public void TestContainsValue()
{
HashDictionary dict = new HashDictionary();
Assert.AreEqual(0, dict.Count);
Assert.IsFalse(dict.ContainsValue("B"));
Assert.IsFalse(dict.ContainsValue(null));
dict.Add("A", "A");
dict.Add("B", "B");
dict.Add("C", "C");
Assert.AreEqual(3, dict.Count);
Assert.IsTrue(dict.ContainsValue("B"));
Assert.IsFalse(dict.ContainsValue(null));
dict.Add(null, null);
Assert.AreEqual(4, dict.Count);
Assert.IsTrue(dict.ContainsValue("B"));
Assert.IsTrue(dict.ContainsValue(null));
dict.Remove("B");
Assert.AreEqual(3, dict.Count);
Assert.IsFalse(dict.ContainsValue("B"));
Assert.IsTrue(dict.ContainsValue(null));
dict.Remove(null);
Assert.AreEqual(2, dict.Count);
Assert.IsFalse(dict.ContainsValue("B"));
Assert.IsFalse(dict.ContainsValue(null));
dict.Clear();
Assert.AreEqual(0, dict.Count);
Assert.IsFalse(dict.ContainsValue("A"));
Assert.IsFalse(dict.ContainsValue(null));
}
public void TestSafeHashSet()
{
SafeHashSet set = new SafeHashSet();
Assert.AreEqual(0, set.Count);
Assert.IsFalse(set.Contains("B"));
Assert.IsFalse(set.Contains(null));
set.Add("A");
set.Add("B");
set.Add("C");
Assert.AreEqual(3, set.Count);
Assert.IsTrue(set.Contains("B"));
Assert.IsFalse(set.Contains(null));
set.Add(null);
Assert.AreEqual(4, set.Count);
Assert.IsTrue(set.Contains("B"));
Assert.IsTrue(set.Contains(null));
set.Remove("B");
Assert.AreEqual(3, set.Count);
Assert.IsFalse(set.Contains("B"));
Assert.IsTrue(set.Contains(null));
set.Remove(null);
Assert.AreEqual(2, set.Count);
Assert.IsFalse(set.Contains("B"));
Assert.IsFalse(set.Contains(null));
set.Clear();
Assert.AreEqual(0, set.Count);
Assert.IsFalse(set.Contains("A"));
Assert.IsFalse(set.Contains(null));
HashDictionary dict = new HashDictionary();
dict.Add("A", "A");
dict.Add("B", "B");
dict.Add("C", "C");
dict.Add("Null", null);
ICollection col = dict.Values;
set = new SafeHashSet(col);
Assert.AreEqual(4, set.Count);
Assert.IsTrue(set.Contains("A"));
Assert.IsTrue(set.Contains(null));
}