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test: use T.TempDir to create temporary test directory (#15400)

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This commit replaces `ioutil.TempDir` with `t.TempDir` in tests. The
directory created by `t.TempDir` is automatically removed when the test
and all its subtests complete.

Prior to this commit, temporary directory created using `ioutil.TempDir`
needs to be removed manually by calling `os.RemoveAll`, which is omitted
in some tests. The error handling boilerplate e.g.
	defer func() {
		if err := os.RemoveAll(dir); err != nil {
			t.Fatal(err)
		}
	}
is also tedious, but `t.TempDir` handles this for us nicely.

Reference: https://pkg.go.dev/testing#T.TempDir

Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
This commit is contained in:
Eng Zer Jun
2022-07-26 03:37:26 +08:00
committed by GitHub
parent f23f442d33
commit 0a3b1ad4eb
24 changed files with 137 additions and 412 deletions
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13
internal/lock/lock_test.go
View File

@@ -46,18 +46,9 @@ func TestLockFail(t *testing.T) {
// Tests lock directory fail.
func TestLockDirFail(t *testing.T) {
d, err := ioutil.TempDir("", "lockDir")
if err != nil {
t.Fatal(err)
}
defer func() {
err = os.Remove(d)
if err != nil {
t.Fatal(err)
}
}()
d := t.TempDir()
_, err = LockedOpenFile(d, os.O_APPEND, 0o600)
_, err := LockedOpenFile(d, os.O_APPEND, 0o600)
if err == nil {
t.Fatal("Should fail here")
}