mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
6e2fe84ebd
prefixArgs uses os.Setenv in e2e tests instead envMap. This creates overwrites in some test cases and have an impact on test quality and isolation between tests. This PR uses ctlcontext envMap in each tests with high priority and merges os environment variables with low priority.
116 lines
2.8 KiB
Go
116 lines
2.8 KiB
Go
// Copyright 2016 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.
|
|
|
|
package e2e
|
|
|
|
import (
|
|
"os"
|
|
"strings"
|
|
"testing"
|
|
"time"
|
|
|
|
"go.etcd.io/etcd/pkg/v3/expect"
|
|
)
|
|
|
|
func TestCtlV3Elect(t *testing.T) {
|
|
testCtl(t, testElect)
|
|
}
|
|
|
|
func testElect(cx ctlCtx) {
|
|
name := "a"
|
|
|
|
holder, ch, err := ctlV3Elect(cx, name, "p1")
|
|
if err != nil {
|
|
cx.t.Fatal(err)
|
|
}
|
|
|
|
l1 := ""
|
|
select {
|
|
case <-time.After(2 * time.Second):
|
|
cx.t.Fatalf("timed out electing")
|
|
case l1 = <-ch:
|
|
if !strings.HasPrefix(l1, name) {
|
|
cx.t.Errorf("got %q, expected %q prefix", l1, name)
|
|
}
|
|
}
|
|
|
|
// blocked process that won't win the election
|
|
blocked, ch, err := ctlV3Elect(cx, name, "p2")
|
|
if err != nil {
|
|
cx.t.Fatal(err)
|
|
}
|
|
select {
|
|
case <-time.After(100 * time.Millisecond):
|
|
case <-ch:
|
|
cx.t.Fatalf("should block")
|
|
}
|
|
|
|
// overlap with a blocker that will win the election
|
|
blockAcquire, ch, err := ctlV3Elect(cx, name, "p2")
|
|
if err != nil {
|
|
cx.t.Fatal(err)
|
|
}
|
|
defer blockAcquire.Stop()
|
|
select {
|
|
case <-time.After(100 * time.Millisecond):
|
|
case <-ch:
|
|
cx.t.Fatalf("should block")
|
|
}
|
|
|
|
// kill blocked process with clean shutdown
|
|
if err = blocked.Signal(os.Interrupt); err != nil {
|
|
cx.t.Fatal(err)
|
|
}
|
|
if err = closeWithTimeout(blocked, time.Second); err != nil {
|
|
cx.t.Fatal(err)
|
|
}
|
|
|
|
// kill the holder with clean shutdown
|
|
if err = holder.Signal(os.Interrupt); err != nil {
|
|
cx.t.Fatal(err)
|
|
}
|
|
if err = closeWithTimeout(holder, time.Second); err != nil {
|
|
cx.t.Fatal(err)
|
|
}
|
|
|
|
// blockAcquire should win the election
|
|
select {
|
|
case <-time.After(time.Second):
|
|
cx.t.Fatalf("timed out from waiting to holding")
|
|
case l2 := <-ch:
|
|
if l1 == l2 || !strings.HasPrefix(l2, name) {
|
|
cx.t.Fatalf("expected different elect name, got l1=%q, l2=%q", l1, l2)
|
|
}
|
|
}
|
|
}
|
|
|
|
// ctlV3Elect creates a elect process with a channel listening for when it wins the election.
|
|
func ctlV3Elect(cx ctlCtx, name, proposal string) (*expect.ExpectProcess, <-chan string, error) {
|
|
cmdArgs := append(cx.PrefixArgs(), "elect", name, proposal)
|
|
proc, err := spawnCmd(cmdArgs, cx.envMap)
|
|
outc := make(chan string, 1)
|
|
if err != nil {
|
|
close(outc)
|
|
return proc, outc, err
|
|
}
|
|
go func() {
|
|
s, xerr := proc.ExpectFunc(func(string) bool { return true })
|
|
if xerr != nil {
|
|
cx.t.Errorf("expect failed (%v)", xerr)
|
|
}
|
|
outc <- s
|
|
}()
|
|
return proc, outc, err
|
|
}
|