private void verifyFooValues(AppConfig config) {
        assertEquals("msg1", config.message());
        assertEquals(3, config.times());
        assertEquals("a0", config.a(0).name());
        assertEquals("a1", config.a(1).name());
        assertEquals("a2", config.a(2).name());
    }
Unit test for the {@link ConfigGetter}.

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