public void SolarSystemAddChild()
{
SolarSystem currentSolarSystem = new SolarSystem();
SolarSystem tempSolarSystem = new SolarSystem();
bool addSolarSystem = currentSolarSystem.AddChild(tempSolarSystem);
Assert.AreEqual(false, addSolarSystem);
Binary tempBinary = new Binary();
bool addBinary = currentSolarSystem.AddChild(tempBinary);
Assert.AreEqual(true, addBinary);
Star tempStar = new Star();
bool addStar = currentSolarSystem.AddChild(tempStar);
Assert.AreEqual(false, addStar);
Planet tempPlanet = new Planet();
bool addPlanet = currentSolarSystem.AddChild(tempPlanet);
Assert.AreEqual(true, addPlanet);
}
