return req
	}

	testCases := []struct {
		request            *http.Request
		serverConfigRegion string
		expectedCode       APIErrorCode
	}{
		// Test case - 1.
		{createExpectedRequest(&http.Request{}, "eu-central-1"), globalMinioDefaultRegion, ErrNone},
		// Test case - 2.
		// In case of empty request body ErrNone is returned.
		{createExpectedRequest(&http.Request{}, ""), globalMinioDefaultRegion, ErrNone},
		// Test case - 3

	err := w.WriteHeader(&Header{
		Name: "lorem.txt",
		Mode: 0600,
		Size: int64(len(inp)),