public void Positive_PreAndPostconditionMethod_ThrowsIfArgNegative()
{
var demo = new PositiveConsumer();
Assert.Throws <PreconditionException>(() =>
demo.PreAndPostconditionMethod(-1));
}
public void Positive_PreAndPostconditionMethod_DoesNotThrowIfArgAndResultPositive()
{
var demo = new PositiveConsumer();
Assert.DoesNotThrow(() =>
demo.PreAndPostconditionMethod(100));
}
public void Positive_PreAndPostconditionMethod_ThrowsIfResult0()
{
var demo = new PositiveConsumer();
Func <string> textGenerator = () => null;
Assert.Throws <PostconditionException>(() =>
demo.PreAndPostconditionMethod(1));
}