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grpc_provider_test.py
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grpc_provider_test.py
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# Copyright 2020 The TensorFlow Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
from unittest import mock
import grpc
import grpc_testing
import numpy as np
from tensorboard import errors
from tensorboard import test as tb_test
from tensorboard import context
from tensorboard.data import grpc_provider
from tensorboard.data import provider
from tensorboard.data.proto import data_provider_pb2
from tensorboard.data.proto import data_provider_pb2_grpc
from tensorboard.util import tensor_util
def _create_mock_client():
# Create a stub instance (using a test channel) in order to derive a mock
# from it with autospec enabled. Mocking TensorBoardWriterServiceStub itself
# doesn't work with autospec because grpc constructs stubs via metaclassing.
test_channel = grpc_testing.channel(
service_descriptors=[], time=grpc_testing.strict_real_time()
)
stub = data_provider_pb2_grpc.TensorBoardDataProviderStub(test_channel)
return mock.create_autospec(stub)
class GrpcDataProviderTest(tb_test.TestCase):
def setUp(self):
super().setUp()
self.stub = _create_mock_client()
addr = "localhost:0" # invalid, just in case it tries to connect
self.provider = grpc_provider.GrpcDataProvider(addr, self.stub)
self.ctx = context.RequestContext()
def test_data_location(self):
res = data_provider_pb2.GetExperimentResponse()
res.data_location = "./logs/mnist"
self.stub.GetExperiment.return_value = res
actual = self.provider.data_location(self.ctx, experiment_id="123")
self.assertEqual(actual, "./logs/mnist")
req = data_provider_pb2.GetExperimentRequest()
req.experiment_id = "123"
self.stub.GetExperiment.assert_called_once_with(req)
def test_experiment_metadata_when_only_data_location_set(self):
res = data_provider_pb2.GetExperimentResponse()
self.stub.GetExperiment.return_value = res
actual = self.provider.experiment_metadata(
self.ctx, experiment_id="123"
)
self.assertEqual(actual, provider.ExperimentMetadata())
req = data_provider_pb2.GetExperimentRequest()
req.experiment_id = "123"
self.stub.GetExperiment.assert_called_once_with(req)
def test_experiment_metadata_with_partial_metadata(self):
res = data_provider_pb2.GetExperimentResponse()
res.name = "mnist"
self.stub.GetExperiment.return_value = res
actual = self.provider.experiment_metadata(
self.ctx, experiment_id="123"
)
self.assertEqual(
actual,
provider.ExperimentMetadata(
experiment_name="mnist",
experiment_description="",
creation_time=0,
),
)
req = data_provider_pb2.GetExperimentRequest()
req.experiment_id = "123"
self.stub.GetExperiment.assert_called_once_with(req)
def test_experiment_metadata_with_creation_time(self):
res = data_provider_pb2.GetExperimentResponse()
res.name = "mnist"
res.description = "big breakthroughs"
res.creation_time.FromMilliseconds(1500)
self.stub.GetExperiment.return_value = res
actual = self.provider.experiment_metadata(
self.ctx, experiment_id="123"
)
self.assertEqual(
actual,
provider.ExperimentMetadata(
experiment_name="mnist",
experiment_description="big breakthroughs",
creation_time=1.5,
),
)
req = data_provider_pb2.GetExperimentRequest()
req.experiment_id = "123"
self.stub.GetExperiment.assert_called_once_with(req)
def test_list_plugins(self):
res = data_provider_pb2.ListPluginsResponse()
res.plugins.add(name="scalars")
res.plugins.add(name="images")
res.plugins.add(name="text")
self.stub.ListPlugins.return_value = res
actual = self.provider.list_plugins(self.ctx, experiment_id="123")
self.assertEqual(actual, ["scalars", "images", "text"])
req = data_provider_pb2.ListPluginsRequest()
req.experiment_id = "123"
self.stub.ListPlugins.assert_called_once_with(req)
def test_list_runs(self):
res = data_provider_pb2.ListRunsResponse()
res.runs.add(name="val", start_time=1234.5)
res.runs.add(name="test", start_time=6789.0)
self.stub.ListRuns.return_value = res
actual = self.provider.list_runs(self.ctx, experiment_id="123")
expected = [
provider.Run(run_id="val", run_name="val", start_time=1234.5),
provider.Run(run_id="test", run_name="test", start_time=6789.0),
]
self.assertEqual(actual, expected)
req = data_provider_pb2.ListRunsRequest()
req.experiment_id = "123"
self.stub.ListRuns.assert_called_once_with(req)
def test_list_scalars(self):
res = data_provider_pb2.ListScalarsResponse()
run1 = res.runs.add(run_name="val")
tag11 = run1.tags.add(tag_name="accuracy")
tag11.metadata.max_step = 7
tag11.metadata.max_wall_time = 7.77
tag11.metadata.summary_metadata.plugin_data.content = b"magic"
tag11.metadata.summary_metadata.display_name = "Accuracy"
tag11.metadata.summary_metadata.summary_description = "hey"
tag12 = run1.tags.add(tag_name="xent")
tag12.metadata.max_step = 8
tag12.metadata.max_wall_time = 8.88
run2 = res.runs.add(run_name="test")
tag21 = run2.tags.add(tag_name="accuracy")
tag21.metadata.max_step = 9
tag21.metadata.max_wall_time = 9.99
self.stub.ListScalars.return_value = res
actual = self.provider.list_scalars(
self.ctx,
experiment_id="123",
plugin_name="scalars",
run_tag_filter=provider.RunTagFilter(tags=["xent", "accuracy"]),
)
expected = {
"val": {
"accuracy": provider.ScalarTimeSeries(
max_step=7,
max_wall_time=7.77,
plugin_content=b"magic",
description="hey",
display_name="Accuracy",
),
"xent": provider.ScalarTimeSeries(
max_step=8,
max_wall_time=8.88,
plugin_content=b"",
description="",
display_name="",
),
},
"test": {
"accuracy": provider.ScalarTimeSeries(
max_step=9,
max_wall_time=9.99,
plugin_content=b"",
description="",
display_name="",
),
},
}
self.assertEqual(actual, expected)
req = data_provider_pb2.ListScalarsRequest()
req.experiment_id = "123"
req.plugin_filter.plugin_name = "scalars"
req.run_tag_filter.tags.names.extend(["accuracy", "xent"]) # sorted
self.stub.ListScalars.assert_called_once_with(req)
def test_read_scalars(self):
res = data_provider_pb2.ReadScalarsResponse()
run = res.runs.add(run_name="test")
tag = run.tags.add(tag_name="accuracy")
tag.data.step.extend([0, 1, 2, 4])
tag.data.wall_time.extend([1234.0, 1235.0, 1236.0, 1237.0])
tag.data.value.extend([0.25, 0.50, 0.75, 1.00])
self.stub.ReadScalars.return_value = res
actual = self.provider.read_scalars(
self.ctx,
experiment_id="123",
plugin_name="scalars",
run_tag_filter=provider.RunTagFilter(runs=["test", "nope"]),
downsample=4,
)
expected = {
"test": {
"accuracy": [
provider.ScalarDatum(step=0, wall_time=1234.0, value=0.25),
provider.ScalarDatum(step=1, wall_time=1235.0, value=0.50),
provider.ScalarDatum(step=2, wall_time=1236.0, value=0.75),
provider.ScalarDatum(step=4, wall_time=1237.0, value=1.00),
],
},
}
self.assertEqual(actual, expected)
req = data_provider_pb2.ReadScalarsRequest()
req.experiment_id = "123"
req.plugin_filter.plugin_name = "scalars"
req.run_tag_filter.runs.names.extend(["nope", "test"]) # sorted
req.downsample.num_points = 4
self.stub.ReadScalars.assert_called_once_with(req)
def test_list_tensors(self):
res = data_provider_pb2.ListTensorsResponse()
run1 = res.runs.add(run_name="val")
tag11 = run1.tags.add(tag_name="weights")
tag11.metadata.max_step = 7
tag11.metadata.max_wall_time = 7.77
tag11.metadata.summary_metadata.plugin_data.content = b"magic"
tag11.metadata.summary_metadata.summary_description = "hey"
tag12 = run1.tags.add(tag_name="other")
tag12.metadata.max_step = 8
tag12.metadata.max_wall_time = 8.88
run2 = res.runs.add(run_name="test")
tag21 = run2.tags.add(tag_name="weights")
tag21.metadata.max_step = 9
tag21.metadata.max_wall_time = 9.99
self.stub.ListTensors.return_value = res
actual = self.provider.list_tensors(
self.ctx,
experiment_id="123",
plugin_name="histograms",
run_tag_filter=provider.RunTagFilter(tags=["weights", "other"]),
)
expected = {
"val": {
"weights": provider.TensorTimeSeries(
max_step=7,
max_wall_time=7.77,
plugin_content=b"magic",
description="hey",
display_name="",
),
"other": provider.TensorTimeSeries(
max_step=8,
max_wall_time=8.88,
plugin_content=b"",
description="",
display_name="",
),
},
"test": {
"weights": provider.TensorTimeSeries(
max_step=9,
max_wall_time=9.99,
plugin_content=b"",
description="",
display_name="",
),
},
}
self.assertEqual(actual, expected)
req = data_provider_pb2.ListTensorsRequest()
req.experiment_id = "123"
req.plugin_filter.plugin_name = "histograms"
req.run_tag_filter.tags.names.extend(["other", "weights"]) # sorted
self.stub.ListTensors.assert_called_once_with(req)
def test_read_tensors(self):
res = data_provider_pb2.ReadTensorsResponse()
run = res.runs.add(run_name="test")
tag = run.tags.add(tag_name="weights")
tag.data.step.extend([0, 1, 2])
tag.data.wall_time.extend([1234.0, 1235.0, 1236.0])
tag.data.value.append(tensor_util.make_tensor_proto([0.0, 0.0, 42.0]))
tag.data.value.append(tensor_util.make_tensor_proto([1.0, 1.0, 43.0]))
tag.data.value.append(tensor_util.make_tensor_proto([2.0, 2.0, 44.0]))
self.stub.ReadTensors.return_value = res
actual = self.provider.read_tensors(
self.ctx,
experiment_id="123",
plugin_name="histograms",
run_tag_filter=provider.RunTagFilter(runs=["test", "nope"]),
downsample=3,
)
expected = {
"test": {
"weights": [
provider.TensorDatum(
step=0,
wall_time=1234.0,
numpy=np.array([0.0, 0.0, 42.0]),
),
provider.TensorDatum(
step=1,
wall_time=1235.0,
numpy=np.array([1.0, 1.0, 43.0]),
),
provider.TensorDatum(
step=2,
wall_time=1236.0,
numpy=np.array([2.0, 2.0, 44.0]),
),
],
},
}
self.assertEqual(actual, expected)
req = data_provider_pb2.ReadTensorsRequest()
req.experiment_id = "123"
req.plugin_filter.plugin_name = "histograms"
req.run_tag_filter.runs.names.extend(["nope", "test"]) # sorted
req.downsample.num_points = 3
self.stub.ReadTensors.assert_called_once_with(req)
def test_list_blob_sequences(self):
res = data_provider_pb2.ListBlobSequencesResponse()
run1 = res.runs.add(run_name="train")
tag11 = run1.tags.add(tag_name="input_image")
tag11.metadata.max_step = 7
tag11.metadata.max_wall_time = 7.77
tag11.metadata.max_length = 3
tag11.metadata.summary_metadata.plugin_data.content = b"PNG"
tag11.metadata.summary_metadata.display_name = "Input image"
tag11.metadata.summary_metadata.summary_description = "img"
self.stub.ListBlobSequences.return_value = res
actual = self.provider.list_blob_sequences(
self.ctx,
experiment_id="123",
plugin_name="images",
run_tag_filter=provider.RunTagFilter(runs=["val", "train"]),
)
expected = {
"train": {
"input_image": provider.BlobSequenceTimeSeries(
max_step=7,
max_wall_time=7.77,
max_length=3,
plugin_content=b"PNG",
description="img",
display_name="Input image",
),
},
}
self.assertEqual(actual, expected)
req = data_provider_pb2.ListBlobSequencesRequest()
req.experiment_id = "123"
req.plugin_filter.plugin_name = "images"
req.run_tag_filter.runs.names.extend(["train", "val"]) # sorted
self.stub.ListBlobSequences.assert_called_once_with(req)
def test_read_blob_sequences(self):
res = data_provider_pb2.ReadBlobSequencesResponse()
run = res.runs.add(run_name="test")
tag = run.tags.add(tag_name="input_image")
tag.data.step.extend([0, 1])
tag.data.wall_time.extend([1234.0, 1235.0])
seq0 = tag.data.values.add()
seq0.blob_refs.add(blob_key="step0img0")
seq0.blob_refs.add(blob_key="step0img1")
seq1 = tag.data.values.add()
seq1.blob_refs.add(blob_key="step1img0")
self.stub.ReadBlobSequences.return_value = res
actual = self.provider.read_blob_sequences(
self.ctx,
experiment_id="123",
plugin_name="images",
run_tag_filter=provider.RunTagFilter(runs=["test", "nope"]),
downsample=4,
)
expected = {
"test": {
"input_image": [
provider.BlobSequenceDatum(
step=0,
wall_time=1234.0,
values=(
provider.BlobReference(blob_key="step0img0"),
provider.BlobReference(blob_key="step0img1"),
),
),
provider.BlobSequenceDatum(
step=1,
wall_time=1235.0,
values=(provider.BlobReference(blob_key="step1img0"),),
),
],
},
}
self.assertEqual(actual, expected)
req = data_provider_pb2.ReadBlobSequencesRequest()
req.experiment_id = "123"
req.plugin_filter.plugin_name = "images"
req.run_tag_filter.runs.names.extend(["nope", "test"]) # sorted
req.downsample.num_points = 4
self.stub.ReadBlobSequences.assert_called_once_with(req)
def test_read_blob(self):
responses = [
data_provider_pb2.ReadBlobResponse(data=b"hello wo"),
data_provider_pb2.ReadBlobResponse(data=b"rld"),
]
self.stub.ReadBlob.return_value = responses
actual = self.provider.read_blob(self.ctx, blob_key="myblob")
expected = b"hello world"
self.assertEqual(actual, expected)
req = data_provider_pb2.ReadBlobRequest()
req.blob_key = "myblob"
self.stub.ReadBlob.assert_called_once_with(req)
def test_read_blob_error(self):
def fake_handler(req):
del req # unused
yield data_provider_pb2.ReadBlobResponse(data=b"hello wo"),
raise _grpc_error(grpc.StatusCode.NOT_FOUND, "it ran away!")
self.stub.ReadBlob.side_effect = fake_handler
with self.assertRaisesRegex(errors.NotFoundError, "it ran away!"):
self.provider.read_blob(self.ctx, blob_key="myblob")
def test_rpc_error(self):
# This error handling is implemented with a context manager used
# for all the methods, so take `list_plugins` as representative.
cases = [
(grpc.StatusCode.INVALID_ARGUMENT, errors.InvalidArgumentError),
(grpc.StatusCode.NOT_FOUND, errors.NotFoundError),
(grpc.StatusCode.PERMISSION_DENIED, errors.PermissionDeniedError),
]
for (code, error_type) in cases:
with self.subTest(code.name):
msg = "my favorite cause"
e = _grpc_error(code, msg)
self.stub.ListPlugins.side_effect = [e]
with self.assertRaises(error_type) as cm:
self.provider.list_plugins(self.ctx, experiment_id="123")
self.assertIn(msg, str(cm.exception))
internal = grpc.StatusCode.INTERNAL
with self.subTest(internal.name):
e = _grpc_error(internal, "oops")
self.stub.ListPlugins.side_effect = [e]
with self.assertRaises(grpc.RpcError):
self.provider.list_plugins(self.ctx, experiment_id="123")
def _grpc_error(code, details):
# Monkey patch insertion for the methods a real grpc.RpcError would have.
error = grpc.RpcError("RPC error %r: %s" % (code, details))
error.code = lambda: code
error.details = lambda: details
return error
if __name__ == "__main__":
tb_test.main()