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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
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112 lines
3.9 KiB
112 lines
3.9 KiB
2 years ago
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// Copyright 2023 gRPC authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#include <string>
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#include <vector>
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#include <gmock/gmock.h>
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#include <gtest/gtest.h>
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#include "absl/strings/str_cat.h"
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#include "absl/strings/str_format.h"
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#include <grpc/event_engine/endpoint_config.h>
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#include "src/core/ext/filters/client_channel/backup_poller.h"
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#include "src/proto/grpc/testing/xds/v3/client_side_weighted_round_robin.grpc.pb.h"
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#include "src/proto/grpc/testing/xds/v3/wrr_locality.grpc.pb.h"
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#include "test/core/util/scoped_env_var.h"
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#include "test/cpp/end2end/xds/xds_end2end_test_lib.h"
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namespace grpc {
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namespace testing {
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namespace {
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using ::envoy::extensions::load_balancing_policies::
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client_side_weighted_round_robin::v3::ClientSideWeightedRoundRobin;
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using ::envoy::extensions::load_balancing_policies::wrr_locality::v3::
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WrrLocality;
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using ::grpc_core::testing::ScopedExperimentalEnvVar;
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using WrrTest = XdsEnd2endTest;
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INSTANTIATE_TEST_SUITE_P(XdsTest, WrrTest, ::testing::Values(XdsTestType()),
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&XdsTestType::Name);
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TEST_P(WrrTest, Basic) {
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ScopedExperimentalEnvVar env_var1("GRPC_EXPERIMENTAL_XDS_CUSTOM_LB_CONFIG");
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ScopedExperimentalEnvVar env_var2("GRPC_EXPERIMENTAL_XDS_WRR_LB");
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CreateAndStartBackends(3);
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xds::data::orca::v3::OrcaLoadReport load_report;
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load_report.set_rps_fractional(100);
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load_report.set_cpu_utilization(0.9);
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backends_[0]->backend_service()->set_load_report(load_report);
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load_report.set_cpu_utilization(0.3);
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backends_[1]->backend_service()->set_load_report(load_report);
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backends_[2]->backend_service()->set_load_report(load_report);
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auto cluster = default_cluster_;
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WrrLocality wrr_locality;
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wrr_locality.mutable_endpoint_picking_policy()
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->add_policies()
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->mutable_typed_extension_config()
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->mutable_typed_config()
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->PackFrom(ClientSideWeightedRoundRobin());
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cluster.mutable_load_balancing_policy()
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->add_policies()
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->mutable_typed_extension_config()
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->mutable_typed_config()
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->PackFrom(wrr_locality);
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balancer_->ads_service()->SetCdsResource(cluster);
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EdsResourceArgs args({{"locality0", CreateEndpointsForBackends()}});
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balancer_->ads_service()->SetEdsResource(BuildEdsResource(args));
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size_t num_picks = 0;
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SendRpcsUntil(DEBUG_LOCATION, [&](const RpcResult&) {
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if (++num_picks == 7) {
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gpr_log(GPR_INFO, "request counts: %" PRIuPTR " %" PRIuPTR " %" PRIuPTR,
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backends_[0]->backend_service()->request_count(),
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backends_[1]->backend_service()->request_count(),
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backends_[2]->backend_service()->request_count());
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if (backends_[0]->backend_service()->request_count() == 1 &&
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backends_[1]->backend_service()->request_count() == 3 &&
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backends_[2]->backend_service()->request_count() == 3) {
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return false;
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}
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num_picks = 0;
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ResetBackendCounters();
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}
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return true;
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});
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}
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} // namespace
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} // namespace testing
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} // namespace grpc
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int main(int argc, char** argv) {
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grpc::testing::TestEnvironment env(&argc, argv);
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::testing::InitGoogleTest(&argc, argv);
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// Make the backup poller poll very frequently in order to pick up
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// updates from all the subchannels's FDs.
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GPR_GLOBAL_CONFIG_SET(grpc_client_channel_backup_poll_interval_ms, 1);
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#if TARGET_OS_IPHONE
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// Workaround Apple CFStream bug
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grpc_core::SetEnv("grpc_cfstream", "0");
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#endif
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grpc_init();
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const auto result = RUN_ALL_TESTS();
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grpc_shutdown();
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return result;
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}
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