settingsBuilder.put("discovery.type", "single-node");
        }).build(newConfigs().clusterName("SuggesterTest").numOfNode(1).pluginTypes("org.codelibs.opensearch.extension.ExtensionPlugin"));
        runner.ensureYellow();
        suggester = Suggester.builder().build(runner.client(), "SuggesterTest");
        suggester.createIndexIfNothing();
    }

    @AfterClass
    public static void afterClass() throws Exception {

```

### Testing

The project uses JUnit 4 with embedded OpenSearch for integration testing:

```bash
# Run all tests
mvn test

# Run specific test class
mvn test -Dtest=SuggesterTest

# Run with verbose output
mvn surefire:test -Dmaven.surefire.debug=true
```

### Running Tests with Coverage

```bash
mvn clean jacoco:prepare-agent test jacoco:report
```

    }

    /**
     * Integration test for complete index lifecycle with refactored methods.
     * Tests that createNextIndex and switchIndex work together correctly.
     * Note: Full lifecycle testing is covered by SuggesterTest.test_switchIndex()
     */
    @Test
    public void testIndexLifecycle_withRefactoredMethods() throws Exception {
        final Suggester suggester = Suggester.builder().build(client, "lifecycle-test");