public void PostalService1stTest()
{
PostalService1st testPostage1 = new PostalService1st();
Assert.AreEqual(39.00, testPostage1.CalculateRate(200, 48));
Assert.AreEqual(0.94, testPostage1.CalculateRate(20, 15));
Assert.AreEqual(1.60, testPostage1.CalculateRate(40, 7));
}
public void PostalService1Test()
{
PostalService1st postalService1Test = new PostalService1st();
Assert.AreEqual(4.7, postalService1Test.CalculateRate(100, 10));
}