protected override void Start()

in firestore/testapp/Assets/Firebase/Sample/Firestore/UIHandlerAutomated.cs [80:187]
90 lines of code
3 McCabe index (conditional complexity)

    protected override void Start() {
      // Set the list of tests to run, note this is done at Start since they are
      // non-static.
      Func<Task>[] tests = {
        // clang-format off
        TestDeleteDocument,
        TestWriteDocument,
        TestWriteDocumentViaCollection,
        TestWriteDocumentWithIntegers,
        TestUpdateDocument,
        TestListenForSnapshotsInSync,
        TestMultiInstanceDocumentReferenceListeners,
        TestMultiInstanceQueryListeners,
        TestMultiInstanceSnapshotsInSyncListeners,
        TestUpdateFieldInDocument,
        TestArrayUnionAndRemove,
        TestUpdateFieldPath,
        TestWriteBatches,
        TestTransaction,
        TestTransactionWithNonGenericTask,
        TestTransactionAbort,
        TestTransactionTaskFailures,
        TestTransactionRollsBackIfException,
        TestTransactionPermanentError,
        TestTransactionDispose,
        TestTransactionsInParallel,
        // Waiting for all retries is slow, so we usually leave this test disabled.
        // TestTransactionMaxRetryFailure,
        TestSetOptions,
        TestCanTraverseCollectionsAndDocuments,
        TestCanTraverseCollectionAndDocumentParents,
        TestDocumentSnapshot,
        TestDocumentSnapshotIntegerIncrementBehavior,
        TestDocumentSnapshotDoubleIncrementBehavior,
        TestDocumentSnapshotServerTimestampBehavior,
        TestSnapshotMetadataEqualsAndGetHashCode,
        TestAuthIntegration,
        TestDocumentListen,
        TestDocumentListenWithMetadataChanges,
        TestQueryListen,
        TestQueryListenWithMetadataChanges,
        TestQuerySnapshotChanges,
        TestQueries,
        TestLimitToLast,
        TestArrayContains,
        TestArrayContainsAny,
        TestInQueries,
        TestDefaultInstanceStable,
        TestGetAsyncSource,
        TestWaitForPendingWrites,
        TestTerminate,
        TestClearPersistence,
        TestObjectMappingSmokeTest,
        TestObjectMapping,
        TestNotSupportedObjectMapping,
        TestFirestoreSingleton,
        TestFirestoreSettings,
        TestDocumentReferenceTaskFailures,
        TestCollectionReferenceTaskFailures,
        TestAssertTaskFaults,
        TestInternalExceptions,
        TestListenerRegistrationDispose,
        TestLoadBundles,
        TestQueryEqualsAndGetHashCode,
        TestQuerySnapshotEqualsAndGetHashCode,
        TestDocumentSnapshotEqualsAndGetHashCode,
        TestDocumentChangeEqualsAndGetHashCode,
        TestLoadBundlesForASecondTime_ShouldSkip,
        TestLoadBundlesFromOtherProjects_ShouldFail,
        LoadedBundleDocumentsAlreadyPulledFromBackend_ShouldNotOverwrite,
        TestInvalidArgumentAssertions,
        TestFirestoreDispose,
        TestFirestoreGetInstance,
        // clang-format on
      };

      // For local development convenience, populate `testFilter` with the tests that you would like
      // to run (instead of running the entire suite).
      Func<Task>[] testFilter = {
        // THIS LIST MUST BE EMPTY WHEN CHECKED INTO SOURCE CONTROL!
      };

      // Unity "helpfully" adds stack traces whenever you call Debug.Log. Unfortunately, these stack
      // traces are basically useless, since the good parts are always truncated.  (See comments on
      // LogInBatches.) So just disable them.
      Application.SetStackTraceLogType(LogType.Log, StackTraceLogType.None);

      mainThreadDispatcher = gameObject.AddComponent<MainThreadDispatcher>();
      if (mainThreadDispatcher == null) {
        Debug.LogError("Could not create MainThreadDispatcher component!");
        return;
      }
      mainThreadDispatcher.RunOnMainThread(() => {
        MainThreadId = Thread.CurrentThread.ManagedThreadId;
      });

      testRunner = AutomatedTestRunner.CreateTestRunner(
        testsToRun: testFilter.Length > 0 ? testFilter : tests,
        logFunc: LogInBatches
      );

      Debug.Log("NOTE: Some API calls report failures using UnityEngine.Debug.LogError which will " +
                "pause execution in the editor when 'Error Pause' in the console window is " +
                "enabled.  `Error Pause` should be disabled to execute this test.");

      UIEnabled = false;
      base.Start();
    }