@Override
    public void simpleInitApp() {
        glRenderer.setAlphaToCoverage(false);
        assert !glRenderer.getAlphaToCoverage();

        caps.add(Caps.Multisample);
        glRenderer.setAlphaToCoverage(true);
        assert glRenderer.getAlphaToCoverage();
        glRenderer.setAlphaToCoverage(false);
        assert !glRenderer.getAlphaToCoverage();

        glRenderer.setDefaultAnisotropicFilter(1);
        assert glRenderer.getDefaultAnisotropicFilter() == 1;

        stop();
    }
Simple application to test the getter and setters of AlphaToCoverage and
DefaultAnisotropicFilter from the GLRenderer class.

Since the app doesn't display anything relevant a stop() has been added
This starts and closes the app on a successful run
jme3-examples/src/main/java/jme3test/renderer/TestAlphaToCoverage.java