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76 lines
2.1 KiB
76 lines
2.1 KiB
import itertools
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from jinja2 import Template
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from jinja2.runtime import LoopContext
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TEST_IDX_TEMPLATE_STR_1 = (
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"[{% for i in lst|reverse %}(len={{ loop.length }},"
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" revindex={{ loop.revindex }}, index={{ loop.index }}, val={{ i }}){% endfor %}]"
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)
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TEST_IDX0_TEMPLATE_STR_1 = (
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"[{% for i in lst|reverse %}(len={{ loop.length }},"
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" revindex0={{ loop.revindex0 }}, index0={{ loop.index0 }}, val={{ i }})"
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"{% endfor %}]"
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)
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def test_loop_idx():
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t = Template(TEST_IDX_TEMPLATE_STR_1)
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lst = [10]
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excepted_render = "[(len=1, revindex=1, index=1, val=10)]"
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assert excepted_render == t.render(lst=lst)
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def test_loop_idx0():
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t = Template(TEST_IDX0_TEMPLATE_STR_1)
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lst = [10]
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excepted_render = "[(len=1, revindex0=0, index0=0, val=10)]"
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assert excepted_render == t.render(lst=lst)
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def test_loopcontext0():
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in_lst = []
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lc = LoopContext(reversed(in_lst), None)
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assert lc.length == len(in_lst)
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def test_loopcontext1():
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in_lst = [10]
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lc = LoopContext(reversed(in_lst), None)
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assert lc.length == len(in_lst)
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def test_loopcontext2():
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in_lst = [10, 11]
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lc = LoopContext(reversed(in_lst), None)
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assert lc.length == len(in_lst)
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def test_iterator_not_advanced_early():
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t = Template("{% for _, g in gs %}{{ loop.index }} {{ g|list }}\n{% endfor %}")
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out = t.render(
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gs=itertools.groupby([(1, "a"), (1, "b"), (2, "c"), (3, "d")], lambda x: x[0])
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)
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# groupby groups depend on the current position of the iterator. If
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# it was advanced early, the lists would appear empty.
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assert out == "1 [(1, 'a'), (1, 'b')]\n2 [(2, 'c')]\n3 [(3, 'd')]\n"
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def test_mock_not_contextfunction():
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"""If a callable class has a ``__getattr__`` that returns True-like
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values for arbitrary attrs, it should not be incorrectly identified
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as a ``contextfunction``.
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"""
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class Calc:
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def __getattr__(self, item):
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return object()
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def __call__(self, *args, **kwargs):
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return len(args) + len(kwargs)
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t = Template("{{ calc() }}")
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out = t.render(calc=Calc())
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# Would be "1" if context argument was passed.
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assert out == "0"
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