I have a method that's declared as returning `Set&...

# kotest

[Jonathan Lennox]

I have a method that's declared as returning Set<MyType>. I'm writing a test that uses shouldContainExactly to test it. When I instantiate the return value as a LinkedHashSet it works, but when I instead instantiate it as a HashSet I get:

Disallowed: Set can be compared only to Set
java.lang.AssertionError: Disallowed: Set can be compared only to Set
May not compare HashSet with ArrayList
expected:<*> but was:<*>

What's going on here?

[Jonathan Lennox]

Oh, I guess shouldContainExactly requires the set to be ordered - what matcher should I use to match an unordered collection? (Also, that error message is terrible.)

[LeoColman]

shouldContainExactlyInAnyOrder, I think

[Jonathan Lennox]

Yep, that worked, thanks

[Jonathan Lennox]

I'll file a bug report about the error message.

[sam]

is shouldContainExactly the same as just shouldBe in this case?

[Jonathan Lennox]

I think for shouldBe you'd have to construct the LinkedHashSet, and it'd fail if the actual type was a subtype? But I'm not sure

[sam]

That makes sense