objInfo:         objInfo,
			expectedFlag:    true,
			expectedCode:    304,
		},
	}
	for _, tc := range testCases {
		t.Run(tc.name, func(t *testing.T) {
			recorder := httptest.NewRecorder()
			request := httptest.NewRequest(http.MethodHead, "/bucket/a", bytes.NewReader([]byte{}))
			request.Header.Set(xhttp.IfNoneMatch, tc.ifNoneMatch)
			request.Header.Set(xhttp.IfModifiedSince, tc.ifModifiedSince)

			var reqV4, reqV2 *http.Request
			var recV4, recV2 *httptest.ResponseRecorder

			// initialize HTTP NewRecorder, this records any mutations to response writer inside the handler.
			recV4 = httptest.NewRecorder()
			recV2 = httptest.NewRecorder()
			// setting a non-existent uploadID.
			// deliberately introducing the invalid value to be able to assert the response with the expected error response.

				"test1": {}, "test2": {}, "test3": {}, "test4": {},
			},
		},
	}

	for _, testCase := range testCases {
		t.Run(testCase.name, func(t *testing.T) {
			rec := httptest.NewRecorder()
			req := httptest.NewRequest("GET", "/test", nil)
			req.Header = testCase.headers

			opts, _ := getAndValidateAttributesOpts(ctx, rec, req, bucket, "testobject")

		accessKey = userAccessKey
		secretKey = userSecretKey
	}

	req := buildKMSRequest(t, test.method, test.path, accessKey, secretKey, test.query)
	rec := httptest.NewRecorder()
	adminTestBed.router.ServeHTTP(rec, req)

	t.Logf("HTTP req: %s, resp code: %d, resp body: %s", req.URL.String(), rec.Code, rec.Body.String())

	// Check status code
	if rec.Code != test.wantStatusCode {

		return fmt.Sprintf("MinIO %s: %s fail for \"%s\": \n<Error> %s", instanceType, testType, testName, failMsg)
	}

	// httptest Recorder to capture all the response by the http handler.
	rec := httptest.NewRecorder()
	// reading the body to preserve it so that it can be used again for second attempt of sending unsigned HTTP request.
	// If the body is read in the handler the same request cannot be made use of.

		t.Fatalf("Initializing config.json failed")
	}

	objectName := `\../.minio.sys/config/hello.txt`

	// initialize HTTP NewRecorder, this records any mutations to response writer inside the handler.
	rec := httptest.NewRecorder()
	// construct HTTP request for Get Object end point.
	req, err := newTestSignedRequestV4(http.MethodPut, getPutObjectURL("", bucketName, objectName),

					})
					writeResponse(w, serr.HTTPStatusCode(), encodedErrorResponse, mimeXML)
				} else {
					writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
				}
				return
			}
			nr := httptest.NewRecorder()
			rw := xhttp.NewResponseRecorder(nr)
			rw.LogErrBody = true
			rw.LogAllBody = true
			rreq.SelectParameters.Evaluate(rw)
			rreq.SelectParameters.Close()
			return
		}