public void SimpleValueTests() { Set<int> empty = new Set<int>(); Set<int> a = new Set<int>(1, 2, 3); Set<int> b = new Set<int>(3, 4, 5); Set<int> a_and_b = a + b; Assert.AreEqual("{}", empty.ToString()); Assert.AreEqual("{ 1, 2, 3 }", a.ToString()); Assert.AreEqual("{ 3, 4, 5 }", b.ToString()); Assert.AreEqual("{ 1, 2, 3, 4, 5 }", a_and_b.ToString()); Assert.AreEqual("{}", (empty * a).ToString()); Assert.AreEqual("{}", (a * empty).ToString()); Assert.IsTrue(a_and_b * a == a); Assert.IsTrue((a_and_b * a).Equals(a)); Assert.IsTrue(a_and_b - a == new Set<int>(4, 5)); Assert.IsTrue(a - a == new Set<int>()); Assert.IsTrue(a * a == a); Assert.IsTrue(a.IsSubsetOf(a_and_b)); Assert.IsTrue(b.IsSubsetOf(a_and_b)); Assert.IsTrue(a_and_b.IsSubsetOf(a_and_b)); Assert.IsTrue(a.IsSubsetOf(a)); Assert.IsTrue(b.IsSubsetOf(b)); Assert.IsFalse(a.IsSubsetOf(b)); Assert.IsFalse(b.IsSubsetOf(a)); Assert.IsFalse(a_and_b.IsSubsetOf(a)); Assert.IsFalse(a_and_b.IsSubsetOf(b)); Set<int> a_copy = a.Copy(); Set<int> b_copy = b.Copy(); a.UnionUpdate(b); Assert.AreEqual(a, a_and_b); a.DifferenceUpdate(b); Assert.AreEqual(a, a_and_b - b); a.UnionUpdate(9); Assert.AreEqual(a, (a_and_b - b) + new Set<int>(9)); a.DifferenceUpdate(1); Assert.AreEqual(a, (a_and_b - b) + new Set<int>(9) - new Set<int>(1)); a_copy.IntersectionUpdate(b_copy); Assert.AreEqual(new Set<int>(3), a_copy); }