def test_validate_layers_error(layers, conflicting_datasets, mocker):
mock_catalog = mocker.MagicMock()
mock_catalog.layers = layers
error_str = ", ".join(conflicting_datasets)
pattern = f"Transcoded datasets should have the same layer. Mismatch found for: {error_str}"
with pytest.raises(ValueError, match=re.escape(pattern)):
_validate_layers_for_transcoding(mock_catalog)
def test_validate_layers(layers, mocker):
mock_catalog = mocker.MagicMock()
mock_catalog.layers = layers
_validate_layers_for_transcoding(mock_catalog) # it shouldn't raise any error
