public void Test_contains()
{
MyPriorityQueue <char> queue = new MyPriorityQueue <char>();
queue.Add('a');
queue.Add('d');
queue.Add('g');
queue.Add('x');
queue.Add('z');
Assert.True(queue.Contains('a'));
Assert.True(queue.Contains('z'));
Assert.True(queue.Contains('g'));
Assert.False(queue.Contains('r'));
Assert.False(queue.Contains('u'));
Assert.False(queue.Contains('i'));
}
