### Question:
NetflixConfig { static Config loadPropFiles() { final Properties props = new Properties(); Env.addDefaults(props); final String env = Env.environment(); final String acctId = Env.accountId(); tryLoadingConfig(props, "atlas_plugin"); tryLoadingConfig(props, "atlas_plugin-" + env); tryLoadingConfig(props, "atlas_plugin-acct-" + acctId); return MapConfig.from(props); } private  NetflixConfig(); static Config createConfig(Config config); static Map<String, String> commonTags();  }### Answer:
@Test public void defaultEnvVarsAreSet() { Config config = NetflixConfig.loadPropFiles(); Assertions.assertEquals("test", config.getString("NETFLIX_ENVIRONMENT")); Assertions.assertEquals("unknown", config.getString("EC2_OWNER_ID")); Assertions.assertEquals("us-east-1", config.getString("EC2_REGION")); }