jUnit how to use @Test(expected=...)

Question

I have this method:

public String getNum(int x) throws Exception { if(x == 0) { throws new Exception("x cannot be 0"); } ... }

now in my JUnit test, I try this

@Test(expected=Exception.class) public void testNum() { String x = getNum(0); }

But Eclipse still wants to me to either add a throws declaration or surround with try catch for String x = getNum(0);. What did I do wrong? This test should pass since I expected an Exception when I pass in 0.

Ian Dickinson · Accepted Answer · 2011-05-18 16:11:39Z

4

Just add a throws clause to the declaration of testNum?

answered May 18, 2011 at 16:11

Ian Dickinson

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2 Comments

Thang Pham Over a year ago

Thank you very much. I am such as noob

Michael Piefel Over a year ago

Everybody is blind at times. With > 2k points here you cannot really be a noob.

Constantiner · Accepted Answer · 2011-05-18 16:12:03Z

4

Just add throws declaration which Java compiler requires for checked exceptions. In your case it is nothing more than declaration :)

answered May 18, 2011 at 16:12

Constantiner

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1 Comment

Thang Pham Over a year ago

Thank you very much. I am such as noob

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