mirror of https://github.com/grpc/grpc-go.git
79 lines
2.3 KiB
Go
79 lines
2.3 KiB
Go
/*
|
|
*
|
|
* Copyright 2019 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.
|
|
*
|
|
*/
|
|
|
|
package test
|
|
|
|
import (
|
|
"context"
|
|
"testing"
|
|
"time"
|
|
|
|
"google.golang.org/grpc/codes"
|
|
"google.golang.org/grpc/metadata"
|
|
"google.golang.org/grpc/status"
|
|
testpb "google.golang.org/grpc/test/grpc_testing"
|
|
)
|
|
|
|
func (s) TestContextCanceled(t *testing.T) {
|
|
ss := &stubServer{
|
|
fullDuplexCall: func(stream testpb.TestService_FullDuplexCallServer) error {
|
|
stream.SetTrailer(metadata.New(map[string]string{"a": "b"}))
|
|
return status.Error(codes.PermissionDenied, "perm denied")
|
|
},
|
|
}
|
|
if err := ss.Start(nil); err != nil {
|
|
t.Fatalf("Error starting endpoint server: %v", err)
|
|
}
|
|
defer ss.Stop()
|
|
|
|
var i, cntCanceled uint
|
|
cntPermDenied := func() uint {
|
|
return i - cntCanceled
|
|
}
|
|
for i, cntCanceled = 0, 0; i < 500 && (cntCanceled < 5 || cntPermDenied() < 5); i++ {
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
|
|
str, err := ss.client.FullDuplexCall(ctx)
|
|
if err != nil {
|
|
t.Fatalf("%v.FullDuplexCall(_) = _, %v, want <nil>", ss.client, err)
|
|
}
|
|
// As this duration goes up chances of Recv returning Cancelled will decrease.
|
|
time.Sleep(time.Duration(i) * time.Microsecond)
|
|
cancel()
|
|
_, err = str.Recv()
|
|
if err == nil {
|
|
t.Fatalf("non-nil error expected from Recv()")
|
|
}
|
|
code := status.Code(err)
|
|
if code == codes.Canceled {
|
|
cntCanceled++
|
|
}
|
|
_, ok := str.Trailer()["a"]
|
|
if code == codes.PermissionDenied && !ok {
|
|
t.Fatalf(`status err: %v; wanted key "a" in trailer but didn't get it`, err)
|
|
}
|
|
if code == codes.Canceled && ok {
|
|
t.Fatalf(`status err: %v; didn't want key "a" in trailer but got it`, err)
|
|
}
|
|
}
|
|
if cntCanceled < 5 || cntPermDenied() < 5 {
|
|
t.Fatalf("got Canceled status %v times and PermissionDenied status %v times but wanted both of them at least 5 times", cntCanceled, cntPermDenied())
|
|
}
|
|
}
|