[TestMethod] // test stubs
public void Create_WithNullSample_ShouldReturnBadRequestResult() // ServiceMethodToBeTest_ExpectedInput_ExpectedBehavior()
{
// arrange
sample = null;
// act
var result = sut.CreateSample(sample);
// assert
Assert.IsInstanceOfType(result, typeof(BadRequestResult));
mockService
.Verify(
s => s.Save(Guid.Empty, sample), Times.Never
);
}