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Render proper diffs for duplicate_consistency test (#228)

Use Python's built-in ``diflib`` to compute diffs between the two versions.
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Thom Wiggers 2019-08-23 15:15:45 +02:00 committed by GitHub
parent 9a5caaa95b
commit 8a120b3be7
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@ -2,7 +2,9 @@
Checks that files duplicated across schemes/implementations are consistent. Checks that files duplicated across schemes/implementations are consistent.
""" """
import difflib
import os import os
import sys
import yaml import yaml
@ -31,8 +33,9 @@ def pytest_generate_tests(metafunc):
for file in group['files']: for file in group['files']:
argvalues.append((implementation, source, file)) argvalues.append((implementation, source, file))
ids.append( ids.append(
"{scheme.name}-{source.scheme.name}: {file}" "{scheme.name} {implementation.name} {source.scheme.name}: {file}"
.format(scheme=scheme, source=source, .format(scheme=scheme, source=source,
implementation=implementation,
file=file)) file=file))
metafunc.parametrize(('implementation', 'source', 'file'), metafunc.parametrize(('implementation', 'source', 'file'),
argvalues, argvalues,
@ -47,17 +50,25 @@ def file_get_contents(filename):
@helpers.skip_windows() @helpers.skip_windows()
@helpers.filtered_test @helpers.filtered_test
def test_duplicate_consistency(implementation, source, file): def test_duplicate_consistency(implementation, source, file):
transformed_src = helpers.run_subprocess( target_path = os.path.join(source.path(), file)
['sed', '-e', 's/{}/{}/g'.format(source.namespace_prefix(), this_path = os.path.join(implementation.path(), file)
implementation.namespace_prefix()), os.path.join(source.path(), file)] target_src = file_get_contents(target_path)
) this_src = file_get_contents(this_path)
this_src = file_get_contents(os.path.join(implementation.path(), file)) this_transformed_src = this_src.replace(
print(os.path.join(implementation.path(), file)) implementation.namespace_prefix(), '')
print(this_src) target_transformed_src = target_src.replace(source.namespace_prefix(), '')
assert(transformed_src == this_src)
if not this_transformed_src == target_transformed_src:
diff = difflib.unified_diff(
this_transformed_src.splitlines(keepends=True),
target_transformed_src.splitlines(keepends=True),
fromfile=this_path,
tofile=target_path)
raise AssertionError(
"Files differed:\n"
+ ''.join(diff))
if __name__ == '__main__': if __name__ == '__main__':
import pytest import pytest
import sys
pytest.main(sys.argv) pytest.main(sys.argv)