Assert IEnumerables

Question

As unit testing is not used in our firm, I\'m teaching myself to unit test my own code. I\'m using the standard .net test framework for some really basic unit testing.

A

Answer 1

There is a simple but not obvious way to do this with NUnit 3+ 'constraint' assertions:

Assert.That(result, Is.EqualTo(expected).AsCollection, "My failure message");

This will give you the same as the linq mentioned in other answers:

Assert.That(result.SequenceEqual(expected), "My failure message");

But the AsCollection version will tell you where the first difference is, and if the lengths are different.

See https://docs.nunit.org/articles/nunit/writing-tests/constraints/EqualConstraint.html#comparing-arrays-collections-and-ienumerables