### Question:
Empty extends Tileable { @Override public boolean accepts(Direction direction, Marble marble) { return false; }  @Override boolean allowsConnection(Direction direction); @Override boolean accepts(Direction direction, Marble marble); @Override void accept(Direction direction, Marble marble);  }### Answer:
@Test public void acceptsLeftFalse() { assertThat(empty.accepts(Direction.LEFT, marble)).isFalse(); }
@Test public void acceptsRightFalse() { assertThat(empty.accepts(Direction.RIGHT, marble)).isFalse(); }
@Test public void acceptsTopFalse() { assertThat(empty.accepts(Direction.TOP, marble)).isFalse(); }
@Test public void acceptsBottomFalse() { assertThat(empty.accepts(Direction.BOTTOM, marble)).isFalse(); }