}
	if err := DB.Migrator().DropTable(&Organization{}, &Region{}); err != nil {
		t.Fatalf("Failed to migrate, got error: %s", err)
	}
	if err := DB.AutoMigrate(&Organization{}, &Region{}); err != nil {
		t.Fatalf("Failed to migrate, got error: %v", err)
	}
	region := &Region{Name: "Region1"}
	if err := DB.Create(region).Error; err != nil {
		t.Fatalf("fail to create region %v", err)
	}
	var orgs []Organization

    
    // Test buffer allocation
    RdmaMemoryRegion region = manager.getSendRegion(1024);
    assertNotNull(region);
    assertTrue(region.getSize() >= 1024);
    
    // Test buffer release
    manager.releaseSendRegion(region);
    
    // Test reuse
    RdmaMemoryRegion region2 = manager.getSendRegion(1024);
    assertNotNull(region2);
    
    manager.cleanup();
}
```

            assertNotNull(sendRegion, "Send region should not be null");
            assertTrue(sendRegion.getSize() >= 4096, "Send region should be at least 4KB");
            assertNotNull(sendRegion.getBuffer(), "Send region buffer should not be null");

            RdmaMemoryRegion recvRegion = bufferManager.getReceiveRegion();
            assertNotNull(recvRegion, "Receive region should not be null");

    }

    /**
     * Get total number of memory regions allocated
     *
     * @return memory region count
     */
    public long getMemoryRegionsAllocated() {
        return memoryRegionsAllocated.get();
    }

    /**
     * Get number of currently active memory regions
     *
     * @return active memory region count
     */
    public long getMemoryRegionsActive() {

	now := UTCNow()
	credentialTemplate := "%s/%s/%s/s3/aws4_request"

	region := globalSite.Region()
	accessKeyID := globalActiveCred.AccessKey
	testCases := []struct {
		queryParams map[string]string
		headers     map[string]string
		region      string
		expected    APIErrorCode
	}{
		// (0) Should error without a set URL query.
		{
			region:   globalMinioDefaultRegion,
			expected: ErrInvalidQueryParams,
		},

// returns ErrNone if the signature matches.
func doesPolicySignatureV4Match(formValues http.Header) (auth.Credentials, APIErrorCode) {
	// Server region.
	region := globalSite.Region()

	// Parse credential tag.
	credHeader, s3Err := parseCredentialHeader("Credential="+formValues.Get(xhttp.AmzCredential), region, serviceS3)
	if s3Err != ErrNone {
		return auth.Credentials{}, s3Err
	}

	r := &http.Request{Header: formValues}

	case authTypeSigned, authTypePresigned:
		region := globalSite.Region()
		switch action {
		case policy.GetBucketLocationAction, policy.ListAllMyBucketsAction:
			region = ""
		}
		if s3Err = isReqAuthenticated(ctx, r, region, serviceS3); s3Err != ErrNone {
			return s3Err
		}
		cred, owner, s3Err = getReqAccessKeyV4(r, region, serviceS3)
	}
	if s3Err != ErrNone {
		return s3Err
	}

	}

	cred, _, errCode = checkKeyValid(r, signV4Values.Credential.accessKey)
	if errCode != ErrNone {
		return cred, "", "", time.Time{}, errCode
	}

	// Verify if region is valid.
	region = signV4Values.Credential.scope.region

	// Extract date, if not present throw error.
	var dateStr string
	if dateStr = req.Header.Get("x-amz-date"); dateStr == "" {
		if dateStr = r.Header.Get("Date"); dateStr == "" {

	if location == "" {
		location = globalSite.Region()
	}
	if !isValidLocation(location) {
		return location, ErrInvalidRegion
	}

	return location, ErrNone
}

// Validates input location is same as configured region
// of MinIO server.
func isValidLocation(location string) bool {
	region := globalSite.Region()
	return region == "" || region == location
}

	}
	if expectedCredentials.scope.region != actualCredential.scope.region {
		t.Errorf("Test %d: region mismatch:Expected \"%s\", got \"%s\"", testNum, expectedCredentials.scope.region, actualCredential.scope.region)
	}
	if expectedCredentials.scope.service != actualCredential.scope.service {