package testutil

import (

"os"

"path/filepath"

"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

}

// TempDirResolved returns t.TempDir() with symlinks resolved via

// filepath.EvalSymlinks. Tests that compare paths against values

// processed by EvalSymlinks (directly or indirectly) should use

// this helper so the comparison works on macOS, where the default

// temp dir lives under /var which is a symlink to /private/var.

//

// If EvalSymlinks errors (for example on Windows where the temp

// path may not resolve cleanly), the raw t.TempDir() result is

// returned. This matches the lenient behavior already used in

// existing tests.

func TempDirResolved(t *testing.T) string {

t.Helper()

dir := t.TempDir()

if resolved, err := filepath.EvalSymlinks(dir); err == nil {

return resolved

}

return dir

}