How to use identity comparison in AssertJ iterable assertions

Asked Jun 04 '20 at 13:58

Active Jun 04 '20 at 21:07

Viewed 137 times

I am using AssertJ fluent assertions in my code. Example:

assertThat(vertexSet).containsExactlyInAnyOrder(v0, v2, v4);

Now I need to use identity comparison instead of .equals(...). What is the simplest way to achieve this?

Here's what I came up with:

assertThat(vertexSet).usingComparator((x, y) -> {
    return x == y ? 0 : -1;
}).containsExactlyInAnyOrder(v0, v2, v4);

This works, but I don't particularly like it. Requires a Comparator implementation which has a bit wider semantics compared to equal/not equal check I am actually interested in.

Are there better options? Other assertions have variants like isEqualTo/isSameAs, but I could not find analogs in IterableAssert.

asked Jun 04 '20 at 13:58

lexicore

42,748
17
132
221

I guess in your example you meant `usingElementComparator` instead of `usingComparator` as the latter would have no effect on `contains` assertions. – Stefano Cordio Jun 07 '20 at 22:55
Why do you have to use anything but `equals()` ? – bachrc Jun 26 '20 at 16:00

How to use identity comparison in AssertJ iterable assertions

0 Answers0