if entry.name != want[i] {
			t.Errorf("entry %d, want %q, got %q", i, want[i], entry.name)
		}
		i++
	}
	wg.Wait()
	if readErr != nil {
		t.Fatal(readErr)
	}
}

func Test_metacacheReader_forwardTo(t *testing.T) {
	r := loadMetacacheSample(t)
	defer r.Close()
	err := r.forwardTo("src/compress/zlib/reader_test.go")
	if err != nil {
		t.Fatal(err)
	}
	names, err := r.readNames(-1)