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syscall: make TestFcntlFlock more robust

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Avoid the use of constant absolute temp files in tests.  This could
produce flaky results, for example on multiuser development machines.

Change-Id: Ia76157a0660fbe294bb31a46ded886cea5deec97
Reviewed-on: https://go-review.googlesource.com/40916
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Mostyn Bramley-Moore 2017-04-17 21:32:21 +02:00 committed by Brad Fitzpatrick
parent 69182885d9
commit 16db1892d3
1 changed files with 6 additions and 2 deletions
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8
src/syscall/syscall_unix_test.go
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@ -78,12 +78,16 @@ func TestFcntlFlock(t *testing.T) {
}
if os.Getenv("GO_WANT_HELPER_PROCESS") == "" {
// parent
name := filepath.Join(os.TempDir(), "TestFcntlFlock")
tempDir, err := ioutil.TempDir("", "TestFcntlFlock")
if err != nil {
t.Fatalf("Failed to create temp dir: %v", err)
}
name := filepath.Join(tempDir, "TestFcntlFlock")
fd, err := syscall.Open(name, syscall.O_CREAT|syscall.O_RDWR|syscall.O_CLOEXEC, 0)
if err != nil {
t.Fatalf("Open failed: %v", err)
}
defer syscall.Unlink(name)
defer os.RemoveAll(tempDir)
defer syscall.Close(fd)
if err := syscall.Ftruncate(fd, 1<<20); err != nil {
t.Fatalf("Ftruncate(1<<20) failed: %v", err)