public void ShouldErrorWhenNumberIsTooBigAndCheckDivideByParameter()
{
var calc = new BasicCalculator();
Assert.That(() => calc.Divide(number: 101, divideBy: 2),
Throws.TypeOf <ArgumentOutOfRangeException>()
.With.Matches <ArgumentOutOfRangeException>(x => x.ParamName == "divideBy"));
}
public void ShouldNotAllowDividingByZero()
{
var calc = new BasicCalculator();
//first parameter = code we expect to throw the exception
//setcond parameter = exception which is thrown
Assert.That(() => calc.Divide(number: 100, divideBy: 0), Throws.Exception);
//The following does not work
//Action action = () => { calc.Divide(number: 100, divideBy: 0); };
//Assert.That(action, Throws.Exception);
//Does not work
//Action action = () => calc.Divide(number: 100, divideBy: 0);
//Assert.That(action, Throws.Exception);
//works fine
TestDelegate dlg = () => calc.Divide(number: 100, divideBy: 0);
Assert.That(dlg, Throws.Exception);
//Explicit exception type
Assert.That(() => calc.Divide(number: 100, divideBy: 0), Throws.TypeOf <DivideByZeroException>());
}
public void ShouldErrorWhenNumberIsTooBig()
{
var calc = new BasicCalculator();
Assert.That(() => calc.Divide(number: 101, divideBy: 2), Throws.TypeOf <ArgumentOutOfRangeException>());
}