def test_with_compare_details_and_fallback():
class MockFile(FilesystemFile):
def compare_details(self, other, source=None):
return []
difference = MockFile(TEST_FILE1_PATH).compare(MockFile(TEST_FILE2_PATH))
expected_diff = get_data('binary_expected_diff')
assert 'yet data differs' in difference.comment
assert normalize_zeros(difference.unified_diff) == expected_diff
def test_with_compare_details_and_tool_not_found(monkeypatch):
monkeypatch.setattr('diffoscope.exc.RequiredToolNotFound.get_package',
lambda _: 'some-package')
class MockFile(FilesystemFile):
@tool_required('nonexistent')
def compare_details(self, other, source=None):
raise Exception('should not be run')
difference = MockFile(TEST_FILE1_PATH).compare(MockFile(TEST_FILE2_PATH))
expected_diff = get_data('binary_expected_diff')
assert 'nonexistent' in difference.comment
assert 'some-package' in difference.comment
assert normalize_zeros(difference.unified_diff) == expected_diff
def test_with_compare_details_and_failed_process():
output = 'Free Jeremy Hammond'
class MockFile(FilesystemFile):
def compare_details(self, other, source=None):
subprocess.check_output(
['sh', '-c', 'echo "%s"; exit 42' % output], shell=False)
raise Exception('should not be run')
difference = MockFile(TEST_FILE1_PATH).compare(MockFile(TEST_FILE2_PATH))
expected_diff = get_data('../data/binary_expected_diff')
assert output in difference.comment
assert '42' in difference.comment
assert normalize_zeros(difference.unified_diff) == expected_diff
def test_fallback_comparison(monkeypatch):
manager = ComparatorManager()
monkeypatch.setattr(manager, 'COMPARATORS', (('rpm_fallback.RpmFile', ), ))
manager.reload()
# Re-specialize after reloading our Comparators
rpm1 = specialize(FilesystemFile(data('test1.rpm')))
rpm2 = specialize(FilesystemFile(data('test2.rpm')))
assert rpm1.compare(rpm1) is None
assert rpm2.compare(rpm2) is None
expected_diff = get_data('rpm_fallback_expected_diff')
assert normalize_zeros(rpm1.compare(rpm2).unified_diff) == expected_diff
def test_diff_reverse(differences_reverse):
expected_diff = get_data('device_expected_diff_reverse')
assert normalize_zeros(differences_reverse.unified_diff) == expected_diff
def test_diff(differences):
expected_diff = get_data('device_expected_diff')
assert normalize_zeros(differences.unified_diff) == expected_diff
def test_compare_with_xxd(binary1, binary2):
difference = binary1.compare_bytes(binary2)
expected_diff = get_data('binary_expected_diff')
assert normalize_zeros(difference.unified_diff) == expected_diff