public void CannotAddDuplicateComponentsToEntity()
{
var component = new MockComponent1("comp1", 1);
var componentDupe = new MockComponent1("dupe", 2);
var entity = new Entity().AddComponent(component);
Assert.Throws <InvalidOperationException>(() => entity.AddComponent(componentDupe));
}
public void CanAddComponentsToEntityAndRetrieveThem()
{
var component1 = new MockComponent1("comp1", 1);
var component2 = new MockComponent2("comp2", true);
var entity = new Entity().AddComponent(component1).AddComponent(component2);
Assert.True(entity.HasComponent <MockComponent1>());
Assert.True(entity.HasComponent <MockComponent2>());
Assert.Equal(component1, entity.GetComponent <MockComponent1>());
Assert.Equal(component2, entity.GetComponent <MockComponent2>());
Assert.True(entity.TryGetComponent <MockComponent1>(out var retrievedComponent1));
Assert.True(entity.TryGetComponent <MockComponent2>(out var retrievedComponent2));
Assert.Equal(component1, retrievedComponent1);
Assert.Equal(component2, retrievedComponent2);
}
public void CanRemoveComponentsFromEntity()
{
var component1 = new MockComponent1("comp1", 1);
var component2 = new MockComponent2("comp2", true);
var entity = new Entity().AddComponent(component1).AddComponent(component2).RemoveComponent <MockComponent1>();
Assert.False(entity.HasComponent <MockComponent1>());
Assert.ThrowsAny <Exception>(() => entity.GetComponent <MockComponent1>());
Assert.False(entity.TryGetComponent <MockComponent1>(out var retrievedComponent1));
Assert.Null(retrievedComponent1);
Assert.True(entity.HasComponent <MockComponent2>());
Assert.Equal(component2, entity.GetComponent <MockComponent2>());
Assert.True(entity.TryGetComponent <MockComponent2>(out var retrievedComponent2));
Assert.Equal(component2, retrievedComponent2);
}
