@Test
    public void testSaveWhenPathDoesExist() throws IOException {
        File file = fileWithExistingParent();
        exporter.save(material, file);
        Assert.assertTrue(file.exists());
    }
Tests the methods on classes that implements the JmeExporter interface.
jme3-plugins/src/test/java/com/jme3/export/JmeExporterTest.java