public async Task Put_InvalidRequest_ReturnBadRequest()
{
// Arrange
var request = new UpdateSampleRequest();
var validationResult = ValidationResult.Error("invalid request");
var apiResult = new BadRequestObjectResult(Messages.InvalidRequest);
requestValidator.Setup(x => x.Validate(request)).Returns(validationResult);
// Act
var result = await controller.Put(request);
// Assert
result.Should().BeEquivalentTo(apiResult);
}