public void ChangeElementInArray()
{
this.EvaluateCommands("var arr = [1, 2, 3]; arr[1] = 5;");
Assert.AreEqual(3, this.EvaluateExpression("arr.length"));
Assert.AreEqual(1, this.EvaluateExpression("arr[0]"));
Assert.AreEqual(5, this.EvaluateExpression("arr[1]"));
Assert.AreEqual(3, this.EvaluateExpression("arr[2]"));
}