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test: use T.TempDir to create temporary test directory (#21043)

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A testing cleanup. 

This pull request replaces `os.MkdirTemp` with `t.TempDir`. We can use the `T.TempDir` function from the `testing` package to create temporary directory. The directory created by `T.TempDir` is automatically removed when the test and all its subtests complete. 

This saves us at least 2 lines (error check, and cleanup) on every instance, or in some cases adds cleanup that we forgot.

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

```go
func TestFoo(t *testing.T) {
	// before
	tmpDir, err := os.MkdirTemp("", "")
	require.NoError(t, err)
	defer os.RemoveAll(tmpDir)

	// now
	tmpDir := t.TempDir()
}
```

Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
This commit is contained in:
Eng Zer Jun 2022-09-04 23:14:53 +08:00 • committed by GitHub
parent c722a26e7e
commit 8b0aaa5f86
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GPG key ID: 4AEE18F83AFDEB23
24 changed files with 57 additions and 194 deletions
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4
models/db/engine_test.go
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@ -5,7 +5,6 @@
package db_test
import (
"os"
"path/filepath"
"testing"
@ -20,8 +19,7 @@ import (
func TestDumpDatabase(t *testing.T) {
assert.NoError(t, unittest.PrepareTestDatabase())
dir, err := os.MkdirTemp(os.TempDir(), "dump")
assert.NoError(t, err)
dir := t.TempDir()
type Version struct {
ID int64 `xorm:"pk autoincr"`