//The GListEngineTests() constructor creates the MockedGListAccessor and passes it as the IGListAccessor argument into the GListEngine constructor
public GListEngineTests()
{
mockedGListAccessor = new MockedGListAccessor();
gListEngine = new GListEngine(mockedGListAccessor);
}
// using dependency injection to use engines' methods
public GListController(IGListEngine gListEngine, IItemsEngine itemsEngine)
{
_gListEngine = gListEngine;
_itemsEngine = itemsEngine;
}