zb0002, err = dc.ReadArrayHeader()
			if err != nil {
				err = msgp.WrapError(err, "ObjSizes")
				return
			}
			if zb0002 != uint32(dataUsageBucketLen) {
				err = msgp.ArrayError{Wanted: uint32(dataUsageBucketLen), Got: zb0002}
				return
			}
			for za0001 := range z.ObjSizes {
				z.ObjSizes[za0001], err = dc.ReadUint64()
				if err != nil {

		t.Errorf("w.Write(%v bytes) = %v, %v; want %v, nil", writeSize, n, err, writeSize)
	}
	n, err := w.ReadFrom(bytes.NewReader(input[writeSize:]))
	if wantn := len(input[writeSize:]); int(n) != wantn || err != nil {
		t.Errorf("io.Copy(w, %v bytes) = %v, %v; want %v, nil", wantn, n, err, wantn)
	}
	if err := w.Flush(); err != nil {
		t.Errorf("w.Flush() = %v, want nil", err)
	}

			var zb0002 uint32
			zb0002, err = dc.ReadArrayHeader()
			if err != nil {
				err = msgp.WrapError(err, "Totals")
				return
			}
			if zb0002 != uint32(60) {
				err = msgp.ArrayError{Wanted: uint32(60), Got: zb0002}
				return
			}
			for za0001 := range z.Totals {
				err = z.Totals[za0001].DecodeMsg(dc)
				if err != nil {
					err = msgp.WrapError(err, "Totals", za0001)
					return

	var zb0001 uint32
	zb0001, err = dc.ReadArrayHeader()
	if err != nil {
		err = msgp.WrapError(err)
		return
	}
	if zb0001 != 7 {
		err = msgp.ArrayError{Wanted: 7, Got: zb0001}
		return
	}
	err = dc.ReadExactBytes((z.VersionID)[:])
	if err != nil {
		err = msgp.WrapError(err, "VersionID")
		return
	}
	z.ModTime, err = dc.ReadInt64()
	if err != nil {

	// Validate all test cases.
	for i, testCase := range testCases {
		// Initialize a new xlStorage layer.
		_, err := newLocalXLStorage(testCase.name)
		if err != testCase.err {
			t.Fatalf("TestXLStorage %d failed wanted: %s, got: %s", i+1, err, testCase.err)
		}
	}
}

// TestXLStorageMakeVol - TestXLStorage validate the logic for creation of new xlStorage volume.
// Asserts the failures too against the expected failures.