assertThat(defaultFs, startsWith("file"));
Map<String, String> environment = TestUtils.readField("environment", defaultYarnClientFactoryBean);
assertNotNull(environment);
ResourceLocalizer resourceLocalizer = TestUtils.readField("resourceLocalizer", defaultYarnClientFactoryBean);
assertNotNull(resourceLocalizer);
List<String> commands = TestUtils.readField("commands", defaultYarnClientFactoryBean);
assertNotNull(commands);
assertThat(commands.size(), is(1));