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|
from django.template import TemplateSyntaxError
from django.template.defaulttags import ForNode
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):
msg = "'for' tag received an invalid argument: for key value in items"
with self.assertRaisesMessage(TemplateSyntaxError, msg):
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):
msg = "'for' tag received an invalid argument: for key,,value in items"
with self.assertRaisesMessage(TemplateSyntaxError, msg):
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):
msg = "'for' tag received an invalid argument: for key,value, in items"
with self.assertRaisesMessage(TemplateSyntaxError, msg):
self.engine.render_to_string(
"for-tag-unpack08", {"items": (("one", 1), ("two", 2))}
)
@setup({"double-quote": '{% for "k" in items %}{{ "k" }}/{% endfor %}'})
def test_unpack_double_quote(self):
msg = """'for' tag received an invalid argument: for "k" in items"""
with self.assertRaisesMessage(TemplateSyntaxError, msg):
self.engine.render_to_string("double-quote", {"items": (1, 2)})
@setup({"single-quote": "{% for 'k' in items %}{{ k }}/{% endfor %}"})
def test_unpack_single_quote(self):
msg = """'for' tag received an invalid argument: for 'k' in items"""
with self.assertRaisesMessage(TemplateSyntaxError, msg):
self.engine.render_to_string("single-quote", {"items": (1, 2)})
@setup({"vertical-bar": "{% for k|upper in items %}{{ k|upper }}/{% endfor %}"})
def test_unpack_vertical_bar(self):
msg = "'for' tag received an invalid argument: for k|upper in items"
with self.assertRaisesMessage(TemplateSyntaxError, msg):
self.engine.render_to_string("vertical-bar", {"items": (1, 2)})
@setup(
{
"for-tag-unpack09": (
"{% for val in items %}{{ val.0 }}:{{ val.1 }}/{% endfor %}"
)
}
)
def test_for_tag_unpack09(self):
"""
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")
@setup(
{"for-tag-unpack-strs": "{% for x,y in items %}{{ x }}:{{ y }}/{% endfor %}"}
)
def test_for_tag_unpack_strs(self):
output = self.engine.render_to_string(
"for-tag-unpack-strs", {"items": ("ab", "ac")}
)
self.assertEqual(output, "a:b/a:c/")
@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)})
@setup(
{
"main": '{% with alpha=alpha.values %}{% include "base" %}{% endwith %}_'
'{% with alpha=alpha.extra %}{% include "base" %}{% endwith %}',
"base": "{% for x, y in alpha %}{{ x }}:{{ y }},{% endfor %}",
}
)
def test_for_tag_context(self):
"""
ForNode.render() pops the values it pushes to the context (#28001).
"""
output = self.engine.render_to_string(
"main",
{
"alpha": {
"values": [("two", 2), ("four", 4)],
"extra": [("six", 6), ("eight", 8)],
},
},
)
self.assertEqual(output, "two:2,four:4,_six:6,eight:8,")
@setup({"invalid_for_loop": "{% for x items %}{{ x }}{% endfor %}"})
def test_invalid_arg(self):
msg = "'for' statements should have at least four words: for x items"
with self.assertRaisesMessage(TemplateSyntaxError, msg):
self.engine.render_to_string("invalid_for_loop", {"items": (1, 2)})
@setup({"invalid_for_loop": "{% for x from items %}{{ x }}{% endfor %}"})
def test_invalid_in_keyword(self):
msg = "'for' statements should use the format 'for x in y': for x from items"
with self.assertRaisesMessage(TemplateSyntaxError, msg):
self.engine.render_to_string("invalid_for_loop", {"items": (1, 2)})
class ForNodeTests(SimpleTestCase):
def test_repr(self):
node = ForNode(
"x",
"sequence",
is_reversed=True,
nodelist_loop=["val"],
nodelist_empty=["val2"],
)
self.assertEqual(
repr(node), "<ForNode: for x in sequence, tail_len: 1 reversed>"
)
|
