String name = UUID.randomUUID().toString().replaceAll("-", "");
String filePath = "/tmp/" + name;
Response createdFile = doCreateFile(name, "some content");
FileService.FileResourceRequest request = new FileService.FileResourceRequest();
request.file = new FileResource();
request.file.setFilePath(filePath);
request.file.setFileContent("1234567890"); // 10 bytes, 3*(4b page)
Response response = fileService.updateFile(request, filePath);
Assert.assertEquals(204, response.getStatus());