d 2 position ok");
          assert.isTrue(positionEquals(c3, 0, 50, 50, 100), "child 3 position ok");
        });
      });

      suite('flex', function() {
        var container;

        setup(function() {
          container = fixture('flex');
        });

        test('layout-flex child in a horizontal layout', function() {
          container.classList.add('horizontal');
          c2.classList.add('flex');
          assert.isTrue(positionEquals(container, 0, 50, 0, 300), "container position ok");
   