t.Fatalf("Expected %s but got %s", tc.expectedDataDir, dataDir)
		}
		count++
	}
}

func Benchmark_mergeXLV2Versions(b *testing.B) {
	data, err := os.ReadFile("testdata/xl.meta-v1.2.zst")
	if err != nil {
		b.Fatal(err)
	}
	dec, _ := zstd.NewReader(nil)
	data, err = dec.DecodeAll(data, nil)
	if err != nil {
		b.Fatal(err)
	}

	var xl xlMetaV2

    <_comment>https://tools.ietf.org/id/draft-kucherawy-dispatch-zstd-01.html</_comment>
    <magic priority="50">
      <match value="0xFD2FB528" type="little32" offset="0"/>
    </magic>
    <glob pattern="*.zst"/>
  </mime-type>
  <mime-type type="application/x-esri-layer">
    <_comment>ESRI Layer file</_comment>
    <sub-class-of type="application/x-tika-msoffice"/>
    <glob pattern="*.lyr"/>
  </mime-type>