public void GetAccountBalanceTest()
{
double gardenWidth = 0F;
double gardenHeight = 0F;
string ownerName = "Bob";
Garden target = new Garden(gardenWidth, gardenHeight, ownerName);
target.AddCharge(15);
target.AddCharge(5.5);
target.AddCharge(10.25);
double expected = 30.75;
double actual;
actual = target.GetAccountBalance();
Assert.AreEqual(expected, actual);
}