176 lines
9.2 KiB
Python
176 lines
9.2 KiB
Python
from __future__ import with_statement
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from django import template
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from django.utils.unittest import TestCase
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from templatetags import custom
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class CustomFilterTests(TestCase):
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def test_filter(self):
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t = template.Template("{% load custom %}{{ string|trim:5 }}")
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self.assertEqual(
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t.render(template.Context({"string": "abcdefghijklmnopqrstuvwxyz"})),
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u"abcde"
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)
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class CustomTagTests(TestCase):
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def verify_tag(self, tag, name):
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self.assertEqual(tag.__name__, name)
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self.assertEqual(tag.__doc__, 'Expected %s __doc__' % name)
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self.assertEqual(tag.__dict__['anything'], 'Expected %s __dict__' % name)
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def test_simple_tags(self):
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c = template.Context({'value': 42})
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t = template.Template('{% load custom %}{% no_params %}')
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self.assertEqual(t.render(c), u'no_params - Expected result')
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t = template.Template('{% load custom %}{% one_param 37 %}')
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self.assertEqual(t.render(c), u'one_param - Expected result: 37')
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t = template.Template('{% load custom %}{% explicit_no_context 37 %}')
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self.assertEqual(t.render(c), u'explicit_no_context - Expected result: 37')
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t = template.Template('{% load custom %}{% no_params_with_context %}')
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self.assertEqual(t.render(c), u'no_params_with_context - Expected result (context value: 42)')
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t = template.Template('{% load custom %}{% params_and_context 37 %}')
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self.assertEqual(t.render(c), u'params_and_context - Expected result (context value: 42): 37')
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def test_simple_tag_registration(self):
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# Test that the decorators preserve the decorated function's docstring, name and attributes.
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self.verify_tag(custom.no_params, 'no_params')
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self.verify_tag(custom.one_param, 'one_param')
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self.verify_tag(custom.explicit_no_context, 'explicit_no_context')
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self.verify_tag(custom.no_params_with_context, 'no_params_with_context')
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self.verify_tag(custom.params_and_context, 'params_and_context')
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def test_simple_tag_missing_context(self):
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# That the 'context' parameter must be present when takes_context is True
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def a_simple_tag_without_parameters(arg):
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"""Expected __doc__"""
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return "Expected result"
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register = template.Library()
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decorator = register.simple_tag(takes_context=True)
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self.assertRaises(template.TemplateSyntaxError, decorator, a_simple_tag_without_parameters)
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def test_inclusion_tags(self):
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c = template.Context({'value': 42})
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t = template.Template('{% load custom %}{% inclusion_no_params %}')
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self.assertEqual(t.render(c), u'inclusion_no_params - Expected result\n')
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t = template.Template('{% load custom %}{% inclusion_one_param 37 %}')
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self.assertEqual(t.render(c), u'inclusion_one_param - Expected result: 37\n')
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t = template.Template('{% load custom %}{% inclusion_explicit_no_context 37 %}')
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self.assertEqual(t.render(c), u'inclusion_explicit_no_context - Expected result: 37\n')
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t = template.Template('{% load custom %}{% inclusion_no_params_with_context %}')
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self.assertEqual(t.render(c), u'inclusion_no_params_with_context - Expected result (context value: 42)\n')
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t = template.Template('{% load custom %}{% inclusion_params_and_context 37 %}')
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self.assertEqual(t.render(c), u'inclusion_params_and_context - Expected result (context value: 42): 37\n')
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def test_inclusion_tags_from_template(self):
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c = template.Context({'value': 42})
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t = template.Template('{% load custom %}{% inclusion_no_params_from_template %}')
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self.assertEqual(t.render(c), u'inclusion_no_params_from_template - Expected result\n')
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t = template.Template('{% load custom %}{% inclusion_one_param_from_template 37 %}')
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self.assertEqual(t.render(c), u'inclusion_one_param_from_template - Expected result: 37\n')
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t = template.Template('{% load custom %}{% inclusion_explicit_no_context_from_template 37 %}')
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self.assertEqual(t.render(c), u'inclusion_explicit_no_context_from_template - Expected result: 37\n')
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t = template.Template('{% load custom %}{% inclusion_no_params_with_context_from_template %}')
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self.assertEqual(t.render(c), u'inclusion_no_params_with_context_from_template - Expected result (context value: 42)\n')
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t = template.Template('{% load custom %}{% inclusion_params_and_context_from_template 37 %}')
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self.assertEqual(t.render(c), u'inclusion_params_and_context_from_template - Expected result (context value: 42): 37\n')
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def test_inclusion_tag_registration(self):
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# Test that the decorators preserve the decorated function's docstring, name and attributes.
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self.verify_tag(custom.inclusion_no_params, 'inclusion_no_params')
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self.verify_tag(custom.inclusion_one_param, 'inclusion_one_param')
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self.verify_tag(custom.inclusion_explicit_no_context, 'inclusion_explicit_no_context')
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self.verify_tag(custom.inclusion_no_params_with_context, 'inclusion_no_params_with_context')
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self.verify_tag(custom.inclusion_params_and_context, 'inclusion_params_and_context')
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def test_15070_current_app(self):
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"""
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Test that inclusion tag passes down `current_app` of context to the
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Context of the included/rendered template as well.
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"""
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c = template.Context({})
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t = template.Template('{% load custom %}{% inclusion_tag_current_app %}')
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self.assertEqual(t.render(c).strip(), u'None')
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c.current_app = 'advanced'
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self.assertEqual(t.render(c).strip(), u'advanced')
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def test_15070_use_l10n(self):
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"""
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Test that inclusion tag passes down `use_l10n` of context to the
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Context of the included/rendered template as well.
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"""
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c = template.Context({})
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t = template.Template('{% load custom %}{% inclusion_tag_use_l10n %}')
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self.assertEqual(t.render(c).strip(), u'None')
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c.use_l10n = True
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self.assertEqual(t.render(c).strip(), u'True')
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def test_assignment_tags(self):
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c = template.Context({'value': 42})
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t = template.Template('{% load custom %}{% assignment_no_params as var %}The result is: {{ var }}')
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self.assertEqual(t.render(c), u'The result is: assignment_no_params - Expected result')
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t = template.Template('{% load custom %}{% assignment_one_param 37 as var %}The result is: {{ var }}')
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self.assertEqual(t.render(c), u'The result is: assignment_one_param - Expected result: 37')
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t = template.Template('{% load custom %}{% assignment_explicit_no_context 37 as var %}The result is: {{ var }}')
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self.assertEqual(t.render(c), u'The result is: assignment_explicit_no_context - Expected result: 37')
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t = template.Template('{% load custom %}{% assignment_no_params_with_context as var %}The result is: {{ var }}')
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self.assertEqual(t.render(c), u'The result is: assignment_no_params_with_context - Expected result (context value: 42)')
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t = template.Template('{% load custom %}{% assignment_params_and_context 37 as var %}The result is: {{ var }}')
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self.assertEqual(t.render(c), u'The result is: assignment_params_and_context - Expected result (context value: 42): 37')
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self.assertRaisesRegexp(template.TemplateSyntaxError,
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"'assignment_one_param' tag takes at least 2 arguments and the second last argument must be 'as'",
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template.Template, '{% load custom %}{% assignment_one_param 37 %}The result is: {{ var }}')
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self.assertRaisesRegexp(template.TemplateSyntaxError,
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"'assignment_one_param' tag takes at least 2 arguments and the second last argument must be 'as'",
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template.Template, '{% load custom %}{% assignment_one_param 37 as %}The result is: {{ var }}')
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self.assertRaisesRegexp(template.TemplateSyntaxError,
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"'assignment_one_param' tag takes at least 2 arguments and the second last argument must be 'as'",
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template.Template, '{% load custom %}{% assignment_one_param 37 ass var %}The result is: {{ var }}')
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def test_assignment_tag_registration(self):
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# Test that the decorators preserve the decorated function's docstring, name and attributes.
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self.verify_tag(custom.assignment_no_params, 'assignment_no_params')
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self.verify_tag(custom.assignment_one_param, 'assignment_one_param')
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self.verify_tag(custom.assignment_explicit_no_context, 'assignment_explicit_no_context')
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self.verify_tag(custom.assignment_no_params_with_context, 'assignment_no_params_with_context')
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self.verify_tag(custom.assignment_params_and_context, 'assignment_params_and_context')
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def test_assignment_tag_missing_context(self):
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# That the 'context' parameter must be present when takes_context is True
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def an_assignment_tag_without_parameters(arg):
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"""Expected __doc__"""
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return "Expected result"
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register = template.Library()
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decorator = register.assignment_tag(takes_context=True)
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self.assertRaisesRegexp(template.TemplateSyntaxError,
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"Any tag function decorated with takes_context=True must have a first argument of 'context'",
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decorator, an_assignment_tag_without_parameters)
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