public void CreateAddCombinationEditTest()
{
Dependency dependency = new Dependency();
Combination combination = new Combination();
ce.AddEdit(EditFactory.instance.CreateAddCombinationEdit(dependency, combination));
dependency.AddCombination(combination);
ce.End();
ce.Undo();
Assert.IsFalse(dependency.Combinations.Contains(combination));
ce.Redo();
Assert.IsTrue(dependency.Combinations.Contains(combination));
}
