public void ShouldUnExecuteLayerSnapshotCommandsOnUnExecute()
{
TestableLayerSnapshotCommand layerSnapshotCommand = new TestableLayerSnapshotCommand();
TestableLayerSnapshotCommand anotherLayerSnapshotCommand = new TestableLayerSnapshotCommand();
CompositeUndoableCommand <LayerSnapshotCommand> command = new CompositeUndoableCommand <LayerSnapshotCommand>(new List <LayerSnapshotCommand> {
layerSnapshotCommand, anotherLayerSnapshotCommand
});
command.Execute();
command.UnExecute();
Assert.IsTrue(layerSnapshotCommand.UnExecuteCommandCalled);
Assert.IsTrue(anotherLayerSnapshotCommand.UnExecuteCommandCalled);
}