public void Copy()
{
KeyValuePair <int, string>[] data = new KeyValuePair <int, string> [5];
HashMap <int, string> map = new HashMap <int, string>();
KeyValuePair <int, string>[] expected = new KeyValuePair <int, string>[]
{
new KeyValuePair <int, string>(4, "d"),
new KeyValuePair <int, string>(5, "e"),
new KeyValuePair <int, string>(1, "a"),
new KeyValuePair <int, string>(2, "b"),
new KeyValuePair <int, string>(3, "c")
};
map.Add(1, "a");
map.Add(2, "b");
map.Add(3, "c");
data[0] = new KeyValuePair <int, string>(4, "d");
data[1] = new KeyValuePair <int, string>(5, "e");
map.CopyTo(data, 2);
Assert.Equal(expected, data);
}