3 * Copyright 2016 gRPC authors.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
18 * Client used to test http2 error edge cases like GOAWAYs and RST_STREAMs
21 * https://github.com/grpc/grpc/blob/master/doc/negative-http2-interop-test-descriptions.md
33 "golang.org/x/net/context"
34 "google.golang.org/grpc"
35 "google.golang.org/grpc/codes"
36 "google.golang.org/grpc/grpclog"
37 "google.golang.org/grpc/interop"
38 testpb "google.golang.org/grpc/interop/grpc_testing"
42 serverHost = flag.String("server_host", "127.0.0.1", "The server host name")
43 serverPort = flag.Int("server_port", 8080, "The server port number")
44 testCase = flag.String("test_case", "goaway",
45 `Configure different test cases. Valid options are:
46 goaway : client sends two requests, the server will send a goaway in between;
47 rst_after_header : server will send rst_stream after it sends headers;
48 rst_during_data : server will send rst_stream while sending data;
49 rst_after_data : server will send rst_stream after sending data;
50 ping : server will send pings between each http2 frame;
51 max_streams : server will ensure that the max_concurrent_streams limit is upheld;`)
53 largeRespSize = 314159
56 func largeSimpleRequest() *testpb.SimpleRequest {
57 pl := interop.ClientNewPayload(testpb.PayloadType_COMPRESSABLE, largeReqSize)
58 return &testpb.SimpleRequest{
59 ResponseType: testpb.PayloadType_COMPRESSABLE,
60 ResponseSize: int32(largeRespSize),
65 // sends two unary calls. The server asserts that the calls use different connections.
66 func goaway(tc testpb.TestServiceClient) {
67 interop.DoLargeUnaryCall(tc)
68 // sleep to ensure that the client has time to recv the GOAWAY.
69 // TODO(ncteisen): make this less hacky.
70 time.Sleep(1 * time.Second)
71 interop.DoLargeUnaryCall(tc)
74 func rstAfterHeader(tc testpb.TestServiceClient) {
75 req := largeSimpleRequest()
76 reply, err := tc.UnaryCall(context.Background(), req)
78 grpclog.Fatalf("Client received reply despite server sending rst stream after header")
80 if grpc.Code(err) != codes.Internal {
81 grpclog.Fatalf("%v.UnaryCall() = _, %v, want _, %v", tc, grpc.Code(err), codes.Internal)
85 func rstDuringData(tc testpb.TestServiceClient) {
86 req := largeSimpleRequest()
87 reply, err := tc.UnaryCall(context.Background(), req)
89 grpclog.Fatalf("Client received reply despite server sending rst stream during data")
91 if grpc.Code(err) != codes.Unknown {
92 grpclog.Fatalf("%v.UnaryCall() = _, %v, want _, %v", tc, grpc.Code(err), codes.Unknown)
96 func rstAfterData(tc testpb.TestServiceClient) {
97 req := largeSimpleRequest()
98 reply, err := tc.UnaryCall(context.Background(), req)
100 grpclog.Fatalf("Client received reply despite server sending rst stream after data")
102 if grpc.Code(err) != codes.Internal {
103 grpclog.Fatalf("%v.UnaryCall() = _, %v, want _, %v", tc, grpc.Code(err), codes.Internal)
107 func ping(tc testpb.TestServiceClient) {
108 // The server will assert that every ping it sends was ACK-ed by the client.
109 interop.DoLargeUnaryCall(tc)
112 func maxStreams(tc testpb.TestServiceClient) {
113 interop.DoLargeUnaryCall(tc)
114 var wg sync.WaitGroup
115 for i := 0; i < 15; i++ {
119 interop.DoLargeUnaryCall(tc)
127 serverAddr := net.JoinHostPort(*serverHost, strconv.Itoa(*serverPort))
128 var opts []grpc.DialOption
129 opts = append(opts, grpc.WithInsecure())
130 conn, err := grpc.Dial(serverAddr, opts...)
132 grpclog.Fatalf("Fail to dial: %v", err)
135 tc := testpb.NewTestServiceClient(conn)
139 grpclog.Println("goaway done")
140 case "rst_after_header":
142 grpclog.Println("rst_after_header done")
143 case "rst_during_data":
145 grpclog.Println("rst_during_data done")
146 case "rst_after_data":
148 grpclog.Println("rst_after_data done")
151 grpclog.Println("ping done")
154 grpclog.Println("max_streams done")
156 grpclog.Fatal("Unsupported test case: ", *testCase)