public void Calculate_SetsWireOutToTrue_ForWireInIsFalse() { // Arrange Inverter sut = CreateSut(m_WireIn, m_WireOut); m_WireIn.SetSignal(TimeDoesNotMatter, false); // Act sut.Calculate(TimeDoesNotMatter); // Assert m_WireOut.GetSignal().ShouldBeTrue(); }