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//
//
// Copyright 2016 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.
//
//
/// \file Verify that status ordering rules are obeyed.
/// \ref doc/status_ordering.md
#include <memory>
#include "gtest/gtest.h"
#include <grpc/status.h>
#include "src/core/lib/gprpp/time.h"
#include "test/core/end2end/end2end_tests.h"
namespace grpc_core {
namespace {
// Client sends a request with payload, potentially requesting status early. The
// server reads and streams responses. The client cancels the RPC to get an
// error status. (Server sending a non-OK status is not considered an error
// status.)
CORE_END2END_TEST(CoreEnd2endTest, StreamingErrorResponse) {
auto c = NewClientCall("/foo").Timeout(Duration::Seconds(5)).Create();
CoreEnd2endTest::IncomingMetadata server_initial_metadata;
CoreEnd2endTest::IncomingMessage response_payload1_recv;
c.NewBatch(1)
.SendInitialMetadata({})
.SendCloseFromClient()
.RecvInitialMetadata(server_initial_metadata)
.RecvMessage(response_payload1_recv);
auto s = RequestCall(101);
Expect(101, true);
Step();
s.NewBatch(102).SendInitialMetadata({}).SendMessage("hello");
Expect(102, true);
Expect(1, true);
Step();
s.NewBatch(103).SendMessage("world");
// The success of the op depends on whether the payload is written before the
// transport sees the end of stream. If the stream has been write closed
// before the write completes, it would fail, otherwise it would succeed.
// Since this behavior is dependent on the transport implementation, we allow
// any success status with this op.
Expect(103, AnyStatus());
CoreEnd2endTest::IncomingMessage response_payload2_recv;
c.NewBatch(2).RecvMessage(response_payload2_recv);
Expect(2, true);
Step();
EXPECT_FALSE(response_payload2_recv.is_end_of_stream());
// Cancel the call so that the client sets up an error status.
c.Cancel();
CoreEnd2endTest::IncomingCloseOnServer client_close;
s.NewBatch(104).RecvCloseOnServer(client_close);
Expect(104, true);
Step();
CoreEnd2endTest::IncomingStatusOnClient server_status;
c.NewBatch(3).RecvStatusOnClient(server_status);
Expect(3, true);
Step();
EXPECT_FALSE(response_payload1_recv.is_end_of_stream());
EXPECT_FALSE(response_payload2_recv.is_end_of_stream());
EXPECT_EQ(server_status.status(), GRPC_STATUS_CANCELLED);
EXPECT_TRUE(client_close.was_cancelled());
}
CORE_END2END_TEST(CoreEnd2endTest, StreamingErrorResponseRequestStatusEarly) {
auto c = NewClientCall("/foo").Timeout(Duration::Seconds(5)).Create();
CoreEnd2endTest::IncomingMetadata server_initial_metadata;
CoreEnd2endTest::IncomingMessage response_payload1_recv;
CoreEnd2endTest::IncomingStatusOnClient server_status;
c.NewBatch(1)
.SendInitialMetadata({})
.SendCloseFromClient()
.RecvInitialMetadata(server_initial_metadata)
.RecvMessage(response_payload1_recv)
.RecvStatusOnClient(server_status);
auto s = RequestCall(101);
Expect(101, true);
Step();
s.NewBatch(102).SendInitialMetadata({}).SendMessage("hello");
Expect(102, true);
Step();
s.NewBatch(103).SendMessage("world");
// The success of the op depends on whether the payload is written before the
// transport sees the end of stream. If the stream has been write closed
// before the write completes, it would fail, otherwise it would succeed.
// Since this behavior is dependent on the transport implementation, we allow
// any success status with this op.
Expect(103, AnyStatus());
// Cancel the call so that the client sets up an error status.
c.Cancel();
CoreEnd2endTest::IncomingCloseOnServer client_close;
s.NewBatch(104).RecvCloseOnServer(client_close);
Expect(104, true);
Expect(1, true);
Step();
EXPECT_EQ(server_status.status(), GRPC_STATUS_CANCELLED);
EXPECT_TRUE(client_close.was_cancelled());
}
CORE_END2END_TEST(
CoreEnd2endTest,
StreamingErrorResponseRequestStatusEarlyAndRecvMessageSeparately) {
auto c = NewClientCall("/foo").Timeout(Duration::Seconds(5)).Create();
CoreEnd2endTest::IncomingMetadata server_initial_metadata;
CoreEnd2endTest::IncomingStatusOnClient server_status;
c.NewBatch(1)
.SendInitialMetadata({})
.SendCloseFromClient()
.RecvInitialMetadata(server_initial_metadata)
.RecvStatusOnClient(server_status);
auto s = RequestCall(101);
Expect(101, true);
Step();
s.NewBatch(102).SendInitialMetadata({}).SendMessage("hello");
CoreEnd2endTest::IncomingMessage response_payload1_recv;
c.NewBatch(4).RecvMessage(response_payload1_recv);
Expect(102, true);
Expect(4, true);
Step();
s.NewBatch(103).SendMessage("world");
// The success of the op depends on whether the payload is written before the
// transport sees the end of stream. If the stream has been write closed
// before the write completes, it would fail, otherwise it would succeed.
// Since this behavior is dependent on the transport implementation, we allow
// any success status with this op.
Expect(103, AnyStatus());
// Cancel the call so that the client sets up an error status.
c.Cancel();
CoreEnd2endTest::IncomingCloseOnServer client_close;
s.NewBatch(104).RecvCloseOnServer(client_close);
Expect(104, true);
Expect(1, true);
Step();
EXPECT_EQ(server_status.status(), GRPC_STATUS_CANCELLED);
EXPECT_TRUE(client_close.was_cancelled());
}
} // namespace
} // namespace grpc_core
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