public void TestClear()
        {
            List<string> strings1 = new List<string>();

            PrimaryKeyCollection collection = new PrimaryKeyCollection();
            collection.Add(strings1);
            collection.Clear();

            Assert.IsFalse(collection.Contains(strings1));
        }
 public void TestDoesNotContain()
 {
     List<string> strings = new List<string>();
     PrimaryKeyCollection collection = new PrimaryKeyCollection();
     Assert.IsFalse(collection.Contains(strings));
 }
 public void TestContainsItem()
 {
     List<string> strings = new List<string>();
     PrimaryKeyCollection collection = new PrimaryKeyCollection();
     collection.Add(strings);
     Assert.IsTrue(collection.Contains(strings));
 }