recV4 := httptest.NewRecorder()
		// construct HTTP request for PUT bucket policy endpoint.
		reqV4, err := newTestSignedRequestV4(http.MethodPut, getPutPolicyURL("", testCase.bucketName),
			int64(testCase.policyLen), testCase.bucketPolicyReader, testCase.accessKey, testCase.secretKey, nil)
		if err != nil {

	rec := httptest.NewRecorder()
	req, err := newTestSignedRequestV4(http.MethodPut, getPutPolicyURL("", bucketName), int64(len(policyBytes)), bytes.NewReader(policyBytes),
		credentials.AccessKey, credentials.SecretKey, nil)
	if err != nil {