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tests: deflake TestEtcdTLSVersion

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The proc.Stop just sends the SIGTERM to etcd server. The etcd server
needs time to teardown. If we don't wait for it, the etcd server will
hold the port and then next test case, like TestGrpcProxyAutoSync, will
fail to listen on the port 20000.

```bash
file_/__w/etcd/etcd/tests/fixtures/server.crt_--peer-key-file_/__w/etcd/etcd/tests/fixtures/server.key.insecure_--cert-file_/__w/etcd/etcd/tests/fixtures/server2.crt_--key-file_/__w/etcd/etcd/tests/fixtures/server2.key.insecure_--tls-min-version_TLS1.2_--tls-max-version_TLS1.3) (32856): {"level":"info","ts":"2023-10-13T06:12:32.718845Z","caller":"embed/etcd.go:394","msg":"closing etcd server","name":"e1","data-dir":"/tmp/TestEtcdTLSVersion284993522/001","advertise-peer-urls":["https://127.0.0.1:20000"],"advertise-client-urls":["https://0.0.0.0:0"]}
2023-10-13T06:12:32.7399709Z --- PASS: TestEtcdTLSVersion (1.03s)
2023-10-13T06:12:32.7400181Z === RUN   TestGrpcProxyAutoSync
2023-10-13T06:12:32.7401203Z     logger.go:130: 2023-10-13T06:12:32.719Z	INFO	starting server...	{"name": "TestGrpcProxyAutoSync-test-0"}
2023-10-13T06:12:32.7408306Z     logger.go:130: 2023-10-13T06:12:32.719Z	INFO	spawning process	{"args": ["/__w/etcd/etcd/bin/etcd", "--name=TestGrpcProxyAutoSync-test-0", "--listen-client-urls=http://localhost:20000", "--advertise-client-urls=http://localhost:20000", "--listen-peer-urls=http://localhost:20001", "--initial-advertise-peer-urls=http://localhost:20001", "--initial-cluster-token=new", "--data-dir", "/tmp/TestGrpcProxyAutoSync1139610722/001", "--snapshot-count=10000", "--initial-cluster-token=new", "--initial-cluster=TestGrpcProxyAutoSync-test-0=http://localhost:20001", "--initial-cluster-state=new"], "working-dir": "/__w/etcd/etcd/tests/e2e", "name": "TestGrpcProxyAutoSync-test-0", "environment-variables": ["ETCD_VERIFY=all", "EXPECT_DEBUG=true", "PATH=/__t/go/1.21.3/x64/bin:/go/bin:/__t/go/1.21.3/x64/bin:/go/bin:/usr/local/go/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", "ETCD_UNSUPPORTED_ARCH=amd64"]}

...

2023-10-13T06:12:32.7559855Z /__w/etcd/etcd/bin/etcd (TestGrpcProxyAutoSync-test-0) (32863): {"level":"fatal","ts":"2023-10-13T06:12:32.735191Z","caller":"etcdmain/etcd.go:181","msg":"discovery failed","error":"listen tcp 127.0.0.1:20000: bind: address already in use","stacktrace":"go.etcd.io/etcd/server/v3/etcdmain.startEtcdOrProxyV2\n\tgo.etcd.io/etcd/server/v3/etcdmain/etcd.go:181\ngo.etcd.io/etcd/server/v3/etcdmain.Main\n\tgo.etcd.io/etcd/server/v3/etcdmain/main.go:40\nmain.main\n\tgo.etcd.io/etcd/server/v3/main.go:31\nruntime.main\n\truntime/proc.go:267"}
```

Signed-off-by: Wei Fu <fuweid89@gmail.com>
This commit is contained in:
Wei Fu 2023-10-13 15:59:20 +08:00
parent 1caf1d32fc
commit 6f95ea04be
1 changed files with 2 additions and 0 deletions
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2
tests/e2e/etcd_config_test.go
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@ -449,4 +449,6 @@ func TestEtcdTLSVersion(t *testing.T) {
assert.NoError(t, e2e.WaitReadyExpectProc(context.TODO(), proc, e2e.EtcdServerReadyLines), "did not receive expected output from etcd process")
assert.NoError(t, proc.Stop())
proc.Wait() // ensure the port has been released
proc.Close()
}