def test_transformer_transform_with_client_error(input_fn, predict_fn, output_fn):
with pytest.raises(_errors.ClientError) as e:
transform = _transformer.Transformer(
model_fn=MagicMock(), input_fn=input_fn, predict_fn=predict_fn, output_fn=output_fn
)
transform.transform()
assert e.value.args[0] == error_from_fn
def test_transformer_too_many_custom_methods():
with pytest.raises(ValueError) as e:
_transformer.Transformer(input_fn=MagicMock(),
predict_fn=MagicMock(),
output_fn=MagicMock(),
transform_fn=MagicMock())
assert 'Cannot use transform_fn implementation with input_fn, predict_fn, and/or output_fn' in str(
e)
def test_transformer_transform_with_unsupported_content_type():
bad_request = test.request(data=None, content_type='fake/content-type')
with patch('sagemaker_containers._worker.Request', lambda: bad_request):
response = _transformer.Transformer().transform()
assert response.status_code == http_client.UNSUPPORTED_MEDIA_TYPE
response_body = json.loads(response.response[0].decode('utf-8'))
assert response_body['error'] == 'UnsupportedFormatError'
assert bad_request.content_type in response_body['error-message']
def test_transformer_transform_with_unsupported_content_type():
bad_request = test.request(data=None, headers={"ContentType": "fake/content-type"})
with patch("sagemaker_containers._worker.Request", lambda: bad_request):
response = _transformer.Transformer().transform()
assert response.status_code == http_client.UNSUPPORTED_MEDIA_TYPE
response_body = json.loads(response.response[0].decode("utf-8"))
assert response_body["error"] == "UnsupportedFormatError"
assert bad_request.content_type in response_body["error-message"]
def test_transformer_with_custom_transform_fn():
model = MagicMock()
def model_fn(model_dir):
return model
transform_fn = MagicMock()
transform = _transformer.Transformer(model_fn=model_fn, transform_fn=transform_fn)
transform.initialize()
transform.transform()
transform_fn.assert_called_with(model, "13", _content_types.CSV, _content_types.ANY)
def test_transformer_transform_with_unsupported_accept_type():
def empty_fn(*args):
pass
bad_request = test.request(data=None, headers={"Accept": "fake/content-type"})
with patch("sagemaker_containers._worker.Request", lambda: bad_request):
t = _transformer.Transformer(model_fn=empty_fn, input_fn=empty_fn, predict_fn=empty_fn)
response = t.transform()
assert response.status_code == http_client.NOT_ACCEPTABLE
response_body = json.loads(response.response[0].decode("utf-8"))
assert response_body["error"] == "UnsupportedFormatError"
assert bad_request.accept in response_body["error-message"]
def test_transformer_transform():
model_fn, input_fn, predict_fn = (MagicMock(), MagicMock(), MagicMock())
output_fn = MagicMock(return_value="response")
transform = _transformer.Transformer(
model_fn=model_fn, input_fn=input_fn, predict_fn=predict_fn, output_fn=output_fn
)
transform.initialize()
assert transform.transform() == "response"
input_fn.assert_called_with("42", _content_types.JSON)
predict_fn.assert_called_with(input_fn(), model_fn())
output_fn.assert_called_with(predict_fn(), _content_types.NPY)
def test_transformer_with_custom_transform_fn():
model = MagicMock()
def model_fn(model_dir):
return model
transform_fn = MagicMock()
transform = _transformer.Transformer(model_fn=model_fn,
transform_fn=transform_fn)
transform.initialize()
transform.transform()
transform_fn.assert_called_with(model, request.content,
request.content_type, request.accept)
def test_transformer_transform(response):
model_fn, input_fn, predict_fn = (MagicMock(), MagicMock(), MagicMock())
output_fn = MagicMock(return_value=response)
transform = _transformer.Transformer(model_fn=model_fn,
input_fn=input_fn,
predict_fn=predict_fn,
output_fn=output_fn)
transform.initialize()
assert transform.transform() == response
input_fn.assert_called_with(request.content, request.content_type)
predict_fn.assert_called_with(input_fn(), model_fn())
output_fn.assert_called_with(predict_fn(), request.accept)
def test_transformer_transform_with_unsupported_accept_type():
def empty_fn(*args):
pass
bad_request = test.request(data=None, accept='fake/content_type')
with patch('sagemaker_containers._worker.Request', lambda: bad_request):
t = _transformer.Transformer(model_fn=empty_fn,
input_fn=empty_fn,
predict_fn=empty_fn)
response = t.transform()
assert response.status_code == http_client.NOT_ACCEPTABLE
response_body = json.loads(response.response[0].decode('utf-8'))
assert response_body['error'] == 'UnsupportedFormatError'
assert bad_request.accept in response_body['error-message']
def test_transformer_transform_backwards_compatibility():
model_fn, input_fn, predict_fn, output_fn = (
MagicMock(), MagicMock(), MagicMock(),
MagicMock(return_value=(0, _content_types.ANY)))
transform = _transformer.Transformer(model_fn=model_fn,
input_fn=input_fn,
predict_fn=predict_fn,
output_fn=output_fn)
transform.initialize()
assert transform.transform().status_code == http_client.OK
input_fn.assert_called_with('13', _content_types.CSV)
predict_fn.assert_called_with(input_fn(), model_fn())
output_fn.assert_called_with(predict_fn(), _content_types.ANY)
def test_transformer_transform_backwards_compatibility():
model_fn, input_fn, predict_fn, output_fn = (MagicMock(), MagicMock(),
MagicMock(),
MagicMock(return_value=(0,
1)))
transform = _transformer.Transformer(model_fn=model_fn,
input_fn=input_fn,
predict_fn=predict_fn,
output_fn=output_fn)
transform.initialize()
assert transform.transform().status_code == _status_codes.OK
input_fn.assert_called_with(request.content, request.content_type)
predict_fn.assert_called_with(input_fn(), model_fn())
output_fn.assert_called_with(predict_fn(), request.accept)
def test_transformer_initialize_with_client_error():
with pytest.raises(_errors.ClientError) as e:
_transformer.Transformer(model_fn=fn_with_error).initialize()
assert e.value.args[0] == error_from_fn
def test_transformer_initialize_with_default_model_fn():
with pytest.raises(NotImplementedError):
_transformer.Transformer().initialize()
def test_initialize():
model_fn = MagicMock()
_transformer.Transformer(model_fn=model_fn).initialize()
model_fn.assert_called_with(_env.model_dir)
def test_transformer_with_default_predict_fn():
with pytest.raises(NotImplementedError):
_transformer.Transformer().transform()
