public void DeleteProgramRequest_WhenDatabaseThrowsError_ShouldThrowException() { //Arrange mockDataAccess .Setup(x => x.ExecuteNonQuery( It.IsAny <string>(), "prc_ISISProgramRequestDelete_Exception", It.IsAny <CommandType>(), It.IsAny <SqlParameter[]>(), ref It.Ref <List <SqlParameter> > .IsAny)) .Throws <Exception>(); //Act and Assert Assert.Throws <Exception>(() => programRequest.DeleteProgramRequest(10, 1, "someString", "someString")); mockExceptionHandling.VerifyAll(); }