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Add tests for parse_unified_diff

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We could probably use non-git diff fixtures, but those are what we have
for now.
This commit is contained in:
Ian Cordasco 2016-06-07 10:14:45 -05:00
parent 02bcbee245
commit 9ebaa5c69c
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5 changed files with 243 additions and 3 deletions
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35
tests/unit/test_utils.py
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@ -115,3 +115,38 @@ def test_parameters_for_function_plugin():
plugin = plugin_manager.Plugin('plugin-name', object())
plugin._plugin = fake_plugin
assert utils.parameters_for(plugin) == ['physical_line', 'self', 'tree']
def read_diff_file(filename):
"""Read the diff file in its entirety."""
with open(filename, 'r') as fd:
content = fd.read()
return content
SINGLE_FILE_DIFF = read_diff_file('tests/fixtures/diffs/single_file_diff')
SINGLE_FILE_INFO = {
'flake8/utils.py': set(range(75, 83)).union(set(range(84, 94))),
}
TWO_FILE_DIFF = read_diff_file('tests/fixtures/diffs/two_file_diff')
TWO_FILE_INFO = {
'flake8/utils.py': set(range(75, 83)).union(set(range(84, 94))),
'tests/unit/test_utils.py': set(range(115, 128)),
}
MULTI_FILE_DIFF = read_diff_file('tests/fixtures/diffs/multi_file_diff')
MULTI_FILE_INFO = {
'flake8/utils.py': set(range(75, 83)).union(set(range(84, 94))),
'tests/unit/test_utils.py': set(range(115, 129)),
'tests/fixtures/diffs/single_file_diff': set(range(1, 28)),
'tests/fixtures/diffs/two_file_diff': set(range(1, 46)),
}
@pytest.mark.parametrize("diff, parsed_diff", [
(SINGLE_FILE_DIFF, SINGLE_FILE_INFO),
(TWO_FILE_DIFF, TWO_FILE_INFO),
(MULTI_FILE_DIFF, MULTI_FILE_INFO),
])
def test_parse_unified_diff(diff, parsed_diff):
"""Verify that what we parse from a diff matches expectations."""
assert utils.parse_unified_diff(diff) == parsed_diff