public void ShouldBeAbleToConvertANumberThatIsNegativeABillion()
{
// Setup
const double numberToFormat = -1000000000;
INumberFormatter formatter = new BillionNumberFormatter();
// Test
bool result = formatter.CanHandle(numberToFormat);
//Verify
Assert.AreEqual(true, result);
}
public void ShouldNotAbleToConvertNumberThatIsLessThanABillion()
{
// Setup
const double numberToFormat = 999999999;
INumberFormatter formatter = new BillionNumberFormatter();
// Test
bool result = formatter.CanHandle(numberToFormat);
//Verify
Assert.AreEqual(false, result);
}