package system // import "github.com/docker/docker/pkg/system" import ( "io/ioutil" "os" "path/filepath" "testing" "time" ) // prepareTempFile creates a temporary file in a temporary directory. func prepareTempFile(t *testing.T) (string, string) { dir, err := ioutil.TempDir("", "docker-system-test") if err != nil { t.Fatal(err) } file := filepath.Join(dir, "exist") if err := ioutil.WriteFile(file, []byte("hello"), 0644); err != nil { t.Fatal(err) } return file, dir } // TestChtimes tests Chtimes on a tempfile. Test only mTime, because aTime is OS dependent func TestChtimes(t *testing.T) { file, dir := prepareTempFile(t) defer os.RemoveAll(dir) beforeUnixEpochTime := time.Unix(0, 0).Add(-100 * time.Second) unixEpochTime := time.Unix(0, 0) afterUnixEpochTime := time.Unix(100, 0) unixMaxTime := maxTime // Test both aTime and mTime set to Unix Epoch Chtimes(file, unixEpochTime, unixEpochTime) f, err := os.Stat(file) if err != nil { t.Fatal(err) } if f.ModTime() != unixEpochTime { t.Fatalf("Expected: %s, got: %s", unixEpochTime, f.ModTime()) } // Test aTime before Unix Epoch and mTime set to Unix Epoch Chtimes(file, beforeUnixEpochTime, unixEpochTime) f, err = os.Stat(file) if err != nil { t.Fatal(err) } if f.ModTime() != unixEpochTime { t.Fatalf("Expected: %s, got: %s", unixEpochTime, f.ModTime()) } // Test aTime set to Unix Epoch and mTime before Unix Epoch Chtimes(file, unixEpochTime, beforeUnixEpochTime) f, err = os.Stat(file) if err != nil { t.Fatal(err) } if f.ModTime() != unixEpochTime { t.Fatalf("Expected: %s, got: %s", unixEpochTime, f.ModTime()) } // Test both aTime and mTime set to after Unix Epoch (valid time) Chtimes(file, afterUnixEpochTime, afterUnixEpochTime) f, err = os.Stat(file) if err != nil { t.Fatal(err) } if f.ModTime() != afterUnixEpochTime { t.Fatalf("Expected: %s, got: %s", afterUnixEpochTime, f.ModTime()) } // Test both aTime and mTime set to Unix max time Chtimes(file, unixMaxTime, unixMaxTime) f, err = os.Stat(file) if err != nil { t.Fatal(err) } if f.ModTime().Truncate(time.Second) != unixMaxTime.Truncate(time.Second) { t.Fatalf("Expected: %s, got: %s", unixMaxTime.Truncate(time.Second), f.ModTime().Truncate(time.Second)) } }