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temp.go
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temp.go
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package testutil
import (
"os"
"testing"
"github.com/stretchr/testify/require"
)
// TempFile returns the name of a temporary file that does not exist.
func TempFile(t *testing.T, dir, pattern string) string {
t.Helper()
if dir == "" {
dir = t.TempDir()
}
f, err := os.CreateTemp(dir, pattern)
require.NoError(t, err, "create temp file")
name := f.Name()
err = f.Close()
require.NoError(t, err, "close temp file")
err = os.Remove(name)
require.NoError(t, err, "remove temp file")
t.Cleanup(func() {
// The test might have created created and it may have already removed it,
// so we ignore the error.
_ = os.Remove(name)
})
return name
}
// CreateTemp is a convenience function for creating a temporary file, like
// os.CreateTemp, but it also registers a cleanup function to close and remove
// the file.
func CreateTemp(t *testing.T, dir, pattern string) *os.File {
t.Helper()
if dir == "" {
dir = t.TempDir()
}
f, err := os.CreateTemp(dir, pattern)
require.NoError(t, err, "create temp file")
t.Cleanup(func() {
_ = f.Close()
err = os.Remove(f.Name())
if err != nil {
t.Logf("CreateTemp: Cleanup: remove failed for %q: %v", f.Name(), err)
}
})
return f
}