### Question:
HSplitLayout extends HLayout { public Canvas getRightMember() { return right; } HSplitLayout(); static Builder buildHSplitLayout(); void setProportions(double proportion); Canvas getLeftMember(); void setLeftMember(Canvas member); Canvas getRightMember(); void setRightMember(Canvas member);  }### Answer:
@Test public void test_returnsNullIfNoRightMemberSet() { assertNull(hSplitLayout.getRightMember()); }