Function TestDirEntryModTimeInvalidation

vfs/dir_test.go:662–696

(t *testing.T)

}

func TestDirEntryModTimeInvalidation(t *testing.T) {
	r, vfs := newTestVFS(t)
	features := r.Fremote.Features()
	if !features.DirModTimeUpdatesOnWrite {
		t.Skip("Need DirModTimeUpdatesOnWrite")
	}
	if features.IsLocal && runtime.GOOS == "windows" {
		t.Skip("dirent modtime is unreliable on Windows filesystems")
	}

	r.WriteObject(context.Background(), "dir/file1", "file1 contents", t1)

	// Read the modtime of the directory fresh
	vfs.FlushDirCache()
	node, err := vfs.Stat("dir")
	require.NoError(t, err)
	modTime1 := node.(*Dir).DirEntry().ModTime(context.Background())

	// Wait some time (we wait for Precision+10%), then write another file
	// which should update the ModTime of the directory.
	prec := (11 * vfs.f.Precision()) / 10
	time.Sleep(max(100*time.Millisecond, prec))
	r.WriteObject(context.Background(), "dir/file2", "file2 contents", t2)

	// Read the modtime of the directory fresh again - it should have changed
	vfs.FlushDirCache()
	node2, err := vfs.Stat("dir")
	require.NoError(t, err)
	modTime2 := node2.(*Dir).DirEntry().ModTime(context.Background())

	// ModTime of directory must be different after second file was written.
	if modTime1.Equal(modTime2) {
		t.Error("ModTime not invalidated")
	}
}

func TestDirMetadataExtension(t *testing.T) {
	r, vfs, dir, _ := dirCreate(t)