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