mirror of
https://github.com/django/django.git
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372 lines
12 KiB
Python
372 lines
12 KiB
Python
from django.template import TemplateSyntaxError
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from django.template.defaulttags import ForNode
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from django.test import SimpleTestCase
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from ..utils import setup
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class ForTagTests(SimpleTestCase):
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libraries = {"custom": "template_tests.templatetags.custom"}
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@setup({"for-tag01": "{% for val in values %}{{ val }}{% endfor %}"})
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def test_for_tag01(self):
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output = self.engine.render_to_string("for-tag01", {"values": [1, 2, 3]})
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self.assertEqual(output, "123")
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@setup({"for-tag02": "{% for val in values reversed %}{{ val }}{% endfor %}"})
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def test_for_tag02(self):
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output = self.engine.render_to_string("for-tag02", {"values": [1, 2, 3]})
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self.assertEqual(output, "321")
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@setup(
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{"for-tag-vars01": "{% for val in values %}{{ forloop.counter }}{% endfor %}"}
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)
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def test_for_tag_vars01(self):
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output = self.engine.render_to_string("for-tag-vars01", {"values": [6, 6, 6]})
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self.assertEqual(output, "123")
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@setup(
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{"for-tag-vars02": "{% for val in values %}{{ forloop.counter0 }}{% endfor %}"}
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)
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def test_for_tag_vars02(self):
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output = self.engine.render_to_string("for-tag-vars02", {"values": [6, 6, 6]})
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self.assertEqual(output, "012")
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@setup(
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{
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"for-tag-vars03": (
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"{% for val in values %}{{ forloop.revcounter }}{% endfor %}"
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)
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}
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)
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def test_for_tag_vars03(self):
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output = self.engine.render_to_string("for-tag-vars03", {"values": [6, 6, 6]})
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self.assertEqual(output, "321")
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@setup(
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{
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"for-tag-vars04": (
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"{% for val in values %}{{ forloop.revcounter0 }}{% endfor %}"
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)
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}
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)
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def test_for_tag_vars04(self):
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output = self.engine.render_to_string("for-tag-vars04", {"values": [6, 6, 6]})
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self.assertEqual(output, "210")
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@setup(
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{
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"for-tag-vars05": "{% for val in values %}"
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"{% if forloop.first %}f{% else %}x{% endif %}{% endfor %}"
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}
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)
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def test_for_tag_vars05(self):
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output = self.engine.render_to_string("for-tag-vars05", {"values": [6, 6, 6]})
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self.assertEqual(output, "fxx")
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@setup(
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{
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"for-tag-vars06": "{% for val in values %}"
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"{% if forloop.last %}l{% else %}x{% endif %}{% endfor %}"
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}
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)
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def test_for_tag_vars06(self):
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output = self.engine.render_to_string("for-tag-vars06", {"values": [6, 6, 6]})
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self.assertEqual(output, "xxl")
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@setup(
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{
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"for-tag-unpack01": (
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"{% for key,value in items %}{{ key }}:{{ value }}/{% endfor %}"
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)
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}
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)
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def test_for_tag_unpack01(self):
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output = self.engine.render_to_string(
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"for-tag-unpack01", {"items": (("one", 1), ("two", 2))}
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)
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self.assertEqual(output, "one:1/two:2/")
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@setup(
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{
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"for-tag-unpack03": (
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"{% for key, value in items %}{{ key }}:{{ value }}/{% endfor %}"
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)
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}
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)
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def test_for_tag_unpack03(self):
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output = self.engine.render_to_string(
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"for-tag-unpack03", {"items": (("one", 1), ("two", 2))}
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)
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self.assertEqual(output, "one:1/two:2/")
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@setup(
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{
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"for-tag-unpack04": (
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"{% for key , value in items %}{{ key }}:{{ value }}/{% endfor %}"
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)
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}
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)
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def test_for_tag_unpack04(self):
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output = self.engine.render_to_string(
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"for-tag-unpack04", {"items": (("one", 1), ("two", 2))}
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)
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self.assertEqual(output, "one:1/two:2/")
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@setup(
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{
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"for-tag-unpack05": (
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"{% for key ,value in items %}{{ key }}:{{ value }}/{% endfor %}"
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)
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}
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)
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def test_for_tag_unpack05(self):
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output = self.engine.render_to_string(
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"for-tag-unpack05", {"items": (("one", 1), ("two", 2))}
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)
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self.assertEqual(output, "one:1/two:2/")
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@setup(
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{
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"for-tag-unpack06": (
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"{% for key value in items %}{{ key }}:{{ value }}/{% endfor %}"
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)
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}
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)
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def test_for_tag_unpack06(self):
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msg = "'for' tag received an invalid argument: for key value in items"
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with self.assertRaisesMessage(TemplateSyntaxError, msg):
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self.engine.render_to_string(
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"for-tag-unpack06", {"items": (("one", 1), ("two", 2))}
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)
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@setup(
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{
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"for-tag-unpack07": (
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"{% for key,,value in items %}{{ key }}:{{ value }}/{% endfor %}"
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)
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}
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)
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def test_for_tag_unpack07(self):
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msg = "'for' tag received an invalid argument: for key,,value in items"
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with self.assertRaisesMessage(TemplateSyntaxError, msg):
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self.engine.render_to_string(
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"for-tag-unpack07", {"items": (("one", 1), ("two", 2))}
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)
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@setup(
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{
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"for-tag-unpack08": (
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"{% for key,value, in items %}{{ key }}:{{ value }}/{% endfor %}"
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)
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}
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)
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def test_for_tag_unpack08(self):
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msg = "'for' tag received an invalid argument: for key,value, in items"
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with self.assertRaisesMessage(TemplateSyntaxError, msg):
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self.engine.render_to_string(
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"for-tag-unpack08", {"items": (("one", 1), ("two", 2))}
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)
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@setup({"double-quote": '{% for "k" in items %}{{ "k" }}/{% endfor %}'})
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def test_unpack_double_quote(self):
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msg = """'for' tag received an invalid argument: for "k" in items"""
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with self.assertRaisesMessage(TemplateSyntaxError, msg):
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self.engine.render_to_string("double-quote", {"items": (1, 2)})
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@setup({"single-quote": "{% for 'k' in items %}{{ k }}/{% endfor %}"})
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def test_unpack_single_quote(self):
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msg = """'for' tag received an invalid argument: for 'k' in items"""
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with self.assertRaisesMessage(TemplateSyntaxError, msg):
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self.engine.render_to_string("single-quote", {"items": (1, 2)})
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@setup({"vertical-bar": "{% for k|upper in items %}{{ k|upper }}/{% endfor %}"})
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def test_unpack_vertical_bar(self):
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msg = "'for' tag received an invalid argument: for k|upper in items"
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with self.assertRaisesMessage(TemplateSyntaxError, msg):
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self.engine.render_to_string("vertical-bar", {"items": (1, 2)})
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@setup(
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{
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"for-tag-unpack09": (
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"{% for val in items %}{{ val.0 }}:{{ val.1 }}/{% endfor %}"
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)
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}
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)
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def test_for_tag_unpack09(self):
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"""
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A single loopvar doesn't truncate the list in val.
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"""
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output = self.engine.render_to_string(
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"for-tag-unpack09", {"items": (("one", 1), ("two", 2))}
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)
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self.assertEqual(output, "one:1/two:2/")
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@setup(
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{
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"for-tag-unpack13": (
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"{% for x,y,z in items %}{{ x }}:{{ y }},{{ z }}/{% endfor %}"
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)
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}
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)
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def test_for_tag_unpack13(self):
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output = self.engine.render_to_string(
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"for-tag-unpack13", {"items": (("one", 1, "carrot"), ("two", 2, "cheese"))}
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)
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if self.engine.string_if_invalid:
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self.assertEqual(output, "one:1,carrot/two:2,cheese/")
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else:
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self.assertEqual(output, "one:1,carrot/two:2,cheese/")
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@setup(
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{
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"for-tag-empty01": (
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"{% for val in values %}{{ val }}{% empty %}empty text{% endfor %}"
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)
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}
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)
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def test_for_tag_empty01(self):
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output = self.engine.render_to_string("for-tag-empty01", {"values": [1, 2, 3]})
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self.assertEqual(output, "123")
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@setup(
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{
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"for-tag-empty02": (
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"{% for val in values %}{{ val }}{% empty %}values array empty"
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"{% endfor %}"
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)
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}
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)
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def test_for_tag_empty02(self):
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output = self.engine.render_to_string("for-tag-empty02", {"values": []})
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self.assertEqual(output, "values array empty")
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@setup(
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{
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"for-tag-empty03": "{% for val in values %}"
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"{{ val }}{% empty %}values array not found{% endfor %}"
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}
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)
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def test_for_tag_empty03(self):
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output = self.engine.render_to_string("for-tag-empty03")
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self.assertEqual(output, "values array not found")
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@setup(
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{
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"for-tag-filter-ws": (
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"{% load custom %}{% for x in s|noop:'x y' %}{{ x }}{% endfor %}"
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)
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}
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)
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def test_for_tag_filter_ws(self):
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"""
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#19882
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"""
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output = self.engine.render_to_string("for-tag-filter-ws", {"s": "abc"})
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self.assertEqual(output, "abc")
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@setup(
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{"for-tag-unpack-strs": "{% for x,y in items %}{{ x }}:{{ y }}/{% endfor %}"}
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)
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def test_for_tag_unpack_strs(self):
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output = self.engine.render_to_string(
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"for-tag-unpack-strs", {"items": ("ab", "ac")}
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)
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self.assertEqual(output, "a:b/a:c/")
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@setup({"for-tag-unpack10": "{% for x,y in items %}{{ x }}:{{ y }}/{% endfor %}"})
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def test_for_tag_unpack10(self):
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with self.assertRaisesMessage(
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ValueError, "Need 2 values to unpack in for loop; got 3."
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):
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self.engine.render_to_string(
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"for-tag-unpack10",
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{"items": (("one", 1, "carrot"), ("two", 2, "orange"))},
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)
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@setup(
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{
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"for-tag-unpack11": (
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"{% for x,y,z in items %}{{ x }}:{{ y }},{{ z }}/{% endfor %}"
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)
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}
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)
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def test_for_tag_unpack11(self):
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with self.assertRaisesMessage(
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ValueError, "Need 3 values to unpack in for loop; got 2."
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):
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self.engine.render_to_string(
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"for-tag-unpack11",
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{"items": (("one", 1), ("two", 2))},
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)
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@setup(
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{
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"for-tag-unpack12": (
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"{% for x,y,z in items %}{{ x }}:{{ y }},{{ z }}/{% endfor %}"
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)
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}
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)
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def test_for_tag_unpack12(self):
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with self.assertRaisesMessage(
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ValueError, "Need 3 values to unpack in for loop; got 2."
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):
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self.engine.render_to_string(
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"for-tag-unpack12", {"items": (("one", 1, "carrot"), ("two", 2))}
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)
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@setup({"for-tag-unpack14": "{% for x,y in items %}{{ x }}:{{ y }}/{% endfor %}"})
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def test_for_tag_unpack14(self):
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with self.assertRaisesMessage(
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ValueError, "Need 2 values to unpack in for loop; got 1."
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):
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self.engine.render_to_string("for-tag-unpack14", {"items": (1, 2)})
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@setup(
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{
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"main": '{% with alpha=alpha.values %}{% include "base" %}{% endwith %}_'
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'{% with alpha=alpha.extra %}{% include "base" %}{% endwith %}',
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"base": "{% for x, y in alpha %}{{ x }}:{{ y }},{% endfor %}",
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}
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)
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def test_for_tag_context(self):
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"""
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ForNode.render() pops the values it pushes to the context (#28001).
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"""
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output = self.engine.render_to_string(
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"main",
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{
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"alpha": {
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"values": [("two", 2), ("four", 4)],
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"extra": [("six", 6), ("eight", 8)],
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},
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},
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)
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self.assertEqual(output, "two:2,four:4,_six:6,eight:8,")
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@setup({"invalid_for_loop": "{% for x items %}{{ x }}{% endfor %}"})
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def test_invalid_arg(self):
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msg = "'for' statements should have at least four words: for x items"
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with self.assertRaisesMessage(TemplateSyntaxError, msg):
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self.engine.render_to_string("invalid_for_loop", {"items": (1, 2)})
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@setup({"invalid_for_loop": "{% for x from items %}{{ x }}{% endfor %}"})
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def test_invalid_in_keyword(self):
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msg = "'for' statements should use the format 'for x in y': for x from items"
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with self.assertRaisesMessage(TemplateSyntaxError, msg):
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self.engine.render_to_string("invalid_for_loop", {"items": (1, 2)})
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class ForNodeTests(SimpleTestCase):
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def test_repr(self):
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node = ForNode(
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"x",
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"sequence",
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is_reversed=True,
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nodelist_loop=["val"],
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nodelist_empty=["val2"],
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)
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self.assertEqual(
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repr(node), "<ForNode: for x in sequence, tail_len: 1 reversed>"
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)
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