private final String name;

    public IntegerSubscriber(String name) {
      this.name = name;
    }

    @Subscribe
    public void handleInteger(Integer integer) {
      dispatchedSubscribers.add(this);
      dispatcher.dispatch("hello", stringSubscribers.iterator());
    }

    @Override
    public String toString() {
      return name;
    }
  }

  public final class StringSubscriber {

(minio server http://localhost:9000/tmp/xl/{1...10}/disk{0...1} 2>&1 >/dev/null) &
pid=$!

export MC_HOST_myminio="http://minioadmin:minioadmin@localhost:9000/"

./mc ready myminio

./mc admin user add myminio/ minio123 minio123
./mc admin user add myminio/ minio12345 minio12345

./mc admin policy create myminio/ rw ./docs/distributed/rw.json
./mc admin policy create myminio/ lake ./docs/distributed/rw.json

                    FunctionalTestBucket(it).toBuildTypeBucket(model.subprojects)
                }

            // Sometimes people may add new subproject into `subprojects.json`
            // in this case we have no historical test running time, so we simply add these subprojects into first available bucket
            val allSubprojectsInBucketJson = buckets.flatMap { it.subprojects.map { it.name } }.toSet()

2. Write implementation following existing patterns
3. Add comprehensive tests
4. Run `mvn formatter:format license:format test`
5. Update JavaDoc for changed/new classes

**Principles:**
- Avoid over-engineering - keep solutions simple
- Only expose necessary public APIs
- Validate parameters with `Objects.requireNonNull()`
- Provide detailed error messages with context
- Add logging with contextual information

        List<String> messages = new ArrayList<>();

        @Override
        public void add(Severity severity, String message, int line, int column, Exception cause) {
            messages.add(message);
        }
    }

{* ../../docs_src/app_testing/app_a_py39/test_main.py hl[3] *}


...and have the code for the tests just like before.

## Testing: extended example { #testing-extended-example }

Now let's extend this example and add more details to see how to test different parts.

### Extended **FastAPI** app file { #extended-fastapi-app-file }

Let's continue with the same file structure as before:

```
.
├── app

	// metrics required a list of buckets to be passed to the loader, and the list
	// of buckets is not known until the request is made. So we keep a separate
	// map for bucket metrics and handle them specially.

	// Add the serverName and poolIndex labels to all non-cluster metrics.
	//
	// Also create metric group maps and set the cache.
	metricsCache := newMetricsCache()
	mgMap := make(map[collectorPath]*MetricsGroup)

                // Add objects (excluding the prefix itself if it matches exactly)
                for (final S3Object s3Object : listResponse.contents()) {
                    final String objectKey = s3Object.key();
                    if (!objectKey.equals(path)) {

        if (!loaded.isEmpty()) {
            result.add(new CoreExtensions(file, loaded));
        }

        // user
        file = context.userHomeDirectory.resolve(eff.get(Constants.MAVEN_USER_EXTENSIONS));
        loaded = readCoreExtensionsDescriptorFromFile(file, true);
        if (!loaded.isEmpty()) {
            result.add(new CoreExtensions(file, loaded));
        }

        // installation

        Object newValue = new Object();
        assertThat(cache.asMap().put(entry.getKey(), newValue)).isSameInstanceAs(entry.getValue());
        // don't let the new entry get GCed
        warmed.add(entryOf(entry.getKey(), newValue));
        Object newKey = new Object();
        assertThat(cache.asMap().put(newKey, entry.getValue())).isNull();
        // this getUnchecked() call shouldn't be a cache miss; verified below