patbond-flutter/test/analytics/analytics_service_test.dart

import 'package:flutter_test/flutter_test.dart';
import 'package:patbond_flutter/analytics/analytics_service.dart';

void main() {
  group('AnalyticsService', () {
    test('tracks event with required fields', () async {
      final service = AnalyticsService(
        apiBaseUrl: 'http://test',
        getAccessToken: null,
      );

      // Never throws, never awaits network (fire-and-forget).
      expect(
        () => service.trackEvent('auth_login_succeeded', {
          'identifierType': 'username',
          'durationMs': 123,
        }),
        returnsNormally,
      );
    });

    test('rejects events with forbidden field patterns', () async {
      final service = AnalyticsService(
        apiBaseUrl: 'http://test',
        getAccessToken: null,
      );

      // Forbidden field triggers local rejection (no throw, silent drop).
      await service.trackEvent('auth_login_succeeded', {
        'userPassword': 'leak', // Forbidden pattern
      });

      // Event should be dropped (no assertion — just verify no crash).
    });

    test('identify sets userId', () {
      final service = AnalyticsService(
        apiBaseUrl: 'http://test',
        getAccessToken: null,
      );

      service.identify('user-123');

      // Subsequent events will carry userId (validated in integration tests).
    });

    test('reset clears userId but keeps anonymousId', () {
      final service = AnalyticsService(
        apiBaseUrl: 'http://test',
        getAccessToken: null,
        anonymousId: 'anon-123',
      );

      service.identify('user-123');
      service.reset();

      // userId cleared, anonymousId retained (validated in integration tests).
    });
  });
}