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all: fix incorrect channel and API usage in some unit tests

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This CL changes some unit test functions, making sure that these tests (and goroutines spawned during test) won't block.
Since they are just test functions, I use one CL to fix them all. I hope this won't cause trouble to reviewers and can save time for us.
There are three main categories of incorrect logic fixed by this CL:
1. Use testing.Fatal()/Fatalf() in spawned goroutines, which is forbidden by Go's document.
2. Channels are used in such a way that, when errors or timeout happen, the test will be blocked and never return.
3. Channels are used in such a way that, when errors or timeout happen, the test can return but some spawned goroutines will be leaked, occupying resource until all other tests return and the process is killed.

Change-Id: I3df931ec380794a0cf1404e632c1dd57c65d63e8
Reviewed-on: https://go-review.googlesource.com/c/go/+/219380
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Ziheng Liu 2020-02-13 16:20:30 -05:00 • committed by Ian Lance Taylor
parent 008ada74ec
commit 5cb310fdd2
3 changed files with 30 additions and 6 deletions
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5
handshake_server_test.go
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@ -182,7 +182,7 @@ func TestRenegotiationExtension(t *testing.T) {
cipherSuites: []uint16{TLS_RSA_WITH_RC4_128_SHA},
}
bufChan := make(chan []byte)
bufChan := make(chan []byte, 1)
c, s := localPipe(t)
go func() {
@ -575,11 +575,12 @@ func (test *serverTest) connFromCommand() (conn *recordingConn, child *exec.Cmd,
return nil, nil, err
}
connChan := make(chan interface{})
connChan := make(chan interface{}, 1)
go func() {
tcpConn, err := l.Accept()
if err != nil {
connChan <- err
return
}
connChan <- tcpConn
}()