public void CalculateLandTax_TwoBuildingsBuilt_ReturnsCorrectResult() { w.Build(new Coordinates(2, 5), new ResidentialBuilding("FI MUNI")); w.Build(new Coordinates(5, 5), new IndustrialBuilding("FI MUNI")); Assert.AreEqual((decimal)57, w.CalculateLandTax(), "CalculatedLandTax is incorrect"); }