public void EvaluateTest()
{
Rational e = new Rational(1, 2);
Assert.AreEqual(0.5, e.EvaluateDecimal());
e = new Rational(1, 3);
Assert.AreEqual(Math.Round(1.0 / 3.0, 15), Math.Round(e.EvaluateDecimal(), 15));
e = new Rational(3, 2);
Assert.AreEqual(1.5, e.EvaluateDecimal());
e = new Rational(-3, 2);
Assert.AreEqual(-1.5, e.EvaluateDecimal());
Assert.AreEqual("0.500", new Rational(1, 2).EvaluateString(3));
Assert.AreEqual("1.500", new Rational(3, 2).EvaluateString(3));
Assert.AreEqual("-158.883", new Rational(-158883, 1000).EvaluateString(3));
Assert.AreEqual(-158.883m, new Rational(-158883, 1000).EvaluateDecimal());
}
