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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
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117 lines
3.5 KiB
117 lines
3.5 KiB
// |
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// |
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// Copyright 2017 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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// |
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#include <memory> |
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#include "absl/types/optional.h" |
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#include "gtest/gtest.h" |
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#include <grpc/impl/channel_arg_names.h> |
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#include <grpc/status.h> |
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#include "src/core/lib/channel/channel_args.h" |
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#include "src/core/lib/gprpp/time.h" |
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#include "test/core/end2end/end2end_tests.h" |
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namespace grpc_core { |
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// Tests a basic retry scenario: |
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// - 2 retries allowed for ABORTED status |
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// - first attempt returns ABORTED |
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// - second attempt returns OK |
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CORE_END2END_TEST(RetryTest, Retry) { |
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InitServer(ChannelArgs()); |
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InitClient(ChannelArgs().Set( |
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GRPC_ARG_SERVICE_CONFIG, |
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"{\n" |
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" \"methodConfig\": [ {\n" |
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" \"name\": [\n" |
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" { \"service\": \"service\", \"method\": \"method\" }\n" |
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" ],\n" |
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" \"retryPolicy\": {\n" |
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" \"maxAttempts\": 3,\n" |
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" \"initialBackoff\": \"1s\",\n" |
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" \"maxBackoff\": \"120s\",\n" |
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" \"backoffMultiplier\": 1.6,\n" |
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" \"retryableStatusCodes\": [ \"ABORTED\" ]\n" |
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" }\n" |
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" } ]\n" |
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"}")); |
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auto c = |
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NewClientCall("/service/method").Timeout(Duration::Seconds(5)).Create(); |
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EXPECT_NE(c.GetPeer(), absl::nullopt); |
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IncomingStatusOnClient server_status; |
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IncomingMetadata server_initial_metadata; |
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IncomingMessage server_message; |
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c.NewBatch(1) |
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.SendInitialMetadata({}) |
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.SendMessage("foo") |
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.RecvMessage(server_message) |
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.SendCloseFromClient() |
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.RecvInitialMetadata(server_initial_metadata) |
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.RecvStatusOnClient(server_status); |
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auto s = RequestCall(101); |
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Expect(101, true); |
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Step(); |
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// Make sure the "grpc-previous-rpc-attempts" header was not sent in the |
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// initial attempt. |
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EXPECT_EQ(s.GetInitialMetadata("grpc-previous-rpc-attempts"), absl::nullopt); |
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EXPECT_NE(s.GetPeer(), absl::nullopt); |
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EXPECT_NE(c.GetPeer(), absl::nullopt); |
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IncomingCloseOnServer client_close; |
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s.NewBatch(102) |
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.SendInitialMetadata({}) |
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.SendStatusFromServer(GRPC_STATUS_ABORTED, "xyz", {}) |
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.RecvCloseOnServer(client_close); |
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Expect(102, true); |
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Step(); |
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auto s2 = RequestCall(201); |
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Expect(201, true); |
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Step(); |
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// Make sure the "grpc-previous-rpc-attempts" header was sent in the retry. |
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EXPECT_EQ(s2.GetInitialMetadata("grpc-previous-rpc-attempts"), "1"); |
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EXPECT_NE(s2.GetPeer(), absl::nullopt); |
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EXPECT_NE(c.GetPeer(), absl::nullopt); |
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IncomingMessage server_message2; |
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s2.NewBatch(202) |
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.SendInitialMetadata({}) |
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.RecvMessage(server_message2) |
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.SendMessage("bar"); |
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IncomingCloseOnServer client_close2; |
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s2.NewBatch(203) |
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.SendStatusFromServer(GRPC_STATUS_OK, "xyz", {}) |
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.RecvCloseOnServer(client_close2); |
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Expect(202, true); |
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Expect(203, true); |
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Expect(1, true); |
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Step(); |
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EXPECT_EQ(server_status.status(), GRPC_STATUS_OK); |
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EXPECT_EQ(server_status.message(), "xyz"); |
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EXPECT_EQ(s.method(), "/service/method"); |
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EXPECT_FALSE(client_close2.was_cancelled()); |
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} |
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} // namespace grpc_core
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