etcd/clientv3/integration/black_hole_test.go

75 lines
2.1 KiB
Go

// Copyright 2017 The etcd 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.
// +build !cluster_proxy
package integration
import (
"context"
"testing"
"time"
"github.com/coreos/etcd/clientv3"
"github.com/coreos/etcd/integration"
"github.com/coreos/etcd/pkg/testutil"
)
func TestBlackholePutWithoutKeealiveEnabled(t *testing.T) {
defer testutil.AfterTest(t)
clus := integration.NewClusterV3(t, &integration.ClusterConfig{
Size: 2,
GRPCKeepAliveMinTime: 1 * time.Millisecond,
SkipCreatingClient: true},
) // avoid too_many_pings
defer clus.Terminate(t)
ccfg := clientv3.Config{
Endpoints: []string{clus.Members[0].GRPCAddr()},
DialTimeout: 1 * time.Second,
}
cli, err := clientv3.New(ccfg)
if err != nil {
t.Fatal(err)
}
defer cli.Close()
// wait for eps[0] to be pinned
ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
_, err = cli.Get(ctx, "foo")
cancel()
if err != nil {
t.Fatal(err)
}
cli.SetEndpoints(clus.Members[0].GRPCAddr(), clus.Members[1].GRPCAddr())
clus.Members[0].Blackhole()
// fail first due to blackhole, retry should succeed
// when gRPC supports better retry on non-delivered request, the first put can succeed.
ctx, c1 := context.WithTimeout(context.Background(), time.Second)
defer c1()
if _, err = cli.Put(ctx, "foo", "bar"); err != context.DeadlineExceeded {
t.Fatalf("err = %v, want %v", err, context.DeadlineExceeded)
}
ctx, c2 := context.WithTimeout(context.Background(), time.Second)
defer c2()
if _, err = cli.Put(ctx, "foo", "bar"); err != nil {
t.Errorf("put failed with error %v", err)
}
}