client = runner.client();
}

@Before
public void before() {
    runner.admin().indices().prepareDelete("_all").execute().actionGet();
}

@AfterClass
public static void afterClass() {
    runner.close();
    runner.clean();
}
```

### Testing Best Practices

- Minimize `Thread.sleep()` - use only when absolutely necessary

        defaultReadingConverter = createDefaultReadingConverter();
        defaultNormalizer = createDefaultNormalizer();
    }

    @AfterClass
    public static void afterClass() throws Exception {
        if (runner != null) {
            runner.close();
            runner.clean();
        }
    }

    // ============================================================

        runner.ensureYellow();
        suggester = Suggester.builder().build(runner.client(), TEST_ID);
        suggester.createIndexIfNothing();
    }

    @AfterClass
    public static void afterClass() throws Exception {
        runner.close();
        runner.clean();
    }

    @Before
    public void before() throws Exception {
        suggester.indexer().deleteAll();

        runner.ensureYellow();
        suggester = Suggester.builder().build(runner.client(), TEST_ID);
        suggester.createIndexIfNothing();
        writer = new SuggestIndexWriter();
    }

    @AfterClass
    public static void afterClass() throws Exception {
        runner.close();
        runner.clean();
    }

    @Before
    public void before() throws Exception {
        suggester.indexer().deleteAll();

                        .numOfNode(1)
                        .pluginTypes("org.codelibs.opensearch.extension.ExtensionPlugin"));
        runner.ensureYellow();
    }

    @AfterClass
    public static void afterClass() throws Exception {
        runner.close();
        runner.clean();
    }

    @Before
    public void before() throws Exception {