public void Test_Clear()
{
Tree t = new Tree();
Assert.AreEqual(t.Count, 0);
t.Clear();
Assert.AreEqual(t.Count, 0);
t.Add("one", "one");
Assert.AreEqual(t.Count, 1);
t.Clear();
Assert.AreEqual(t.Count, 0);
}
private Tree data()
{
Tree t = new Tree();
t.Add("one", "one");
t["2"] = "12";
t["~"] = "2~";
t["a~"] = "3a~";
t["~a"] = "4~a";
t[" "] = "5 ";
t[" "] = "6 ";
Assert.AreEqual(t.Count, 7);
Assert.IsTrue(t.Contains("~"));
Assert.IsTrue(!t.Contains("~~"));
return t;
}