packages/local_auth/test/local_auth_test.dart

// Copyright 2019 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'dart:async';

import 'package:flutter/services.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:local_auth/auth_strings.dart';
import 'package:local_auth/local_auth.dart';
import 'package:platform/platform.dart';

void main() {
  TestWidgetsFlutterBinding.ensureInitialized();

  group('LocalAuth', () {
    const MethodChannel channel = MethodChannel(
      'plugins.flutter.io/local_auth',
    );

    final List<MethodCall> log = <MethodCall>[];
    LocalAuthentication localAuthentication;

    setUp(() {
      channel.setMockMethodCallHandler((MethodCall methodCall) {
        log.add(methodCall);
        return Future<dynamic>.value(true);
      });
      localAuthentication = LocalAuthentication();
      log.clear();
    });

    test('authenticate with no args on Android.', () async {
      setMockPathProviderPlatform(FakePlatform(operatingSystem: 'android'));
      await localAuthentication.authenticateWithBiometrics(
          localizedReason: 'Needs secure');
      expect(
        log,
        <Matcher>[
          isMethodCall('authenticateWithBiometrics',
              arguments: <String, dynamic>{
                'localizedReason': 'Needs secure',
                'useErrorDialogs': true,
                'stickyAuth': false,
                'sensitiveTransaction': true,
              }..addAll(const AndroidAuthMessages().args)),
        ],
      );
    });

    test('authenticate with no args on iOS.', () async {
      setMockPathProviderPlatform(FakePlatform(operatingSystem: 'ios'));
      await localAuthentication.authenticateWithBiometrics(
          localizedReason: 'Needs secure');
      expect(
        log,
        <Matcher>[
          isMethodCall('authenticateWithBiometrics',
              arguments: <String, dynamic>{
                'localizedReason': 'Needs secure',
                'useErrorDialogs': true,
                'stickyAuth': false,
                'sensitiveTransaction': true,
              }..addAll(const IOSAuthMessages().args)),
        ],
      );
    });

    test('authenticate with no sensitive transaction.', () async {
      setMockPathProviderPlatform(FakePlatform(operatingSystem: 'android'));
      await localAuthentication.authenticateWithBiometrics(
        localizedReason: 'Insecure',
        sensitiveTransaction: false,
        useErrorDialogs: false,
      );
      expect(
        log,
        <Matcher>[
          isMethodCall('authenticateWithBiometrics',
              arguments: <String, dynamic>{
                'localizedReason': 'Insecure',
                'useErrorDialogs': false,
                'stickyAuth': false,
                'sensitiveTransaction': false,
              }..addAll(const AndroidAuthMessages().args)),
        ],
      );
    });
  });
}