public void ThrowArgumentNullExceptionWhenPassedCategoryNameIsEmpty()
{
//Arrange
var mockedRunRepository = new Mock <IRunRepository>();
Func <IUnitOfWork> mockedUnitOfWorkFactory = () => { return(new Mock <IUnitOfWork>().Object); };
var serviceUnderTest = new RunService(mockedRunRepository.Object, mockedUnitOfWorkFactory);
string expectedExceptionMessage = "categoryName";
//Act
var exc = Assert.Throws <ArgumentException>(() => {
serviceUnderTest.GetRunsInCategory("");
});
//Assert
StringAssert.Contains(expectedExceptionMessage, exc.Message);
}