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#
# Copyright (C) 2019 Bloomberg Finance LP
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library. If not, see <http://www.gnu.org/licenses/>.
#
# Pylint doesn't play well with fixtures and dependency injection from pytest
# pylint: disable=redefined-outer-name
from contextlib import contextmanager
import os
import pytest
import grpc
from buildstream.testing import cli # pylint: disable=unused-import
from tests.testutils import create_artifact_share, assert_shared
# Project directory
DATA_DIR = os.path.join(os.path.dirname(os.path.realpath(__file__)), "project",)
@contextmanager
def limit_grpc_message_length(limit):
orig_insecure_channel = grpc.insecure_channel
def new_insecure_channel(target):
return orig_insecure_channel(
target, options=(("grpc.max_send_message_length", limit),)
)
grpc.insecure_channel = new_insecure_channel
try:
yield
finally:
grpc.insecure_channel = orig_insecure_channel
@pytest.mark.datafiles(DATA_DIR)
def test_large_directory(cli, tmpdir, datafiles):
project = str(datafiles)
# Number of files chosen to ensure the complete list of digests exceeds
# our 1 MB gRPC message limit. I.e., test message splitting.
MAX_MESSAGE_LENGTH = 1024 * 1024
NUM_FILES = MAX_MESSAGE_LENGTH // 64 + 1
large_directory_dir = os.path.join(project, "files", "large-directory")
os.mkdir(large_directory_dir)
for i in range(NUM_FILES):
with open(os.path.join(large_directory_dir, str(i)), "w") as f:
# The files need to have different content as we want different digests.
f.write(str(i))
with create_artifact_share(os.path.join(str(tmpdir), "artifactshare")) as share:
# Configure bst to push to the artifact share
cli.configure({"artifacts": [{"url": share.repo, "push": True},]})
# Enforce 1 MB gRPC message limit
with limit_grpc_message_length(MAX_MESSAGE_LENGTH):
# Build and push
result = cli.run(
project=project, args=["build", "import-large-directory.bst"]
)
result.assert_success()
# Assert that we are now cached locally
assert cli.get_element_state(project, "import-large-directory.bst") == "cached"
# Assert that the push was successful
assert_shared(cli, share, project, "import-large-directory.bst")
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