1 //go:build !windows 2 // +build !windows 3 4 /* 5 Copyright The containerd Authors. 6 7 Licensed under the Apache License, Version 2.0 (the "License"); 8 you may not use this file except in compliance with the License. 9 You may obtain a copy of the License at 10 11 http://www.apache.org/licenses/LICENSE-2.0 12 13 Unless required by applicable law or agreed to in writing, software 14 distributed under the License is distributed on an "AS IS" BASIS, 15 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 See the License for the specific language governing permissions and 17 limitations under the License. 18 */ 19 20 package testutil 21 22 import ( 23 "os" 24 "testing" 25 26 "golang.org/x/sys/unix" 27 ) 28 29 // Unmount unmounts a given mountPoint and sets t.Error if it fails 30 func Unmount(t *testing.T, mountPoint string) { 31 t.Log("unmount", mountPoint) 32 if err := unmountAll(mountPoint); err != nil { 33 t.Error("Could not umount", mountPoint, err) 34 } 35 } 36 37 // RequiresRoot skips tests that require root, unless the test.root flag has 38 // been set 39 func RequiresRoot(t testing.TB) { 40 if !rootEnabled { 41 t.Skip("skipping test that requires root") 42 return 43 } 44 if os.Getuid() != 0 { 45 t.Error("This test must be run as root.") 46 } 47 } 48 49 func unmountAll(mountpoint string) error { 50 for { 51 if err := unix.Unmount(mountpoint, unmountFlags); err != nil { 52 if err == unix.EINVAL { 53 return nil 54 } 55 return err 56 } 57 } 58 } 59