{
			queryParams: map[string]string{
				"response-content-disposition": "attachment; filename=\"4K%2d4M.txt\"",
			},
			expected: ErrNone,
		},
		// (7) Should not error signature matches with no special query params.
		{
			queryParams: map[string]string{},
			expected:    ErrNone,
		},
	}

	// Run each test case individually.
	for i, testCase := range testCases {

	}

	cred, _, apiErr := getReqAccessKeyV2(r)
	if apiErr != ErrNone {
		return cred, apiErr
	}

	return cred, ErrNone
}

func doesSignV2Match(r *http.Request) APIErrorCode {
	v2Auth := r.Header.Get(xhttp.Authorization)
	cred, apiError := validateV2AuthHeader(r)
	if apiError != ErrNone {
		return apiError
	}

	// r.RequestURI will have raw encoded URI as sent by the client.

	// Allow putBucketACL if policy action is set, since this is a dummy call
	// we are simply re-purposing the bucketPolicyAction.
	if s3Error := checkRequestAuthType(ctx, r, policy.PutBucketPolicyAction, bucket, ""); s3Error != ErrNone {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
		return
	}

	// Before proceeding validate if bucket exists.
	_, err := objAPI.GetBucketInfo(ctx, bucket, BucketOptions{})
	if err != nil {

			expectedSignStr:  "abcd",
			expectedErrCode:  ErrNone,
		},
	}
	for i, testCase := range testCases {
		actualSignStr, actualErrCode := parseSignature(testCase.inputSignElement)
		if testCase.expectedErrCode != actualErrCode {
			t.Fatalf("Test %d: Expected the APIErrCode to be %d, got %d", i+1, testCase.expectedErrCode, actualErrCode)
		}
		if actualErrCode == ErrNone {
			if testCase.expectedSignStr != actualSignStr {

		return
	}

	vars := mux.Vars(r)
	bucket := vars["bucket"]

	if s3Error := checkRequestAuthType(ctx, r, policy.PutBucketPolicyAction, bucket, ""); s3Error != ErrNone {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
		return
	}

	// Check if bucket exists.
	if _, err := objAPI.GetBucketInfo(ctx, bucket, BucketOptions{}); err != nil {

		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL)
		return
	}

	if _, _, _, s3Err := checkPutObjectLockAllowed(ctx, r, bucket, object, objectAPI.GetObjectInfo, ErrNone, ErrNone); s3Err != ErrNone {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL)
		return
	}

	completeMultiPartUpload := objectAPI.CompleteMultipartUpload

	{err: crypto.ErrCustomerKeyMD5Mismatch, errCode: ErrSSECustomerKeyMD5Mismatch},
	{err: errObjectTampered, errCode: ErrObjectTampered},

	{err: nil, errCode: ErrNone},
	{err: errors.New("Custom error"), errCode: ErrInternalError}, // Case where err type is unknown.
}

func TestAPIErrCode(t *testing.T) {
	ctx := t.Context()
	for i, testCase := range toAPIErrorTests {

		if s3Error == ErrNone {
			s3Error = checkRequestAuthType(ctx, r, policy.GetObjectVersionAction, bucket, object)
		}
	} else {
		s3Error = checkRequestAuthType(ctx, r, policy.GetObjectAttributesAction, bucket, object)
		if s3Error == ErrNone {
			s3Error = checkRequestAuthType(ctx, r, policy.GetObjectAction, bucket, object)
		}
	}

	if s3Error != ErrNone {

		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMissingContentMD5), r.URL)
		return
	}

	if s3Error := checkRequestAuthType(ctx, r, policy.PutBucketLifecycleAction, bucket, ""); s3Error != ErrNone {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
		return
	}

	// Check if bucket exists.
	rcfg, err := globalBucketObjectLockSys.Get(bucket)
	if err != nil {

			},
			prefix:       "photos/",
			token:        "token",
			startAfter:   "start-after",
			delimiter:    SlashSeparator,
			fetchOwner:   true,
			maxKeys:      100,
			encodingType: "gzip",
			errCode:      ErrNone,
		},
		{
			values: url.Values{
				"prefix":             []string{"photos/"},
				"continuation-token": []string{"dG9rZW4="},
				"start-after":        []string{"start-after"},