mirror of
https://github.com/etcd-io/etcd.git
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f2a912a4e6
In these unit tests, goroutines may leak if certain branches are chosen. This commit edits channel operations and buffer sizes, so no matter what branch is chosen, the test will end correctly. This commit doesn't change the semantics of unit tests.
105 lines
2.4 KiB
Go
105 lines
2.4 KiB
Go
// Copyright 2015 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 transport
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import (
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"net"
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"testing"
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"time"
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)
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func TestReadWriteTimeoutDialer(t *testing.T) {
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stop := make(chan struct{})
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ln, err := net.Listen("tcp", "127.0.0.1:0")
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if err != nil {
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t.Fatalf("unexpected listen error: %v", err)
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}
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defer func() {
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stop <- struct{}{}
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}()
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ts := testBlockingServer{ln, 2, stop}
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go ts.Start(t)
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d := rwTimeoutDialer{
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wtimeoutd: 10 * time.Millisecond,
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rdtimeoutd: 10 * time.Millisecond,
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}
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conn, err := d.Dial("tcp", ln.Addr().String())
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if err != nil {
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t.Fatalf("unexpected dial error: %v", err)
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}
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defer conn.Close()
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// fill the socket buffer
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data := make([]byte, 5*1024*1024)
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done := make(chan struct{}, 1)
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go func() {
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_, err = conn.Write(data)
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done <- struct{}{}
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}()
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select {
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case <-done:
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// Wait 5s more than timeout to avoid delay in low-end systems;
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// the slack was 1s extra, but that wasn't enough for CI.
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case <-time.After(d.wtimeoutd*10 + 5*time.Second):
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t.Fatal("wait timeout")
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}
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if operr, ok := err.(*net.OpError); !ok || operr.Op != "write" || !operr.Timeout() {
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t.Errorf("err = %v, want write i/o timeout error", err)
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}
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conn, err = d.Dial("tcp", ln.Addr().String())
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if err != nil {
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t.Fatalf("unexpected dial error: %v", err)
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}
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defer conn.Close()
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buf := make([]byte, 10)
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go func() {
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_, err = conn.Read(buf)
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done <- struct{}{}
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}()
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select {
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case <-done:
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case <-time.After(d.rdtimeoutd * 10):
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t.Fatal("wait timeout")
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}
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if operr, ok := err.(*net.OpError); !ok || operr.Op != "read" || !operr.Timeout() {
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t.Errorf("err = %v, want write i/o timeout error", err)
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}
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}
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type testBlockingServer struct {
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ln net.Listener
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n int
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stop chan struct{}
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}
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func (ts *testBlockingServer) Start(t *testing.T) {
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for i := 0; i < ts.n; i++ {
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conn, err := ts.ln.Accept()
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if err != nil {
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t.Error(err)
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}
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defer conn.Close()
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}
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<-ts.stop
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}
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