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from django.template import TemplateSyntaxError
from django.test import SimpleTestCase
from ..utils import setup
class ForTagTests(SimpleTestCase):
libraries = {'custom': 'template_tests.templatetags.custom'}
@setup({'for-tag01': '{% for val in values %}{{ val }}{% endfor %}'})
def test_for_tag01(self):
output = self.engine.render_to_string('for-tag01', {'values': [1, 2, 3]})
self.assertEqual(output, '123')
@setup({'for-tag02': '{% for val in values reversed %}{{ val }}{% endfor %}'})
def test_for_tag02(self):
output = self.engine.render_to_string('for-tag02', {'values': [1, 2, 3]})
self.assertEqual(output, '321')
@setup({'for-tag-vars01': '{% for val in values %}{{ forloop.counter }}{% endfor %}'})
def test_for_tag_vars01(self):
output = self.engine.render_to_string('for-tag-vars01', {'values': [6, 6, 6]})
self.assertEqual(output, '123')
@setup({'for-tag-vars02': '{% for val in values %}{{ forloop.counter0 }}{% endfor %}'})
def test_for_tag_vars02(self):
output = self.engine.render_to_string('for-tag-vars02', {'values': [6, 6, 6]})
self.assertEqual(output, '012')
@setup({'for-tag-vars03': '{% for val in values %}{{ forloop.revcounter }}{% endfor %}'})
def test_for_tag_vars03(self):
output = self.engine.render_to_string('for-tag-vars03', {'values': [6, 6, 6]})
self.assertEqual(output, '321')
@setup({'for-tag-vars04': '{% for val in values %}{{ forloop.revcounter0 }}{% endfor %}'})
def test_for_tag_vars04(self):
output = self.engine.render_to_string('for-tag-vars04', {'values': [6, 6, 6]})
self.assertEqual(output, '210')
@setup({'for-tag-vars05': '{% for val in values %}'
'{% if forloop.first %}f{% else %}x{% endif %}{% endfor %}'})
def test_for_tag_vars05(self):
output = self.engine.render_to_string('for-tag-vars05', {'values': [6, 6, 6]})
self.assertEqual(output, 'fxx')
@setup({'for-tag-vars06': '{% for val in values %}'
'{% if forloop.last %}l{% else %}x{% endif %}{% endfor %}'})
def test_for_tag_vars06(self):
output = self.engine.render_to_string('for-tag-vars06', {'values': [6, 6, 6]})
self.assertEqual(output, 'xxl')
@setup({'for-tag-unpack01': '{% for key,value in items %}{{ key }}:{{ value }}/{% endfor %}'})
def test_for_tag_unpack01(self):
output = self.engine.render_to_string('for-tag-unpack01', {'items': (('one', 1), ('two', 2))})
self.assertEqual(output, 'one:1/two:2/')
@setup({'for-tag-unpack03': '{% for key, value in items %}{{ key }}:{{ value }}/{% endfor %}'})
def test_for_tag_unpack03(self):
output = self.engine.render_to_string('for-tag-unpack03', {'items': (('one', 1), ('two', 2))})
self.assertEqual(output, 'one:1/two:2/')
@setup({'for-tag-unpack04': '{% for key , value in items %}{{ key }}:{{ value }}/{% endfor %}'})
def test_for_tag_unpack04(self):
output = self.engine.render_to_string('for-tag-unpack04', {'items': (('one', 1), ('two', 2))})
self.assertEqual(output, 'one:1/two:2/')
@setup({'for-tag-unpack05': '{% for key ,value in items %}{{ key }}:{{ value }}/{% endfor %}'})
def test_for_tag_unpack05(self):
output = self.engine.render_to_string('for-tag-unpack05', {'items': (('one', 1), ('two', 2))})
self.assertEqual(output, 'one:1/two:2/')
@setup({'for-tag-unpack06': '{% for key value in items %}{{ key }}:{{ value }}/{% endfor %}'})
def test_for_tag_unpack06(self):
with self.assertRaises(TemplateSyntaxError):
self.engine.render_to_string('for-tag-unpack06', {'items': (('one', 1), ('two', 2))})
@setup({'for-tag-unpack07': '{% for key,,value in items %}{{ key }}:{{ value }}/{% endfor %}'})
def test_for_tag_unpack07(self):
with self.assertRaises(TemplateSyntaxError):
self.engine.render_to_string('for-tag-unpack07', {'items': (('one', 1), ('two', 2))})
@setup({'for-tag-unpack08': '{% for key,value, in items %}{{ key }}:{{ value }}/{% endfor %}'})
def test_for_tag_unpack08(self):
with self.assertRaises(TemplateSyntaxError):
self.engine.render_to_string('for-tag-unpack08', {'items': (('one', 1), ('two', 2))})
@setup({'for-tag-unpack09': '{% for val in items %}{{ val.0 }}:{{ val.1 }}/{% endfor %}'})
def test_for_tag_unpack09(self):
"""
Ensure that a single loopvar doesn't truncate the list in val.
"""
output = self.engine.render_to_string('for-tag-unpack09', {'items': (('one', 1), ('two', 2))})
self.assertEqual(output, 'one:1/two:2/')
@setup({'for-tag-unpack13': '{% for x,y,z in items %}{{ x }}:{{ y }},{{ z }}/{% endfor %}'})
def test_for_tag_unpack13(self):
output = self.engine.render_to_string(
'for-tag-unpack13', {'items': (('one', 1, 'carrot'), ('two', 2, 'cheese'))}
)
if self.engine.string_if_invalid:
self.assertEqual(output, 'one:1,carrot/two:2,cheese/')
else:
self.assertEqual(output, 'one:1,carrot/two:2,cheese/')
@setup({'for-tag-empty01': '{% for val in values %}{{ val }}{% empty %}empty text{% endfor %}'})
def test_for_tag_empty01(self):
output = self.engine.render_to_string('for-tag-empty01', {'values': [1, 2, 3]})
self.assertEqual(output, '123')
@setup({'for-tag-empty02': '{% for val in values %}{{ val }}{% empty %}values array empty{% endfor %}'})
def test_for_tag_empty02(self):
output = self.engine.render_to_string('for-tag-empty02', {'values': []})
self.assertEqual(output, 'values array empty')
@setup({'for-tag-empty03': '{% for val in values %}'
'{{ val }}{% empty %}values array not found{% endfor %}'})
def test_for_tag_empty03(self):
output = self.engine.render_to_string('for-tag-empty03')
self.assertEqual(output, 'values array not found')
@setup({'for-tag-filter-ws': "{% load custom %}{% for x in s|noop:'x y' %}{{ x }}{% endfor %}"})
def test_for_tag_filter_ws(self):
"""
#19882
"""
output = self.engine.render_to_string('for-tag-filter-ws', {'s': 'abc'})
self.assertEqual(output, 'abc')
# These tests raise deprecation warnings and will raise an exception
# in Django 1.10. The existing behavior is silent truncation if the
# length of loopvars differs to the length of each set of items.
@setup({'for-tag-unpack10': '{% for x,y in items %}{{ x }}:{{ y }}/{% endfor %}'})
def test_for_tag_unpack10(self):
with self.assertRaisesMessage(ValueError, 'Need 2 values to unpack in for loop; got 3.'):
self.engine.render_to_string(
'for-tag-unpack10',
{'items': (('one', 1, 'carrot'), ('two', 2, 'orange'))},
)
@setup({'for-tag-unpack11': '{% for x,y,z in items %}{{ x }}:{{ y }},{{ z }}/{% endfor %}'})
def test_for_tag_unpack11(self):
with self.assertRaisesMessage(ValueError, 'Need 3 values to unpack in for loop; got 2.'):
self.engine.render_to_string(
'for-tag-unpack11',
{'items': (('one', 1), ('two', 2))},
)
@setup({'for-tag-unpack12': '{% for x,y,z in items %}{{ x }}:{{ y }},{{ z }}/{% endfor %}'})
def test_for_tag_unpack12(self):
with self.assertRaisesMessage(ValueError, 'Need 3 values to unpack in for loop; got 2.'):
self.engine.render_to_string(
'for-tag-unpack12',
{'items': (('one', 1, 'carrot'), ('two', 2))}
)
@setup({'for-tag-unpack14': '{% for x,y in items %}{{ x }}:{{ y }}/{% endfor %}'})
def test_for_tag_unpack14(self):
with self.assertRaisesMessage(ValueError, 'Need 2 values to unpack in for loop; got 1.'):
self.engine.render_to_string('for-tag-unpack14', {'items': (1, 2)})
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