132 lines
3.2 KiB
Go
132 lines
3.2 KiB
Go
// Copyright 2016 The etcd 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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package clientv3
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import (
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"fmt"
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"net"
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"testing"
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"time"
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"github.com/coreos/etcd/etcdserver/api/v3rpc/rpctypes"
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"github.com/coreos/etcd/pkg/testutil"
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"golang.org/x/net/context"
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"google.golang.org/grpc"
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)
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func TestDialCancel(t *testing.T) {
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defer testutil.AfterTest(t)
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// accept first connection so client is created with dial timeout
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ln, err := net.Listen("unix", "dialcancel:12345")
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if err != nil {
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t.Fatal(err)
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}
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defer ln.Close()
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ep := "unix://dialcancel:12345"
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cfg := Config{
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Endpoints: []string{ep},
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DialTimeout: 30 * time.Second}
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c, err := New(cfg)
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if err != nil {
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t.Fatal(err)
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}
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// connect to ipv4 blackhole so dial blocks
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c.SetEndpoints("http://254.0.0.1:12345")
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// issue Get to force redial attempts
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go c.Get(context.TODO(), "abc")
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// wait a little bit so client close is after dial starts
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time.Sleep(100 * time.Millisecond)
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donec := make(chan struct{})
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go func() {
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defer close(donec)
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c.Close()
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}()
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select {
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case <-time.After(5 * time.Second):
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t.Fatalf("failed to close")
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case <-donec:
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}
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}
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func TestDialTimeout(t *testing.T) {
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defer testutil.AfterTest(t)
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donec := make(chan error)
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go func() {
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// without timeout, dial continues forever on ipv4 blackhole
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cfg := Config{
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Endpoints: []string{"http://254.0.0.1:12345"},
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DialTimeout: 2 * time.Second}
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c, err := New(cfg)
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if c != nil || err == nil {
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t.Errorf("new client should fail")
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}
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donec <- err
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}()
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time.Sleep(10 * time.Millisecond)
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select {
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case err := <-donec:
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t.Errorf("dial didn't wait (%v)", err)
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default:
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}
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select {
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case <-time.After(5 * time.Second):
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t.Errorf("failed to timeout dial on time")
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case err := <-donec:
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if err != grpc.ErrClientConnTimeout {
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t.Errorf("unexpected error %v, want %v", err, grpc.ErrClientConnTimeout)
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}
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}
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}
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func TestDialNoTimeout(t *testing.T) {
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cfg := Config{Endpoints: []string{"127.0.0.1:12345"}}
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c, err := New(cfg)
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if c == nil || err != nil {
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t.Fatalf("new client with DialNoWait should succeed, got %v", err)
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}
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c.Close()
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}
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func TestIsHaltErr(t *testing.T) {
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if !isHaltErr(nil, fmt.Errorf("etcdserver: some etcdserver error")) {
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t.Errorf(`error prefixed with "etcdserver: " should be Halted by default`)
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}
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if isHaltErr(nil, rpctypes.ErrGRPCStopped) {
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t.Errorf("error %v should not halt", rpctypes.ErrGRPCStopped)
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}
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if isHaltErr(nil, rpctypes.ErrGRPCNoLeader) {
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t.Errorf("error %v should not halt", rpctypes.ErrGRPCNoLeader)
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}
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ctx, cancel := context.WithCancel(context.TODO())
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if isHaltErr(ctx, nil) {
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t.Errorf("no error and active context should not be Halted")
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}
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cancel()
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if !isHaltErr(ctx, nil) {
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t.Errorf("cancel on context should be Halted")
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}
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}
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