### Question:
LayoutBuilder extends CanvasBuilder<T, B> { public B setMembersMargin(int membersMargin) { instance().setMembersMargin(membersMargin); return me(); } protected  LayoutBuilder(T instance); B setMembers(Canvas... members); B setMembersMargin(int membersMargin);  }### Answer:
@Test public void test_setsMembersMargin() { layoutBuilder.setMembersMargin(5); verify(layout).setMembersMargin(5); }
@Test public void test_returnsBuilderWhenSettingMembersMargin() { assertEquals(layoutBuilder, layoutBuilder.setMembersMargin(5)); }