public void CopyTo()
{
var td = new TypeList <IServiceCollection> {
typeof(ServiceCollection)
};
var array = new Type[1];
Should.Throw <ArgumentNullException>(() => td.CopyTo(null, 0));
Should.Throw <ArgumentException>(() => td.CopyTo(array, 1));
Should.Throw <ArgumentOutOfRangeException>(() => td.CopyTo(array, -1));
Should.NotThrow(() => td.CopyTo(array, 0));
array[0].ShouldBe(typeof(ServiceCollection));
}