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Java Unit Testing in Java What to Test Happy Path Exception

Tony Gemenie
Tony Gemenie
3,781 Points
Posted by Tony Gemenie
Tony Gemenie
3,781 Points

Argument Exception Not Found

Hey guys!

I have an error when doing this exercise. Anybody know what may be going On?

@Test (expected = NotEnoughFundsException.class)
public void noteEnoughFundsToVend() {
  creditor.addFunds(50);
  creditor.deduct(75);
}

1 Answer

Mihai Craciun
Mihai Craciun
13,520 Points
Mihai Craciun
Mihai Craciun
13,520 Points

You have to throw an exception in the method signature. You almost got it.

@Test (expected = NotEnoughFundsException.class)
public void noteEnoughFundsToVend() throws Exception{
  creditor.addFunds(50);
  creditor.deduct(75);
}
Tony Gemenie
Tony Gemenie
3,781 Points
Tony Gemenie
Tony Gemenie
3,781 Points

Hey Mihai!

Good to hear from you! From my reading of the deduct() method if you don't have enough in the member variable money then the exception is thrown. Is this incorrect?

Mihai Craciun
Mihai Craciun
13,520 Points
Mihai Craciun
Mihai Craciun
13,520 Points

Well yes but the method that uses the deduct method has to throw that Exception in order to handle it first. Or you can surround the method with a try/catch statement.