ok");
        });

        test('layout-around-aligned', function() {
          container.classList.add('around-aligned');
          assert.isTrue(positionEquals(container, 0, 300, 0, 120), "container position ok");
          var center = (300 - 50) / 2;
          assert.isTrue(positionEquals(c1, 25, 75, 0, 50), "child 1 position ok");
          assert.isTrue(positionEquals(c2, 25, 75, 50, 100), "child 2 position ok");
          assert.isTrue(positionEquals(c3, center, center+50, 0, 50), "child 3 position o