public void TestIntersectWith()
{
var a = new RedBlackSetTester<int>(_even);
Assert.That(() => a.IntersectWith(null), Throws.InstanceOf<ArgumentNullException>());
a.IntersectWith(_primes);
Assert.That(a, Has.Count.EqualTo(1));
Assert.That(a.Contains(2));
a.IntersectWith(_odd);
Assert.That(a, Is.Empty);
}
public void TestUnionWith()
{
var a = new RedBlackSetTester<int>(_odd.Where(UpTo100));
Assert.That(() => a.SymmetricExceptWith(null), Throws.InstanceOf<ArgumentNullException>());
int count = a.Count;
a.UnionWith(_primes);
Assert.That(a.Count, Is.EqualTo(count + 1));
Assert.That(a.Contains(2));
a.UnionWith(_even.Where(UpTo100));
Assert.That(a.SetEquals(_numbers));
}
public void TestSymmetricExceptWith()
{
var a = new RedBlackSetTester<int>(_odd.Where(UpTo100));
Assert.That(() => a.SymmetricExceptWith(null), Throws.InstanceOf<ArgumentNullException>());
a.SymmetricExceptWith(_even.Where(UpTo100));
Assert.That(a.SetEquals(_numbers));
a.Clear();
a.AddRange(_primes);
a.SymmetricExceptWith(_odd.Where(UpTo100).Concat(Enumerable.Repeat(2, 2)));
Assert.That(a.Contains(_primes.First()), Is.False);
Assert.That(_primes.Skip(1).All(p => !a.Contains(p)));
}