question: the arrangement should be able to handle null blocks in the layout . concode_field_sep double EPSILON concode_field_sep void testNR concode_elem_sep void testGridNotFull_FF concode_elem_sep void testGridNotFull_NN concode_elem_sep void testNullBlock_FF concode_elem_sep void testNullBlock_NN concode_elem_sep void testNN concode_elem_sep void testRR concode_elem_sep void testGridNotFull_FN concode_elem_sep void testSerialization concode_elem_sep void testFN concode_elem_sep void testRF concode_elem_sep BlockContainer createTestContainer1 concode_elem_sep void testCloning concode_elem_sep void testGridNotFull_FR concode_elem_sep void testRN concode_elem_sep void testNullBlock_FN concode_elem_sep void testNF concode_elem_sep void testEquals
target: void function ( ) { BlockContainer loc0 = new BlockContainer ( new GridArrangement ( 1 , 1 ) ) ; loc0 . add ( null ) ; Size2D loc1 = loc0 . arrange ( null , new RectangleConstraint ( 30.0 , new Range ( 5.0 , 10.0 ) ) ) ; assertEquals ( 30.0 , loc1 . getWidth ( ) , EPSILON ) ; assertEquals ( 5.0 , loc1 . getHeight ( ) , EPSILON ) ; }