| /* |
| * |
| * Copyright 2017 gRPC authors. |
| * |
| * 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. |
| * |
| */ |
| |
| #include "src/core/lib/channel/channel_stack_builder.h" |
| |
| #include <limits.h> |
| #include <string.h> |
| |
| #include <algorithm> |
| |
| #include "absl/status/status.h" |
| #include "gtest/gtest.h" |
| |
| #include <grpc/grpc.h> |
| #include <grpc/grpc_security.h> |
| #include <grpc/support/log.h> |
| |
| #include "src/core/lib/channel/channel_stack.h" |
| #include "src/core/lib/channel/channel_stack_builder_impl.h" |
| #include "src/core/lib/config/core_configuration.h" |
| #include "src/core/lib/iomgr/closure.h" |
| #include "src/core/lib/iomgr/error.h" |
| #include "src/core/lib/surface/channel_init.h" |
| #include "test/core/util/test_config.h" |
| |
| namespace grpc_core { |
| namespace testing { |
| namespace { |
| |
| grpc_error_handle ChannelInitFunc(grpc_channel_element* /*elem*/, |
| grpc_channel_element_args* /*args*/) { |
| return absl::OkStatus(); |
| } |
| |
| grpc_error_handle CallInitFunc(grpc_call_element* /*elem*/, |
| const grpc_call_element_args* /*args*/) { |
| return absl::OkStatus(); |
| } |
| |
| void ChannelDestroyFunc(grpc_channel_element* /*elem*/) {} |
| |
| void CallDestroyFunc(grpc_call_element* /*elem*/, |
| const grpc_call_final_info* /*final_info*/, |
| grpc_closure* /*ignored*/) {} |
| |
| bool g_replacement_fn_called = false; |
| bool g_original_fn_called = false; |
| |
| void SetReplacementFnCalled(grpc_channel_stack*, grpc_channel_element*) { |
| g_replacement_fn_called = true; |
| } |
| |
| void SetOriginalFnCalled(grpc_channel_stack*, grpc_channel_element*) { |
| g_original_fn_called = true; |
| } |
| |
| TEST(ChannelStackBuilderTest, ReplaceFilter) { |
| grpc_channel_credentials* creds = grpc_insecure_credentials_create(); |
| grpc_channel* channel = |
| grpc_channel_create("target name isn't used", creds, nullptr); |
| grpc_channel_credentials_release(creds); |
| GPR_ASSERT(channel != nullptr); |
| // Make sure the high priority filter has been created. |
| GPR_ASSERT(g_replacement_fn_called); |
| // ... and that the low priority one hasn't. |
| GPR_ASSERT(!g_original_fn_called); |
| grpc_channel_destroy(channel); |
| } |
| |
| const grpc_channel_filter replacement_filter = { |
| grpc_call_next_op, nullptr, |
| grpc_channel_next_op, 0, |
| CallInitFunc, grpc_call_stack_ignore_set_pollset_or_pollset_set, |
| CallDestroyFunc, 0, |
| ChannelInitFunc, SetReplacementFnCalled, |
| ChannelDestroyFunc, grpc_channel_next_get_info, |
| "filter_name"}; |
| |
| const grpc_channel_filter original_filter = { |
| grpc_call_next_op, nullptr, |
| grpc_channel_next_op, 0, |
| CallInitFunc, grpc_call_stack_ignore_set_pollset_or_pollset_set, |
| CallDestroyFunc, 0, |
| ChannelInitFunc, SetOriginalFnCalled, |
| ChannelDestroyFunc, grpc_channel_next_get_info, |
| "filter_name"}; |
| |
| bool AddReplacementFilter(ChannelStackBuilder* builder) { |
| // Get rid of any other version of the filter, as determined by having the |
| // same name. |
| auto* stk = builder->mutable_stack(); |
| stk->erase(std::remove_if(stk->begin(), stk->end(), |
| [](const grpc_channel_filter* entry) { |
| return strcmp(entry->name, "filter_name") == 0; |
| }), |
| stk->end()); |
| builder->PrependFilter(&replacement_filter); |
| return true; |
| } |
| |
| bool AddOriginalFilter(ChannelStackBuilder* builder) { |
| builder->PrependFilter(&original_filter); |
| return true; |
| } |
| |
| TEST(ChannelStackBuilder, UnknownTarget) { |
| ChannelStackBuilderImpl builder("alpha-beta-gamma", GRPC_CLIENT_CHANNEL); |
| EXPECT_EQ(builder.target(), "unknown"); |
| } |
| |
| } // namespace |
| } // namespace testing |
| } // namespace grpc_core |
| |
| int main(int argc, char** argv) { |
| ::testing::InitGoogleTest(&argc, argv); |
| grpc::testing::TestEnvironment env(&argc, argv); |
| grpc_core::CoreConfiguration::RegisterBuilder( |
| [](grpc_core::CoreConfiguration::Builder* builder) { |
| builder->channel_init()->RegisterStage( |
| GRPC_CLIENT_CHANNEL, INT_MAX, |
| grpc_core::testing::AddOriginalFilter); |
| builder->channel_init()->RegisterStage( |
| GRPC_CLIENT_CHANNEL, INT_MAX, |
| grpc_core::testing::AddReplacementFilter); |
| }); |
| grpc_init(); |
| int ret = RUN_ALL_TESTS(); |
| grpc_shutdown(); |
| return ret; |
| } |