public void CopyToTest()
{
ICollection<int> heap = new MaxHeap<int>(this.testInts, true);
int[] copy = new int[this.count];
heap.CopyTo(copy, 0);
for (int i = 0; i < this.count; i++)
{
Assert.True(copy[i] == ((MaxHeap<int>)heap)[i]);
}
Assert.Throws<ArgumentNullException>(() => heap.CopyTo(null, 0));
Assert.Throws<ArgumentOutOfRangeException>(() => heap.CopyTo(copy, -1));
Assert.Throws<ArgumentException>(() => heap.CopyTo(copy, 1));
}