from __future__ import unicode_literals from unittest import TestCase import warnings from django import template from django.utils import six from django.utils.deprecation import RemovedInDjango20Warning from .templatetags import custom class CustomFilterTests(TestCase): def test_filter(self): t = template.Template("{% load custom %}{{ string|trim:5 }}") self.assertEqual( t.render(template.Context({"string": "abcdefghijklmnopqrstuvwxyz"})), "abcde" ) class CustomTagTests(TestCase): def verify_tag(self, tag, name): self.assertEqual(tag.__name__, name) self.assertEqual(tag.__doc__, 'Expected %s __doc__' % name) self.assertEqual(tag.__dict__['anything'], 'Expected %s __dict__' % name) def test_simple_tags(self): c = template.Context({'value': 42}) t = template.Template('{% load custom %}{% no_params %}') self.assertEqual(t.render(c), 'no_params - Expected result') t = template.Template('{% load custom %}{% one_param 37 %}') self.assertEqual(t.render(c), 'one_param - Expected result: 37') t = template.Template('{% load custom %}{% explicit_no_context 37 %}') self.assertEqual(t.render(c), 'explicit_no_context - Expected result: 37') t = template.Template('{% load custom %}{% no_params_with_context %}') self.assertEqual(t.render(c), 'no_params_with_context - Expected result (context value: 42)') t = template.Template('{% load custom %}{% params_and_context 37 %}') self.assertEqual(t.render(c), 'params_and_context - Expected result (context value: 42): 37') t = template.Template('{% load custom %}{% simple_two_params 37 42 %}') self.assertEqual(t.render(c), 'simple_two_params - Expected result: 37, 42') t = template.Template('{% load custom %}{% simple_one_default 37 %}') self.assertEqual(t.render(c), 'simple_one_default - Expected result: 37, hi') t = template.Template('{% load custom %}{% simple_one_default 37 two="hello" %}') self.assertEqual(t.render(c), 'simple_one_default - Expected result: 37, hello') t = template.Template('{% load custom %}{% simple_one_default one=99 two="hello" %}') self.assertEqual(t.render(c), 'simple_one_default - Expected result: 99, hello') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'simple_one_default' received unexpected keyword argument 'three'", template.Template, '{% load custom %}{% simple_one_default 99 two="hello" three="foo" %}') t = template.Template('{% load custom %}{% simple_one_default 37 42 %}') self.assertEqual(t.render(c), 'simple_one_default - Expected result: 37, 42') t = template.Template('{% load custom %}{% simple_unlimited_args 37 %}') self.assertEqual(t.render(c), 'simple_unlimited_args - Expected result: 37, hi') t = template.Template('{% load custom %}{% simple_unlimited_args 37 42 56 89 %}') self.assertEqual(t.render(c), 'simple_unlimited_args - Expected result: 37, 42, 56, 89') t = template.Template('{% load custom %}{% simple_only_unlimited_args %}') self.assertEqual(t.render(c), 'simple_only_unlimited_args - Expected result: ') t = template.Template('{% load custom %}{% simple_only_unlimited_args 37 42 56 89 %}') self.assertEqual(t.render(c), 'simple_only_unlimited_args - Expected result: 37, 42, 56, 89') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'simple_two_params' received too many positional arguments", template.Template, '{% load custom %}{% simple_two_params 37 42 56 %}') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'simple_one_default' received too many positional arguments", template.Template, '{% load custom %}{% simple_one_default 37 42 56 %}') t = template.Template('{% load custom %}{% simple_unlimited_args_kwargs 37 40|add:2 56 eggs="scrambled" four=1|add:3 %}') self.assertEqual(t.render(c), 'simple_unlimited_args_kwargs - Expected result: 37, 42, 56 / eggs=scrambled, four=4') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'simple_unlimited_args_kwargs' received some positional argument\(s\) after some keyword argument\(s\)", template.Template, '{% load custom %}{% simple_unlimited_args_kwargs 37 40|add:2 eggs="scrambled" 56 four=1|add:3 %}') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'simple_unlimited_args_kwargs' received multiple values for keyword argument 'eggs'", template.Template, '{% load custom %}{% simple_unlimited_args_kwargs 37 eggs="scrambled" eggs="scrambled" %}') def test_simple_tag_registration(self): # Test that the decorators preserve the decorated function's docstring, name and attributes. self.verify_tag(custom.no_params, 'no_params') self.verify_tag(custom.one_param, 'one_param') self.verify_tag(custom.explicit_no_context, 'explicit_no_context') self.verify_tag(custom.no_params_with_context, 'no_params_with_context') self.verify_tag(custom.params_and_context, 'params_and_context') self.verify_tag(custom.simple_unlimited_args_kwargs, 'simple_unlimited_args_kwargs') self.verify_tag(custom.simple_tag_without_context_parameter, 'simple_tag_without_context_parameter') def test_simple_tag_missing_context(self): # The 'context' parameter must be present when takes_context is True six.assertRaisesRegex(self, template.TemplateSyntaxError, "'simple_tag_without_context_parameter' is decorated with takes_context=True so it must have a first argument of 'context'", template.Template, '{% load custom %}{% simple_tag_without_context_parameter 123 %}') def test_inclusion_tags(self): c = template.Context({'value': 42}) t = template.Template('{% load custom %}{% inclusion_no_params %}') self.assertEqual(t.render(c), 'inclusion_no_params - Expected result\n') t = template.Template('{% load custom %}{% inclusion_one_param 37 %}') self.assertEqual(t.render(c), 'inclusion_one_param - Expected result: 37\n') t = template.Template('{% load custom %}{% inclusion_explicit_no_context 37 %}') self.assertEqual(t.render(c), 'inclusion_explicit_no_context - Expected result: 37\n') t = template.Template('{% load custom %}{% inclusion_no_params_with_context %}') self.assertEqual(t.render(c), 'inclusion_no_params_with_context - Expected result (context value: 42)\n') t = template.Template('{% load custom %}{% inclusion_params_and_context 37 %}') self.assertEqual(t.render(c), 'inclusion_params_and_context - Expected result (context value: 42): 37\n') t = template.Template('{% load custom %}{% inclusion_two_params 37 42 %}') self.assertEqual(t.render(c), 'inclusion_two_params - Expected result: 37, 42\n') t = template.Template('{% load custom %}{% inclusion_one_default 37 %}') self.assertEqual(t.render(c), 'inclusion_one_default - Expected result: 37, hi\n') t = template.Template('{% load custom %}{% inclusion_one_default 37 two="hello" %}') self.assertEqual(t.render(c), 'inclusion_one_default - Expected result: 37, hello\n') t = template.Template('{% load custom %}{% inclusion_one_default one=99 two="hello" %}') self.assertEqual(t.render(c), 'inclusion_one_default - Expected result: 99, hello\n') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'inclusion_one_default' received unexpected keyword argument 'three'", template.Template, '{% load custom %}{% inclusion_one_default 99 two="hello" three="foo" %}') t = template.Template('{% load custom %}{% inclusion_one_default 37 42 %}') self.assertEqual(t.render(c), 'inclusion_one_default - Expected result: 37, 42\n') t = template.Template('{% load custom %}{% inclusion_unlimited_args 37 %}') self.assertEqual(t.render(c), 'inclusion_unlimited_args - Expected result: 37, hi\n') t = template.Template('{% load custom %}{% inclusion_unlimited_args 37 42 56 89 %}') self.assertEqual(t.render(c), 'inclusion_unlimited_args - Expected result: 37, 42, 56, 89\n') t = template.Template('{% load custom %}{% inclusion_only_unlimited_args %}') self.assertEqual(t.render(c), 'inclusion_only_unlimited_args - Expected result: \n') t = template.Template('{% load custom %}{% inclusion_only_unlimited_args 37 42 56 89 %}') self.assertEqual(t.render(c), 'inclusion_only_unlimited_args - Expected result: 37, 42, 56, 89\n') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'inclusion_two_params' received too many positional arguments", template.Template, '{% load custom %}{% inclusion_two_params 37 42 56 %}') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'inclusion_one_default' received too many positional arguments", template.Template, '{% load custom %}{% inclusion_one_default 37 42 56 %}') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'inclusion_one_default' did not receive value\(s\) for the argument\(s\): 'one'", template.Template, '{% load custom %}{% inclusion_one_default %}') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'inclusion_unlimited_args' did not receive value\(s\) for the argument\(s\): 'one'", template.Template, '{% load custom %}{% inclusion_unlimited_args %}') t = template.Template('{% load custom %}{% inclusion_unlimited_args_kwargs 37 40|add:2 56 eggs="scrambled" four=1|add:3 %}') self.assertEqual(t.render(c), 'inclusion_unlimited_args_kwargs - Expected result: 37, 42, 56 / eggs=scrambled, four=4\n') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'inclusion_unlimited_args_kwargs' received some positional argument\(s\) after some keyword argument\(s\)", template.Template, '{% load custom %}{% inclusion_unlimited_args_kwargs 37 40|add:2 eggs="scrambled" 56 four=1|add:3 %}') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'inclusion_unlimited_args_kwargs' received multiple values for keyword argument 'eggs'", template.Template, '{% load custom %}{% inclusion_unlimited_args_kwargs 37 eggs="scrambled" eggs="scrambled" %}') def test_include_tag_missing_context(self): # The 'context' parameter must be present when takes_context is True six.assertRaisesRegex(self, template.TemplateSyntaxError, "'inclusion_tag_without_context_parameter' is decorated with takes_context=True so it must have a first argument of 'context'", template.Template, '{% load custom %}{% inclusion_tag_without_context_parameter 123 %}') def test_inclusion_tags_from_template(self): c = template.Context({'value': 42}) t = template.Template('{% load custom %}{% inclusion_no_params_from_template %}') self.assertEqual(t.render(c), 'inclusion_no_params_from_template - Expected result\n') t = template.Template('{% load custom %}{% inclusion_one_param_from_template 37 %}') self.assertEqual(t.render(c), 'inclusion_one_param_from_template - Expected result: 37\n') t = template.Template('{% load custom %}{% inclusion_explicit_no_context_from_template 37 %}') self.assertEqual(t.render(c), 'inclusion_explicit_no_context_from_template - Expected result: 37\n') t = template.Template('{% load custom %}{% inclusion_no_params_with_context_from_template %}') self.assertEqual(t.render(c), 'inclusion_no_params_with_context_from_template - Expected result (context value: 42)\n') t = template.Template('{% load custom %}{% inclusion_params_and_context_from_template 37 %}') self.assertEqual(t.render(c), 'inclusion_params_and_context_from_template - Expected result (context value: 42): 37\n') t = template.Template('{% load custom %}{% inclusion_two_params_from_template 37 42 %}') self.assertEqual(t.render(c), 'inclusion_two_params_from_template - Expected result: 37, 42\n') t = template.Template('{% load custom %}{% inclusion_one_default_from_template 37 %}') self.assertEqual(t.render(c), 'inclusion_one_default_from_template - Expected result: 37, hi\n') t = template.Template('{% load custom %}{% inclusion_one_default_from_template 37 42 %}') self.assertEqual(t.render(c), 'inclusion_one_default_from_template - Expected result: 37, 42\n') t = template.Template('{% load custom %}{% inclusion_unlimited_args_from_template 37 %}') self.assertEqual(t.render(c), 'inclusion_unlimited_args_from_template - Expected result: 37, hi\n') t = template.Template('{% load custom %}{% inclusion_unlimited_args_from_template 37 42 56 89 %}') self.assertEqual(t.render(c), 'inclusion_unlimited_args_from_template - Expected result: 37, 42, 56, 89\n') t = template.Template('{% load custom %}{% inclusion_only_unlimited_args_from_template %}') self.assertEqual(t.render(c), 'inclusion_only_unlimited_args_from_template - Expected result: \n') t = template.Template('{% load custom %}{% inclusion_only_unlimited_args_from_template 37 42 56 89 %}') self.assertEqual(t.render(c), 'inclusion_only_unlimited_args_from_template - Expected result: 37, 42, 56, 89\n') def test_inclusion_tag_registration(self): # Test that the decorators preserve the decorated function's docstring, name and attributes. self.verify_tag(custom.inclusion_no_params, 'inclusion_no_params') self.verify_tag(custom.inclusion_one_param, 'inclusion_one_param') self.verify_tag(custom.inclusion_explicit_no_context, 'inclusion_explicit_no_context') self.verify_tag(custom.inclusion_no_params_with_context, 'inclusion_no_params_with_context') self.verify_tag(custom.inclusion_params_and_context, 'inclusion_params_and_context') self.verify_tag(custom.inclusion_two_params, 'inclusion_two_params') self.verify_tag(custom.inclusion_one_default, 'inclusion_one_default') self.verify_tag(custom.inclusion_unlimited_args, 'inclusion_unlimited_args') self.verify_tag(custom.inclusion_only_unlimited_args, 'inclusion_only_unlimited_args') self.verify_tag(custom.inclusion_tag_without_context_parameter, 'inclusion_tag_without_context_parameter') self.verify_tag(custom.inclusion_tag_use_l10n, 'inclusion_tag_use_l10n') self.verify_tag(custom.inclusion_tag_current_app, 'inclusion_tag_current_app') self.verify_tag(custom.inclusion_unlimited_args_kwargs, 'inclusion_unlimited_args_kwargs') def test_15070_current_app(self): """ Test that inclusion tag passes down `current_app` of context to the Context of the included/rendered template as well. """ c = template.Context({}) t = template.Template('{% load custom %}{% inclusion_tag_current_app %}') self.assertEqual(t.render(c).strip(), 'None') with warnings.catch_warnings(): warnings.filterwarnings("ignore", category=RemovedInDjango20Warning) c = template.Context({}, current_app='advanced') self.assertEqual(t.render(c).strip(), 'advanced') def test_15070_use_l10n(self): """ Test that inclusion tag passes down `use_l10n` of context to the Context of the included/rendered template as well. """ c = template.Context({}) t = template.Template('{% load custom %}{% inclusion_tag_use_l10n %}') self.assertEqual(t.render(c).strip(), 'None') c.use_l10n = True self.assertEqual(t.render(c).strip(), 'True') def test_assignment_tags(self): c = template.Context({'value': 42}) t = template.Template('{% load custom %}{% assignment_no_params as var %}The result is: {{ var }}') self.assertEqual(t.render(c), 'The result is: assignment_no_params - Expected result') t = template.Template('{% load custom %}{% assignment_one_param 37 as var %}The result is: {{ var }}') self.assertEqual(t.render(c), 'The result is: assignment_one_param - Expected result: 37') t = template.Template('{% load custom %}{% assignment_explicit_no_context 37 as var %}The result is: {{ var }}') self.assertEqual(t.render(c), 'The result is: assignment_explicit_no_context - Expected result: 37') t = template.Template('{% load custom %}{% assignment_no_params_with_context as var %}The result is: {{ var }}') self.assertEqual(t.render(c), 'The result is: assignment_no_params_with_context - Expected result (context value: 42)') t = template.Template('{% load custom %}{% assignment_params_and_context 37 as var %}The result is: {{ var }}') self.assertEqual(t.render(c), 'The result is: assignment_params_and_context - Expected result (context value: 42): 37') t = template.Template('{% load custom %}{% assignment_two_params 37 42 as var %}The result is: {{ var }}') self.assertEqual(t.render(c), 'The result is: assignment_two_params - Expected result: 37, 42') t = template.Template('{% load custom %}{% assignment_one_default 37 as var %}The result is: {{ var }}') self.assertEqual(t.render(c), 'The result is: assignment_one_default - Expected result: 37, hi') t = template.Template('{% load custom %}{% assignment_one_default 37 two="hello" as var %}The result is: {{ var }}') self.assertEqual(t.render(c), 'The result is: assignment_one_default - Expected result: 37, hello') t = template.Template('{% load custom %}{% assignment_one_default one=99 two="hello" as var %}The result is: {{ var }}') self.assertEqual(t.render(c), 'The result is: assignment_one_default - Expected result: 99, hello') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'assignment_one_default' received unexpected keyword argument 'three'", template.Template, '{% load custom %}{% assignment_one_default 99 two="hello" three="foo" as var %}') t = template.Template('{% load custom %}{% assignment_one_default 37 42 as var %}The result is: {{ var }}') self.assertEqual(t.render(c), 'The result is: assignment_one_default - Expected result: 37, 42') t = template.Template('{% load custom %}{% assignment_unlimited_args 37 as var %}The result is: {{ var }}') self.assertEqual(t.render(c), 'The result is: assignment_unlimited_args - Expected result: 37, hi') t = template.Template('{% load custom %}{% assignment_unlimited_args 37 42 56 89 as var %}The result is: {{ var }}') self.assertEqual(t.render(c), 'The result is: assignment_unlimited_args - Expected result: 37, 42, 56, 89') t = template.Template('{% load custom %}{% assignment_only_unlimited_args as var %}The result is: {{ var }}') self.assertEqual(t.render(c), 'The result is: assignment_only_unlimited_args - Expected result: ') t = template.Template('{% load custom %}{% assignment_only_unlimited_args 37 42 56 89 as var %}The result is: {{ var }}') self.assertEqual(t.render(c), 'The result is: assignment_only_unlimited_args - Expected result: 37, 42, 56, 89') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'assignment_one_param' tag takes at least 2 arguments and the second last argument must be 'as'", template.Template, '{% load custom %}{% assignment_one_param 37 %}The result is: {{ var }}') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'assignment_one_param' tag takes at least 2 arguments and the second last argument must be 'as'", template.Template, '{% load custom %}{% assignment_one_param 37 as %}The result is: {{ var }}') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'assignment_one_param' tag takes at least 2 arguments and the second last argument must be 'as'", template.Template, '{% load custom %}{% assignment_one_param 37 ass var %}The result is: {{ var }}') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'assignment_two_params' received too many positional arguments", template.Template, '{% load custom %}{% assignment_two_params 37 42 56 as var %}The result is: {{ var }}') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'assignment_one_default' received too many positional arguments", template.Template, '{% load custom %}{% assignment_one_default 37 42 56 as var %}The result is: {{ var }}') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'assignment_one_default' did not receive value\(s\) for the argument\(s\): 'one'", template.Template, '{% load custom %}{% assignment_one_default as var %}The result is: {{ var }}') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'assignment_unlimited_args' did not receive value\(s\) for the argument\(s\): 'one'", template.Template, '{% load custom %}{% assignment_unlimited_args as var %}The result is: {{ var }}') t = template.Template('{% load custom %}{% assignment_unlimited_args_kwargs 37 40|add:2 56 eggs="scrambled" four=1|add:3 as var %}The result is: {{ var }}') self.assertEqual(t.render(c), 'The result is: assignment_unlimited_args_kwargs - Expected result: 37, 42, 56 / eggs=scrambled, four=4') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'assignment_unlimited_args_kwargs' received some positional argument\(s\) after some keyword argument\(s\)", template.Template, '{% load custom %}{% assignment_unlimited_args_kwargs 37 40|add:2 eggs="scrambled" 56 four=1|add:3 as var %}The result is: {{ var }}') six.assertRaisesRegex(self, template.TemplateSyntaxError, "'assignment_unlimited_args_kwargs' received multiple values for keyword argument 'eggs'", template.Template, '{% load custom %}{% assignment_unlimited_args_kwargs 37 eggs="scrambled" eggs="scrambled" as var %}The result is: {{ var }}') def test_assignment_tag_registration(self): # Test that the decorators preserve the decorated function's docstring, name and attributes. self.verify_tag(custom.assignment_no_params, 'assignment_no_params') self.verify_tag(custom.assignment_one_param, 'assignment_one_param') self.verify_tag(custom.assignment_explicit_no_context, 'assignment_explicit_no_context') self.verify_tag(custom.assignment_no_params_with_context, 'assignment_no_params_with_context') self.verify_tag(custom.assignment_params_and_context, 'assignment_params_and_context') self.verify_tag(custom.assignment_one_default, 'assignment_one_default') self.verify_tag(custom.assignment_two_params, 'assignment_two_params') self.verify_tag(custom.assignment_unlimited_args, 'assignment_unlimited_args') self.verify_tag(custom.assignment_only_unlimited_args, 'assignment_only_unlimited_args') self.verify_tag(custom.assignment_unlimited_args, 'assignment_unlimited_args') self.verify_tag(custom.assignment_unlimited_args_kwargs, 'assignment_unlimited_args_kwargs') self.verify_tag(custom.assignment_tag_without_context_parameter, 'assignment_tag_without_context_parameter') def test_assignment_tag_missing_context(self): # The 'context' parameter must be present when takes_context is True six.assertRaisesRegex(self, template.TemplateSyntaxError, "'assignment_tag_without_context_parameter' is decorated with takes_context=True so it must have a first argument of 'context'", template.Template, '{% load custom %}{% assignment_tag_without_context_parameter 123 as var %}')