[FIXED] ArrayList equality JUnit testing

Issue

I want to use the assertArrayEquals(ArrayList<Token>, ArrayList<Token>) with these arguments (i.e. arrayList of tokens). But Java tells me I need to create such a method. Is there a way to test for the equality of two arrayLists of whatever type in Junit?

Solution

I want to use the assertArrayEquals(ArrayList<Token>, ArrayList<Token>) with these arguments (i.e. arrayList of tokens). But Java tells me I need to create such a method.

It's telling you that you need to create the method because there is no such method in the JUnit library. There isn't such a method in the JUnit library because assertArrayEquals is for comparing arrays, and and ArrayList is not an array—it's a List.

Is there a way to test for the equality of two arrayLists of whatever type in Junit?

You can check the equality of two ArrayLists (really, any two List objects) using equals, so you should be able to use JUnit's assertEquals method and it will work just fine.

Answered By - DaoWen
Answer Checked By - David Marino (JavaFixing Volunteer)