### Question:
SizeTransformers { public static Transformer<Size, Size> originalSize() { return new Transformer<Size, Size>() { @Override public Size transform(Size input) { return input; } }; }  static Transformer<Size, Size> originalSize(); static Transformer<Size, Size> scaled(final float scaleFactor);  }### Answer:
@Test public void originalSize() throws Exception { assertEquals( new Size(100, 200), SizeTransformers.originalSize().transform(new Size(100, 200)) ); }