// This test should be redundant since the validation in the input feilds and at the class level make it HIGHLY unlikely
// a negative value will ever be passed into the calculation
public void CalculateRateResidentialNegativeHoursTest()
{
// Arrange
Residential client = new Residential(); // create a new client object
decimal returnAmt; // holds the return from CaclulateRate()
decimal expectedAmt = 6.00m; // $6 is the base rate a Residential customer will pay regardless of usage
client.Hours = -100; // set the usage hours to -100, validation should set it to 0
// Act
returnAmt = client.CalculateRate();
// Assert
Assert.AreEqual(expectedAmt, returnAmt);
}
public void CalculateRateResidentialNonZeroHoursTest()
{
// Arrange
Residential client = new Residential(); // create a new client object
decimal returnAmt; // holds the return from CaclulateRate()
decimal expectedAmt = 11.20m; // $6 is the base rate a Residential customer will pay regardless of usage, plus 5.20 for 100 hours * $0.052/hr
client.Hours = 100; // set the usage hours to 100
// Act
returnAmt = client.CalculateRate();
// Assert
Assert.AreEqual(expectedAmt, returnAmt);
}