public void TestInvoiceCalc()
{
InvoiceCalculation obj = new InvoiceCalculation();
int intTotalCost = obj.CalculationCost(10, 20);
Assert.AreEqual(100, intTotalCost);
}
public void CalculationCostTest()
{
//Assert.IsTrue(true);
InvoiceCalculation obj = new InvoiceCalculation();
int intTotalCost = obj.CalculationCost(10, 20);
Assert.AreEqual(200, intTotalCost);
}