Using NUnit to test for any type of exception

Question

I have a class that creates a file.

I am now doing integration tests to make sure the class is ok.

I am passing in invalid directory and file names to make sure exceptions are thrown.

In my tests are I am using:

[Test] public void CreateFile_InvalidFileName_ThrowsException() {     //Arrange     var logger = SetupLogger("?\\");      //Act      //Assert     Assert.Throws<Exception>(()=> logger.CreateFile());  } 

However in this scenario the test is failing as an ArgumentException is thrown. I thought by adding just Exception it would pass.

Is there a way to make this pass just using Exception?

Answer 1

The help for Assert.Throws<> states that it "Verifies a delegate throws a particular type of exception when called"

Try the Assert.That version as it will catch any Exception:

private class Thrower {     public void ThrowAE() { throw new ArgumentException(); } }  [Test] public void ThrowETest() {     var t = new Thrower();     Assert.That(() => t.ThrowAE(), Throws.Exception); }