public void LightChangeTest()
{
//BitmapImage bm = new BitmapImage();
var light = new TrafficLightControl()
{
State = LightStates.Red, Count = 1
};
light.UpdateLight();
//expected to turn green
Assert.AreEqual(LightStates.Green, light.State);
}
public void CountUpdateAfterTimeTest()
{
//BitmapImage bm = new BitmapImage();
var light = new TrafficLightControl()
{
State = LightStates.Green, Count = 10
};
//simulate 2 step
for (int i = 0; i < 2; i++)
{
light.UpdateLight();
}
//expected to keep green
Assert.AreEqual(LightStates.Green, light.State);
Assert.AreEqual(8, light.Count);
}
public void LightChangeAfterTimeTest()
{
//BitmapImage bm = new BitmapImage();
var greenCount = GlobalVariable.GreenDuration / GlobalVariable.TimerStep;
var yellowCount = GlobalVariable.YellowDuration / GlobalVariable.TimerStep;
var light = new TrafficLightControl()
{
State = LightStates.Green, Count = greenCount
};
//using loop to simulate the time change
for (int i = 0; i < greenCount + yellowCount; i++)
{
light.UpdateLight();
}
//expected to turn red
Assert.AreEqual(LightStates.Red, light.State);
}