0": "some text",
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"field1_1": ["J", "P"],
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"field1_2_0": "2007-04-25",
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"field1_2_1": "06:24:00",
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}
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)
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self.assertHTMLEqual(
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form.as_table(),
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"""
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<tr><th><label>Field1:</label></th>
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<td><input type="text" name="field1_0" value="some text" id="id_field1_0"
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required>
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<select multiple name="field1_1" id="id_field1_1" required>
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<option value="J" selected>John</option>
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<option value="P" selected>Paul</option>
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<option value="G">George</option>
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<option value="R">Ringo</option>
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</select>
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<input type="text" name="field1_2_0" value="2007-04-25" id="id_field1_2_0"
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required>
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<input type="text" name="field1_2_1" value="06:24:00" id="id_field1_2_1"
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required></td></tr>
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""",
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)
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def test_form_cleaned_data(self):
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form = ComplexFieldForm(
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{
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"field1_0": "some text",
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"field1_1": ["J", "P"],
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"field1_2_0": "2007-04-25",
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"field1_2_1": "06:24:00",
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}
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)
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form.is_valid()
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self.assertEqual(
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form.cleaned_data["field1"], "some text,JP,2007-04-25 06:24:00"
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)
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def test_render_required_attributes(self):
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form = PartiallyRequiredForm({"f_0": "Hello", "f_1": ""})
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self.assertTrue(form.is_valid())
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self.assertInHTML(
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'<input type="text" name="f_0" value="Hello" required id="id_f_0">',
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form.as_p(),
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)
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self.assertInHTML('<input type="text" name="f_1" id="id_f_1">', form.as_p())
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form = PartiallyRequiredForm({"f_0": "", "f_1": ""})
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self.assertFalse(form.is_valid())
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