@Test
    public void testQuad() {
        Quad shape = new Quad(64, 16);
        Geometry geometry = new Geometry("geom", shape);
        BoundingVolume bv = geometry.getWorldBound();
        BoundingBox bb = (BoundingBox) bv;
        //Quad z extent 0 is normal, so not using testBounds() here.
        Assert.assertTrue(bb.getXExtent() > 0 && bb.getYExtent() > 0);
        testVertices(geometry);
    }
Tests that all shapes have had a world bound calculated, and that vertices are within those bounds. Test
added for issue #1121. This is a clear failure: BoundingBox [Center: (0.0, 0.0, 0.0) xExtent: 0.0 yExtent:
0.0 zExtent: 0.0]

@author lou
jme3-core/src/test/java/com/jme3/scene/shape/ShapeBoundsTest.java