81 lines
1.9 KiB
Go
81 lines
1.9 KiB
Go
package testutil
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import (
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"flag"
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"io/ioutil"
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"os"
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"path/filepath"
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"strconv"
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"syscall"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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var rootEnabled bool
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func init() {
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flag.BoolVar(&rootEnabled, "test.root", false, "enable tests that require root")
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}
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// Unmount unmounts a given mountPoint and sets t.Error if it fails
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func Unmount(t *testing.T, mountPoint string) {
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t.Log("unmount", mountPoint)
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if err := syscall.Unmount(mountPoint, 0); err != nil {
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t.Error("Could not umount", mountPoint, err)
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}
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}
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// RequiresRoot skips tests that require root, unless the test.root flag has
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// been set
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func RequiresRoot(t *testing.T) {
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if !rootEnabled {
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t.Skip("skipping test that requires root")
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return
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}
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assert.Equal(t, 0, os.Getuid(), "This test must be run as root.")
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}
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// DumpDir will log out all of the contents of the provided directory to
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// testing logger.
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//
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// Use this in a defer statement within tests that may allocate and exercise a
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// temporary directory. Immensely useful for sanity checking and debugging
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// failing tests.
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//
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// One should still test that contents are as expected. This is only a visual
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// tool to assist when things don't go your way.
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func DumpDir(t *testing.T, root string) {
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if err := filepath.Walk(root, func(path string, fi os.FileInfo, err error) error {
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if err != nil {
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return err
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}
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if fi.Mode()&os.ModeSymlink != 0 {
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target, err := os.Readlink(path)
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if err != nil {
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return err
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}
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t.Log(fi.Mode(), path, "->", target)
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} else if fi.Mode().IsRegular() {
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p, err := ioutil.ReadFile(path)
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if err != nil {
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t.Logf("error reading file: %v", err)
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return nil
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}
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if len(p) > 64 { // just display a little bit.
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p = p[:64]
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}
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t.Log(fi.Mode(), path, "[", strconv.Quote(string(p)), "...]")
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} else {
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t.Log(fi.Mode(), path)
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}
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return nil
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}); err != nil {
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t.Fatalf("error dumping directory: %v", err)
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}
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}
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