mirror of https://github.com/django/django.git
242 lines
8.1 KiB
Python
242 lines
8.1 KiB
Python
"""
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Tests for django.utils.
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"""
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from unittest import TestCase
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from django.utils import html, checksums
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from django.utils.functional import SimpleLazyObject
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import timesince
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import datastructures
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import dateformat
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import itercompat
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from decorators import DecoratorFromMiddlewareTests
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# We need this because "datastructures" uses sorted() and the tests are run in
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# the scope of this module.
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try:
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sorted
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except NameError:
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from django.utils.itercompat import sorted # For Python 2.3
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# Extra tests
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__test__ = {
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'timesince': timesince,
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'datastructures': datastructures,
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'dateformat': dateformat,
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'itercompat': itercompat,
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}
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class TestUtilsHtml(TestCase):
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def check_output(self, function, value, output=None):
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"""
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Check that function(value) equals output. If output is None,
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check that function(value) equals value.
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"""
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if output is None:
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output = value
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self.assertEqual(function(value), output)
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def test_escape(self):
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f = html.escape
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items = (
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('&','&'),
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('<', '<'),
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('>', '>'),
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('"', '"'),
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("'", '''),
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)
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# Substitution patterns for testing the above items.
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patterns = ("%s", "asdf%sfdsa", "%s1", "1%sb")
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for value, output in items:
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for pattern in patterns:
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self.check_output(f, pattern % value, pattern % output)
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# Check repeated values.
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self.check_output(f, value * 2, output * 2)
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# Verify it doesn't double replace &.
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self.check_output(f, '<&', '<&')
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def test_linebreaks(self):
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f = html.linebreaks
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items = (
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("para1\n\npara2\r\rpara3", "<p>para1</p>\n\n<p>para2</p>\n\n<p>para3</p>"),
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("para1\nsub1\rsub2\n\npara2", "<p>para1<br />sub1<br />sub2</p>\n\n<p>para2</p>"),
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("para1\r\n\r\npara2\rsub1\r\rpara4", "<p>para1</p>\n\n<p>para2<br />sub1</p>\n\n<p>para4</p>"),
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("para1\tmore\n\npara2", "<p>para1\tmore</p>\n\n<p>para2</p>"),
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)
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for value, output in items:
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self.check_output(f, value, output)
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def test_strip_tags(self):
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f = html.strip_tags
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items = (
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('<adf>a', 'a'),
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('</adf>a', 'a'),
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('<asdf><asdf>e', 'e'),
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('<f', '<f'),
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('</fe', '</fe'),
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('<x>b<y>', 'b'),
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)
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for value, output in items:
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self.check_output(f, value, output)
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def test_strip_spaces_between_tags(self):
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f = html.strip_spaces_between_tags
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# Strings that should come out untouched.
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items = (' <adf>', '<adf> ', ' </adf> ', ' <f> x</f>')
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for value in items:
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self.check_output(f, value)
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# Strings that have spaces to strip.
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items = (
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('<d> </d>', '<d></d>'),
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('<p>hello </p>\n<p> world</p>', '<p>hello </p><p> world</p>'),
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('\n<p>\t</p>\n<p> </p>\n', '\n<p></p><p></p>\n'),
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)
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for value, output in items:
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self.check_output(f, value, output)
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def test_strip_entities(self):
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f = html.strip_entities
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# Strings that should come out untouched.
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values = ("&", "&a", "&a", "a&#a")
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for value in values:
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self.check_output(f, value)
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# Valid entities that should be stripped from the patterns.
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entities = ("", "", "&a;", "&fdasdfasdfasdf;")
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patterns = (
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("asdf %(entity)s ", "asdf "),
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("%(entity)s%(entity)s", ""),
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("&%(entity)s%(entity)s", "&"),
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("%(entity)s3", "3"),
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)
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for entity in entities:
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for in_pattern, output in patterns:
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self.check_output(f, in_pattern % {'entity': entity}, output)
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def test_fix_ampersands(self):
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f = html.fix_ampersands
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# Strings without ampersands or with ampersands already encoded.
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values = ("a", "b", "&a;", "& &x; ", "asdf")
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patterns = (
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("%s", "%s"),
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("&%s", "&%s"),
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("&%s&", "&%s&"),
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)
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for value in values:
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for in_pattern, out_pattern in patterns:
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self.check_output(f, in_pattern % value, out_pattern % value)
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# Strings with ampersands that need encoding.
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items = (
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("&#;", "&#;"),
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("ͫ ;", "&#875 ;"),
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("abc;", "&#4abc;"),
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)
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for value, output in items:
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self.check_output(f, value, output)
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class TestUtilsChecksums(TestCase):
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def check_output(self, function, value, output=None):
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"""
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Check that function(value) equals output. If output is None,
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check that function(value) equals value.
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"""
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if output is None:
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output = value
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self.assertEqual(function(value), output)
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def test_luhn(self):
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f = checksums.luhn
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items = (
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(4111111111111111, True), ('4111111111111111', True),
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(4222222222222, True), (378734493671000, True),
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(5424000000000015, True), (5555555555554444, True),
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(1008, True), ('0000001008', True), ('000000001008', True),
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(4012888888881881, True), (1234567890123456789012345678909, True),
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(4111111111211111, False), (42222222222224, False),
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(100, False), ('100', False), ('0000100', False),
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('abc', False), (None, False), (object(), False),
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)
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for value, output in items:
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self.check_output(f, value, output)
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class _ComplexObject(object):
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def __init__(self, name):
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self.name = name
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def __eq__(self, other):
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return self.name == other.name
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def __hash__(self):
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return hash(self.name)
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def __str__(self):
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return "I am _ComplexObject(%r)" % self.name
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def __unicode__(self):
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return unicode(self.name)
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def __repr__(self):
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return "_ComplexObject(%r)" % self.name
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complex_object = lambda: _ComplexObject("joe")
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class TestUtilsSimpleLazyObject(TestCase):
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"""
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Tests for SimpleLazyObject
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"""
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# Note that concrete use cases for SimpleLazyObject are also found in the
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# auth context processor tests (unless the implementation of that function
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# is changed).
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def test_equality(self):
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self.assertEqual(complex_object(), SimpleLazyObject(complex_object))
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self.assertEqual(SimpleLazyObject(complex_object), complex_object())
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def test_hash(self):
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# hash() equality would not be true for many objects, but it should be
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# for _ComplexObject
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self.assertEqual(hash(complex_object()),
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hash(SimpleLazyObject(complex_object)))
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def test_repr(self):
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# For debugging, it will really confuse things if there is no clue that
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# SimpleLazyObject is actually a proxy object. So we don't
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# proxy __repr__
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self.assert_("SimpleLazyObject" in repr(SimpleLazyObject(complex_object)))
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def test_str(self):
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self.assertEqual("I am _ComplexObject('joe')", str(SimpleLazyObject(complex_object)))
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def test_unicode(self):
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self.assertEqual(u"joe", unicode(SimpleLazyObject(complex_object)))
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def test_class(self):
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# This is important for classes that use __class__ in things like
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# equality tests.
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self.assertEqual(_ComplexObject, SimpleLazyObject(complex_object).__class__)
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def test_deepcopy(self):
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import copy
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# Check that we *can* do deep copy, and that it returns the right
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# objects.
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# First, for an unevaluated SimpleLazyObject
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s = SimpleLazyObject(complex_object)
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assert s._wrapped is None
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s2 = copy.deepcopy(s)
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assert s._wrapped is None # something has gone wrong is s is evaluated
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self.assertEqual(s2, complex_object())
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# Second, for an evaluated SimpleLazyObject
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name = s.name # evaluate
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assert s._wrapped is not None
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s3 = copy.deepcopy(s)
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self.assertEqual(s3, complex_object())
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if __name__ == "__main__":
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import doctest
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doctest.testmod()
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