err = json.NewDecoder(rec.Body).Decode(&results)
	if err != nil {
		t.Fatalf("Failed to decode set config result json %v", err)
	}

	if results.Region != globalMinioDefaultRegion {
		t.Errorf("Expected %s, got %s", globalMinioDefaultRegion, results.Region)
	}
}

// TestToAdminAPIErrCode - test for toAdminAPIErrCode helper function.
func TestToAdminAPIErrCode(t *testing.T) {
	testCases := []struct {

	}

	clnt, err := driver.getMinIOClient(ctx)
	if err != nil {
		return err
	}

	if prefix == "" {
		return clnt.MakeBucket(context.Background(), bucket, minio.MakeBucketOptions{Region: globalSite.Region()})
	}

	dirPath := buildMinioDir(prefix)

	_, err = clnt.PutObject(context.Background(), bucket, dirPath, bytes.NewReader([]byte("")), 0, minio.PutObjectOptions{
		DisableContentSha256: true,
	})

		if bucket == "" {
			return errors.New("bucket name cannot be empty")
		}

		if prefix == "" {
			return clnt.MakeBucket(context.Background(), bucket, minio.MakeBucketOptions{Region: globalSite.Region()})
		}

		dirPath := buildMinioDir(prefix)

		_, err = clnt.PutObject(context.Background(), bucket, dirPath, bytes.NewReader([]byte("")), 0,
			minio.PutObjectOptions{DisableContentSha256: true},
		)

	}{
		{name: "us-east-1", success: true},
		{name: "us_east", success: true},
		{name: "helloWorld", success: true},
		{name: "-fdslka", success: false},
		{name: "^00[", success: false},
		{name: "my region", success: false},
		{name: "%%$#!", success: false},
	}

	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {
			ok := validRegionRegex.MatchString(test.name)
			if test.success != ok {

	mkdir -p "$WORK_DIR"
	mkdir -p "$MINIO_CONFIG_DIR"

	## version is purposefully set to '3' for minio to migrate configuration file
	echo '{"version": "3", "credential": {"accessKey": "minio", "secretKey": "minio123"}, "region": "us-east-1"}' >"$MINIO_CONFIG_DIR/config.json"

	if [ ! -f /tmp/mc ]; then
		wget --quiet -O /tmp/mc https://dl.minio.io/client/mc/release/linux-amd64/mc &&
			chmod +x /tmp/mc
	fi
}

	VersionID    string           `json:",omitempty"` // corresponding versionID for the object
	Objects      []ObjectVersion  `json:",omitempty"` // Only set during MultiObject delete handler.
	Cred         auth.Credentials `json:"-"`
	Region       string           `json:"-"`
	Owner        bool             `json:"-"`
	AuthType     string           `json:"-"`
	tags         []KeyVal         // Any additional info not accommodated by above fields
	sync.RWMutex
}

	}

	switch err.Code {
	case "InvalidRegion":
		err.Description = fmt.Sprintf("Region does not match; expecting '%s'.", globalSite.Region())
	case "AuthorizationHeaderMalformed":
		err.Description = fmt.Sprintf("The authorization header is malformed; the region is wrong; expecting '%s'.", globalSite.Region())
	}

	// Similar check to http.checkWriteHeaderCode

	shred -n 1 -s 65M - 1>"$FILE_65_MB" 2>/dev/null

	## version is purposefully set to '3' for minio to migrate configuration file
	echo '{"version": "3", "credential": {"accessKey": "minio", "secretKey": "minio123"}, "region": "us-east-1"}' >"$MINIO_CONFIG_DIR/config.json"

	if ! wget -q -O "$FUNCTIONAL_TESTS" https://raw.githubusercontent.com/minio/mc/master/functional-tests.sh; then

### Testing an example with awscli tool

> Use the same username and password created in the previous steps.

```
[foobar]
region = us-east-1
aws_access_key_id = foobar
aws_secret_access_key = foo12345
```

		{mustNewSignedRequest(http.MethodGet, "http://127.0.0.1:9000", 0, nil, t), ErrNone},
	}

	// Validates all testcases.
	for i, testCase := range testCases {
		s3Error := isReqAuthenticated(ctx, testCase.req, globalSite.Region(), serviceS3)
		if s3Error != testCase.s3Error {
			if _, err := io.ReadAll(testCase.req.Body); toAPIErrorCode(ctx, err) != testCase.s3Error {