tmpmode_test.go RawHistoryFolder

1// SPDX-License-Identifier: MIT
2
3package sandbox
4
5import (
6	"os"
7	"path/filepath"
8	"testing"
9)
10
11// The job's /tmp is world-writable and sticky, as on GitHub's runners: a
12// program that refuses a replaceable temp directory (a writable ancestor
13// without the sticky bit) must accept it.
14func TestTmpModeIsStickyAndWorldWritable(t *testing.T) {
15	dir := filepath.Join(t.TempDir(), "tmp")
16	if err := os.Mkdir(dir, 0o755); err != nil {
17		t.Fatal(err)
18	}
19	if err := os.Chmod(dir, TmpMode); err != nil {
20		t.Fatal(err)
21	}
22	fi, err := os.Stat(dir)
23	if err != nil {
24		t.Fatal(err)
25	}
26	if fi.Mode()&os.ModeSticky == 0 || fi.Mode().Perm() != 0o777 {
27		t.Fatalf("mode %v, want sticky and 0777", fi.Mode())
28	}
29}