public void Union()
{
// Union with PowerSet2 contains 5 items (expected 8 unique items)
testPowerSet = testPowerSet1.Union(testPowerSet2);
Assert.AreEqual(8, testPowerSet.capacity);
Assert.AreEqual(true, testPowerSet.Get(8));
Assert.AreEqual(true, testPowerSet.Get(10));
Assert.AreEqual(true, testPowerSet.Get(12));
Assert.AreEqual(true, testPowerSet.Get(14));
Assert.AreEqual(true, testPowerSet.Get(16));
Assert.AreEqual(true, testPowerSet.Get(162));
Assert.AreEqual(true, testPowerSet.Get(0));
Assert.AreEqual(true, testPowerSet.Get(5));
Assert.AreEqual(false, testPowerSet.Get(13));
// Union with empty set
Assert.AreEqual(5, testPowerSet1.Union(testPowerSet0).capacity);
Assert.AreEqual(5, testPowerSet0.Union(testPowerSet1).capacity);
}