public void IsSubsetOf_TwoElementsIntersect()
{
var foo = new[] { 1, 4, 5 };
GetFailureMessage(() => foo.IsSubsetOf(new[] { 4, 5, 6 }));
Verify.That(() => this.message == "Expected foo to be subset of {4, 5, 6} but difference was {1}");
}
