@Test
void loadConfigFromResource_whenUsingAlternateArg() throws ConfigKeysNotRecognisedException {

    ConfigManager cm = new ConfigManager.Builder(new String[] { "-a=test-config-resource.properties" }).withConfig(TestConfig.class).build();
    assertThat(cm.getConfig(TestConfig.class).areKeyAndValueDefined(TestConfig.FOO)).isTrue();
}