public void Should_have_list_of_orbiting_bodies()
{
var planet = new OrbitingBody()
{
Name = "Test"
};
Assert.That(planet.OrbitingBodies, Is.InstanceOf <IEnumerable <IOrbitingBody> >());
planet.AddPlanet(new OrbitingBody()
{
Name = "moon"
});
Assert.That(planet.OrbitingBodies.Count, Is.EqualTo(1));
Assert.That(planet.OrbitingBodies.First(p => p.Name == "moon"), Is.InstanceOf <IOrbitingBody>());
}
public void Should_calculate_orbit_depth()
{
var sun = new OrbitingBody()
{
Name = "Sun"
};
var earth = new OrbitingBody()
{
Name = "Earth"
};
var moon = new OrbitingBody()
{
Name = "Moon"
};
sun.AddPlanet(earth);
earth.AddPlanet(moon);
Assert.That(moon.OrbitDepth, Is.EqualTo(2));
}
public void Should_have_list_of_orbits_back_to_centre()
{
var sun = new OrbitingBody()
{
Name = "Sun"
};
var earth = new OrbitingBody()
{
Name = "Earth"
};
var moon = new OrbitingBody()
{
Name = "Moon"
};
sun.AddPlanet(earth);
earth.AddPlanet(moon);
Assert.That(moon.Orbits, Is.InstanceOf <IEnumerable <IOrbitingBody> >());
}
