assertEquals("", Strings.commonPrefix("abcde", "xyz"));
    assertEquals("", Strings.commonPrefix("xyz", "abcde"));
    assertEquals("", Strings.commonPrefix("xyz", "abcxyz"));
    assertEquals("a", Strings.commonPrefix("abc", "aaaaa"));
    assertEquals("aa", Strings.commonPrefix("aa", "aaaaa"));
    assertEquals("abc", Strings.commonPrefix(new StringBuilder("abcdef"), "abcxyz"));

    // Identical valid surrogate pairs.

        // Corresponds to a string of length 5 (10 bytes for UTF-16)
        PacUnicodeString pacString = new PacUnicodeString((short) 10, (short) 20, 100);
        String testString = "abcde";

        // The check method should return the same string instance
        String result = pacString.check(testString);
        assertSame(testString, result, "The check method should return the original string on success.");

			keys:     []string{"etag", "md5"},
			want:     map[string]string{"content-type": "application/octet-stream", "x-amz-storage-class": "STANDARD"},
		},
		{
			name:     "2",
			metadata: map[string]string{"content-type": "application/octet-stream", "etag": "de75a98baf2c6aef435b57dd0fc33c86", "x-amz-storage-class": "REDUCED_REDUNDANCY", "md5sum": "abcde"},
			keys:     []string{"etag", "md5sum"},

    transferKind.setBody(mockResponse, "ABCDE\nFGHIJKLMNOPQRSTUVWXYZ", 16)
    server.enqueue(truncateViolently(mockResponse, 16).build())
    server.enqueue(
      MockResponse
        .Builder()
        .body("Request #2")
        .build(),
    )
    val bodySource = get(server.url("/")).body.source()
    assertThat(bodySource.readUtf8Line()).isEqualTo("ABCDE")
    bodySource.use {

		t.Fatalf("%s : %s", instanceType, err)
	}

	uploadIDs = append(uploadIDs, res.UploadID)
	// Parts with size greater than 5 MiB.
	// Generating a 6MiB byte array.
	validPart := bytes.Repeat([]byte("abcdef"), 1*humanize.MiByte)
	validPartMD5 := getMD5Hash(validPart)
	// Create multipart parts.
	// Need parts to be uploaded before CompleteMultiPartUpload can be called tested.
	parts := []struct {

			srcPath:         "abc/def/ghi",
			expectedListDir: []string{"success-file"},
			expectedErr:     nil,
		},
		// TestXLStorage case - 2.
		{
			srcVol:      "success-vol",
			srcPath:     "abcdef",
			expectedErr: errFileNotFound,
		},
		// TestXLStorage case - 3.
		// TestXLStorage case with invalid volume name.
		{
			srcVol:      "ab",
			srcPath:     "success-file",

		}

		uploadIDs = append(uploadIDs, res.UploadID)
	}

	// Parts with size greater than 5 MiB.
	// Generating a 6 MiB byte array.
	validPart := bytes.Repeat([]byte("abcdef"), 1*humanize.MiByte)
	validPartMD5 := getMD5Hash(validPart)
	// Create multipart parts.
	// Need parts to be uploaded before CompleteMultiPartUpload can be called tested.
	parts := []struct {