NSubstitute完全手册(十三)抛出异常
当一个成员被调用时,也可使用回调来抛出异常。
1 public interface ICalculator 2 { 3 int Add(int a, int b); 4 string Mode { get; set; } 5 } 6 7 [TestMethod] 8 [ExpectedException(typeof(Exception))] 9 public void Test_ThrowingExceptions_ForVoid() 10 { 11 var calculator = Substitute.For<ICalculator>(); 12 13 // 对无返回值函数 14 calculator.Add(-1, -1).Returns(x => { throw new Exception(); }); 15 16 // 抛出异常 17 calculator.Add(-1, -1); 18 } 19 20 [TestMethod] 21 [ExpectedException(typeof(Exception))] 22 public void Test_ThrowingExceptions_ForNonVoidAndVoid() 23 { 24 var calculator = Substitute.For<ICalculator>(); 25 26 // 对有返回值或无返回值函数 27 calculator 28 .When(x => x.Add(-2, -2)) 29 .Do(x => { throw new Exception(); }); 30 31 // 抛出异常 32 calculator.Add(-2, -2); 33 }