public void EvaluateStringSlice()
{
Assert.AreEqual("oobar", this.EvaluateExpression("'foobar'.slice(1)"));
Assert.AreEqual("oob", this.EvaluateExpression("'foobar'.slice(1, 4)"));
Assert.AreEqual("bar", this.EvaluateExpression("'foobar'.slice(-3)"));
Assert.AreEqual("ooba", this.EvaluateExpression("'foobar'.slice(1, -1)"));
}