public void SetUp()
{
_array = new StringArray(2, 3);
_readOnly = _array.AsReadOnly();
Assert.AreEqual(6, _array.Length);
Assert.AreEqual(2, _array.Rank);
Assert.AreEqual(2, _array.GetLength(0));
Assert.AreEqual(3, _array.GetLength(1));
_array[0, 0] = "one"; _array[0, 1] = "two"; _array[0, 2] = "three";
_array[1, 0] = "four"; _array[1, 1] = "five"; _array[1, 2] = "six";
}