com.google.zxing.NotFoundException Spring Boot QR Code Example JUnit Tests

I tried to implement an example of QR Code Generator in Spring Boot. I have a problem in Service Test and Controller Test. In Service Test, I cannot decode the byte values in `QRCodeReader().decode(binaryBitmap)` I get this error message shown below when I run any test method `com.google.zxing.NotFoundException` In Controller Test, I get this error message shown below when I run any test method ``` MockHttpServletResponse: Status = 400 Error message = null Headers = [Content-Type:"application/problem+json"] Content type = application/problem+json Body = {"type":"about:blank","title":"Bad Request","status":400,"detail":"Required part 'text' is not present.","instance":"/api/v1/qr-generator"} Forwarded URL = null Redirected URL = null Cookies = [] java.lang.AssertionError: Status expected:<201> but was:<400> Expected :201 Actual :400 ``` How can I fix it? Here is the link : https://github.com/Rapter1990/qr-generator-example