in = in[:len(tt.in)]
		out := Replace(in, old, new, tt.n)
		if s := string(out); s != tt.out {
			t.Errorf("Replace(%q, %q, %q, %d) = %q, want %q", tt.in, tt.old, tt.new, tt.n, s, tt.out)
		}
		if cap(in) == cap(out) && &in[:1][0] == &out[:1][0] {
			t.Errorf("Replace(%q, %q, %q, %d) didn't copy", tt.in, tt.old, tt.new, tt.n)
		}
		if tt.n == -1 {
			out := ReplaceAll(in, old, new)
			if s := string(out); s != tt.out {

			want: []string{"foo", "bar"},
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if err := yaml.Unmarshal([]byte(tt.args.yamlStr), &tt.b); (err != nil) != tt.wantErr {
				t.Errorf("UnmarshalYAML() error = %v, wantErr %v", err, tt.wantErr)
			}
			if !slices.Equal(tt.b.Prefix.F(), tt.want) {
				t.Errorf("UnmarshalYAML() = %v, want %v", tt.b.Prefix.F(), tt.want)
			}
		})
	}

		},
		{
			name:   "folderfolder",
			prefix: "prefix/prefix2/",
			want:   "prefix/prefix2/",
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if got := baseDirFromPrefix(tt.prefix); got != tt.want {
				t.Errorf("baseDirFromPrefix() = %v, want %v", got, tt.want)
			}
		})
	}
}

func Test_metacache_finished(t *testing.T) {

			keys:     []string{"etag", "xyz"},
			want:     map[string]string{"content-type": "application/octet-stream"},
		},
	}
	for _, tt := range tests {
		if got := cleanMetadataKeys(tt.metadata, tt.keys...); !reflect.DeepEqual(got, tt.want) {
			t.Errorf("Test %s failed, expected %v, got %v", tt.name, tt.want, got)
		}
	}
}

// Tests isCompressed method
func TestIsCompressed(t *testing.T) {
	testCases := []struct {

		{name: "long-fail", input: strings.Repeat("a/", 2000) + "../..", want: true},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(b *testing.B) {
			b.SetBytes(int64(len(tt.input)))
			b.ReportAllocs()
			for b.Loop() {
				if got := hasBadPathComponent(tt.input); got != tt.want {
					t.Fatalf("hasBadPathComponent() = %v, want %v", got, tt.want)
				}
			}
		})
	}

			NumericRegexp: nil,
			Vars:          []interface{}{"jinzhu", 1, 999.99, true, []byte("12345"), tt, &tt, nil, "w@g.\"com", myrole, pwd},

	}

	for i, tt := range tests {
		pos, err := r.Seek(tt.off, tt.seek)
		if err == nil && tt.seekerr != "" {
			t.Errorf("%d. want seek error %q", i, tt.seekerr)
			continue
		}
		if err != nil && err.Error() != tt.seekerr {
			t.Errorf("%d. seek error = %q; want %q", i, err.Error(), tt.seekerr)
			continue
		}
		if tt.wantpos != 0 && tt.wantpos != pos {

}

func TestCompare(t *testing.T) {
	for _, tt := range compareTests {
		numShifts := 16
		buffer := make([]byte, len(tt.b)+numShifts)
		// vary the input alignment of tt.b
		for offset := 0; offset <= numShifts; offset++ {
			shiftedB := buffer[offset : len(tt.b)+offset]
			copy(shiftedB, tt.b)
			cmp := Compare(tt.a, shiftedB)
			if cmp != tt.i {

	}
	for _, tt := range tests {
		got, err := parseHexUint([]byte(tt.in))
		if tt.wantErr != "" {
			if err != nil && !strings.Contains(err.Error(), tt.wantErr) {
				t.Errorf("parseHexUint(%q) = %v, %v; want error %q", tt.in, got, err, tt.wantErr)
			}
		} else {
			if err != nil || got != tt.want {
				t.Errorf("parseHexUint(%q) = %v, %v; want %v", tt.in, got, err, tt.want)
			}
		}
	}

		{3, -1, 5, false},
		{4, 5, -1, false},
		{5, 5, 0, true},
		{6, 5, 0, true},
		{7, 5, 4, true},
	}
	for _, tt := range tests {
		if got := isXLMetaErasureInfoValid(tt.data, tt.parity); got != tt.want {
			t.Errorf("Test %d: Expected %v but received %v -> %#v", tt.name, got, tt.want, tt)
		}
	}
}

// newTestXLMetaV1 - initializes new xlMetaV1Object, adds version, allocates a fresh erasure info and metadata.