if err != nil {
				t.Fatal(err)
			}
			defer z.Close()
			if err := fstest.TestFS(z, test.want...); err != nil {
				t.Error(err)
			}
		})
	}
}

func TestFSWalk(t *testing.T) {
	for _, test := range []struct {
		file    string
		want    []string
		wantErr bool
	}{
		{
			file: "testdata/unix.zip",