@Test
    public void testGetFromFile() {
        ConfigGetter<AppConfig> getter = new ConfigGetter<>(AppConfig.class);
        AppConfig config = getter.getConfig("file:src/test/resources/configs/foo/app.cfg");
        verifyFooValues(config);
    }
Unit test for the {@link ConfigGetter}.

@author gjoranv
config/src/test/java/com/yahoo/config/subscription/ConfigGetterTest.java