UTCNow().Format(yyyymmdd),
				"us-west-1",
				"ABCD",
				"ABCD"),
			expectedCredentials: credentialHeader{},
			expectedErrCode:     ErrInvalidServiceS3,
		},
		// Test Case - 7.
		// Test case with invalid region.
		{
			inputCredentialStr: generateCredentialStr(
				"Z7IXGOO6BZ0REAN1Q26I",
				UTCNow().Format(yyyymmdd),
				"us-west-2",
				"s3",
				"aws4_request"),

          "site.tv",
          "site.us",
          "some.org.mk",
          "stanford.edu",
          "state.ca.us",
          "uomi-online.kir.jp",
          "utenti.blah.it",
          "web.stanford.edu",
          "www.GOOGLE.com",
          "www.com",
          "www.leguide.ma",
          "www.odev.us",
          "www.rave.ca.",
          "www.state.ca.us",
          "www7.google.co.uk"

			success: false,
		},
		// invalid json.
		{

        String name1 = "WORKSTATION     ";
        System.arraycopy(name1.getBytes("US-ASCII"), 0, src, srcIndex + 1, 16);
        src[srcIndex + 16] = 0x00; // hex code
        src[srcIndex + 17] = 0x04; // flags: active

        // Second name entry (18 bytes)
        String name2 = "DOMAIN          ";
        System.arraycopy(name2.getBytes("US-ASCII"), 0, src, srcIndex + 19, 16);
        src[srcIndex + 34] = 0x00; // hex code

		expectedResult bool
	}{
		{"", "", true},
		{globalMinioDefaultRegion, "", true},
		{globalMinioDefaultRegion, "US", true},
		{"us-west-1", "US", false},
		{"us-west-1", "us-west-1", true},
		// "US" was old naming convention for 'us-east-1'.
		{"US", "US", true},
	}

	for i, testCase := range testCases {
		actualResult := isValidRegion(testCase.inputReqRegion, testCase.inputConfRegion)

				"X-Amz-Signature":     "badsignature",
				"X-Amz-SignedHeaders": "host;x-amz-content-sha256;x-amz-date",
				"X-Amz-Credential":    fmt.Sprintf(credentialTemplate, "Z7IXGOO6BZ0REAN1Q26I", now.Format(yyyymmdd), "us-west-1"),
			},
			region:   "us-west-1",
			expected: ErrInvalidAccessKeyID,
		},
		// (2) Should NOT fail with an invalid region if it doesn't verify it.
		{
			queryParams: map[string]string{

	// Generate the final policy document
	policy = fmt.Sprintf(policy, dates...)

	region := "us-east-1"
	// Create a new POST request with success_action_redirect field specified

   * The HTTP <a
   * href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Link_prefetching_FAQ#As_a_server_admin.2C_can_I_distinguish_prefetch_requests_from_normal_requests.3F">{@code
   * Purpose}</a> header field name.
   *
   * @since 28.0
   */
  public static final String PURPOSE = "Purpose";

  /**
   * The HTTP <a

   * RS, and US is least inclusive. (The content and length of a File, Group, Record, or Unit are
   * not specified.)
   *
   * @since 8.0
   */
  public static final byte US = 31;

  /**
   * Space: A normally non-printing graphic character used to separate words. It is also a format
   * effector which controls the movement of the printing position, one printing position forward.

            this.treeConnection.acquire();
        }
        return this;
    }

    @Override
    public void release() {
        final long us = this.usageCount.decrementAndGet();
        if (us == 0) {
            this.treeConnection.release();
        } else if (us < 0) {
            throw new RuntimeCIFSException("Usage count dropped below zero");
        }
    }

    @Override