public void WhenAttacked_DamageIsSubstractedFromHP()
{
GamePlayer systemUnderTest = CreateSystem();
MockDamageCalculator.GetDamageFromMonster(Arg.Any <IGameMonster>(), Arg.Any <IGamePlayer>()).Returns(10);
systemUnderTest.HP = 100;
systemUnderTest.MaxHP = 100;
systemUnderTest.OnAttacked(Substitute.For <IGameMonster>());
Assert.AreEqual(90, systemUnderTest.HP);
}
public void OnAttacked(IGameMonster i_monster)
{
int damageTaken = mDamageCalculator.GetDamageFromMonster(i_monster, this);
AlterHP(-damageTaken);
}