public void GetByMessage_ShouldReturnANotification_KeyExists()
{
_sut = new Notifier();
_sut.AddNotification(new("key", "value"));
Assert.NotNull(_sut.GetByMessage("value").First());
}
public void GetByMessage_ShouldReturnNull_KeyNotExists()
{
_sut = new Notifier();
Assert.Null(_sut.GetByMessage("value"));
}
public void GetByMessage_MustThrowArgumentException_KeyIsNullOrEmpty()
{
_sut = new Notifier();
Assert.Throws <ArgumentException>(() => _sut.GetByMessage(null));
}
