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| 1 | +// Copyright 2025 Google LLC |
| 2 | +// |
| 3 | +// Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | +// you may not use this file except in compliance with the License. |
| 5 | +// You may obtain a copy of the License at |
| 6 | +// |
| 7 | +// http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | +// |
| 9 | +// Unless required by applicable law or agreed to in writing, software |
| 10 | +// distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | +// See the License for the specific language governing permissions and |
| 13 | +// limitations under the License. |
| 14 | +//import 'dart:'; |
| 15 | +import 'package:firebase_app_check/firebase_app_check.dart'; |
| 16 | +import 'package:firebase_auth/firebase_auth.dart'; |
| 17 | +import 'package:firebase_core/firebase_core.dart'; |
| 18 | +import 'package:firebase_vertexai/src/base_model.dart'; |
| 19 | +import 'package:firebase_vertexai/src/client.dart'; |
| 20 | +import 'package:flutter_test/flutter_test.dart'; |
| 21 | +import 'package:mockito/mockito.dart'; |
| 22 | + |
| 23 | +// Mock FirebaseApp |
| 24 | +// ignore: avoid_implementing_value_types |
| 25 | +class MockFirebaseApp extends Mock implements FirebaseApp { |
| 26 | + @override |
| 27 | + FirebaseOptions get options => MockFirebaseOptions(); |
| 28 | + |
| 29 | + @override |
| 30 | + bool get isAutomaticDataCollectionEnabled => true; |
| 31 | +} |
| 32 | + |
| 33 | +// Mock FirebaseOptions |
| 34 | +// ignore: must_be_immutable, avoid_implementing_value_types |
| 35 | +class MockFirebaseOptions extends Mock implements FirebaseOptions { |
| 36 | + @override |
| 37 | + String get projectId => 'test-project'; |
| 38 | + |
| 39 | + @override |
| 40 | + String get appId => 'test-app-id'; |
| 41 | +} |
| 42 | + |
| 43 | +// Mock Firebase App Check |
| 44 | +class MockFirebaseAppCheck extends Mock implements FirebaseAppCheck { |
| 45 | + @override |
| 46 | + Future<String?> getToken([bool? forceRefresh = false]) async => |
| 47 | + super.noSuchMethod(Invocation.method(#getToken, [forceRefresh])); |
| 48 | +} |
| 49 | + |
| 50 | +// Mock Firebase Auth |
| 51 | +class MockFirebaseAuth extends Mock implements FirebaseAuth { |
| 52 | + @override |
| 53 | + User? get currentUser => super.noSuchMethod(Invocation.getter(#currentUser)); |
| 54 | +} |
| 55 | + |
| 56 | +// Mock Firebase User |
| 57 | +class MockUser extends Mock implements User { |
| 58 | + @override |
| 59 | + Future<String?> getIdToken([bool? forceRefresh = false]) async => |
| 60 | + super.noSuchMethod(Invocation.method(#getIdToken, [forceRefresh])); |
| 61 | +} |
| 62 | + |
| 63 | +class MockApiClient extends Mock implements ApiClient { |
| 64 | + @override |
| 65 | + Future<Map<String, Object?>> makeRequest( |
| 66 | + Uri uri, Map<String, Object?> params) async { |
| 67 | + // Simulate a successful API response |
| 68 | + return {'mockResponse': 'success'}; |
| 69 | + } |
| 70 | +} |
| 71 | + |
| 72 | +// A concrete subclass of BaseModel for testing purposes |
| 73 | +class TestBaseModel extends BaseModel { |
| 74 | + TestBaseModel({ |
| 75 | + required String model, |
| 76 | + required String location, |
| 77 | + required FirebaseApp app, |
| 78 | + }) : super(model: model, location: location, app: app); |
| 79 | +} |
| 80 | + |
| 81 | +class TestApiClientModel extends BaseApiClientModel { |
| 82 | + TestApiClientModel({ |
| 83 | + required super.model, |
| 84 | + required super.location, |
| 85 | + required super.app, |
| 86 | + required ApiClient client, |
| 87 | + }) : super(client: client); |
| 88 | +} |
| 89 | + |
| 90 | +void main() { |
| 91 | + group('BaseModel', () { |
| 92 | + test('normalizeModelName returns correct prefix and name for model code', |
| 93 | + () { |
| 94 | + final result = BaseModel.normalizeModelName('models/my-model'); |
| 95 | + expect(result.prefix, 'models'); |
| 96 | + expect(result.name, 'my-model'); |
| 97 | + }); |
| 98 | + |
| 99 | + test( |
| 100 | + 'normalizeModelName returns correct prefix and name for user-friendly name', |
| 101 | + () { |
| 102 | + final result = BaseModel.normalizeModelName('my-model'); |
| 103 | + expect(result.prefix, 'models'); |
| 104 | + expect(result.name, 'my-model'); |
| 105 | + }); |
| 106 | + |
| 107 | + test('taskUri constructs the correct URI for a task', () { |
| 108 | + final mockApp = MockFirebaseApp(); |
| 109 | + final model = TestBaseModel( |
| 110 | + model: 'my-model', location: 'us-central1', app: mockApp); |
| 111 | + final taskUri = model.taskUri(Task.generateContent); |
| 112 | + expect(taskUri.toString(), |
| 113 | + 'https://firebasevertexai.googleapis.com/v1beta/projects/test-project/locations/us-central1/publishers/google/models/my-model:generateContent'); |
| 114 | + }); |
| 115 | + |
| 116 | + test('taskUri constructs the correct URI for a task with model code', () { |
| 117 | + final mockApp = MockFirebaseApp(); |
| 118 | + final model = TestBaseModel( |
| 119 | + model: 'models/my-model', location: 'us-central1', app: mockApp); |
| 120 | + final taskUri = model.taskUri(Task.countTokens); |
| 121 | + expect(taskUri.toString(), |
| 122 | + 'https://firebasevertexai.googleapis.com/v1beta/projects/test-project/locations/us-central1/publishers/google/models/my-model:countTokens'); |
| 123 | + }); |
| 124 | + |
| 125 | + test('firebaseTokens returns a function that generates headers', () async { |
| 126 | + final tokenFunction = BaseModel.firebaseTokens(null, null, null); |
| 127 | + final headers = await tokenFunction(); |
| 128 | + expect(headers['x-goog-api-client'], contains('gl-dart')); |
| 129 | + expect(headers['x-goog-api-client'], contains('fire')); |
| 130 | + expect(headers.length, 1); |
| 131 | + }); |
| 132 | + |
| 133 | + test('firebaseTokens includes App Check token if available', () async { |
| 134 | + final mockAppCheck = MockFirebaseAppCheck(); |
| 135 | + when(mockAppCheck.getToken()) |
| 136 | + .thenAnswer((_) async => 'test-app-check-token'); |
| 137 | + final tokenFunction = BaseModel.firebaseTokens(mockAppCheck, null, null); |
| 138 | + final headers = await tokenFunction(); |
| 139 | + expect(headers['X-Firebase-AppCheck'], 'test-app-check-token'); |
| 140 | + expect(headers['x-goog-api-client'], contains('gl-dart')); |
| 141 | + expect(headers['x-goog-api-client'], contains('fire')); |
| 142 | + expect(headers.length, 2); |
| 143 | + }); |
| 144 | + |
| 145 | + test('firebaseTokens includes Auth ID token if available', () async { |
| 146 | + final mockAuth = MockFirebaseAuth(); |
| 147 | + final mockUser = MockUser(); |
| 148 | + when(mockUser.getIdToken()).thenAnswer((_) async => 'test-id-token'); |
| 149 | + when(mockAuth.currentUser).thenReturn(mockUser); |
| 150 | + final tokenFunction = BaseModel.firebaseTokens(null, mockAuth, null); |
| 151 | + final headers = await tokenFunction(); |
| 152 | + expect(headers['Authorization'], 'Firebase test-id-token'); |
| 153 | + expect(headers['x-goog-api-client'], contains('gl-dart')); |
| 154 | + expect(headers['x-goog-api-client'], contains('fire')); |
| 155 | + expect(headers.length, 2); |
| 156 | + }); |
| 157 | + |
| 158 | + test( |
| 159 | + 'firebaseTokens includes App ID if automatic data collection is enabled', |
| 160 | + () async { |
| 161 | + final mockApp = MockFirebaseApp(); |
| 162 | + |
| 163 | + final tokenFunction = BaseModel.firebaseTokens(null, null, mockApp); |
| 164 | + final headers = await tokenFunction(); |
| 165 | + expect(headers['X-Firebase-AppId'], 'test-app-id'); |
| 166 | + expect(headers['x-goog-api-client'], contains('gl-dart')); |
| 167 | + expect(headers['x-goog-api-client'], contains('fire')); |
| 168 | + expect(headers.length, 2); |
| 169 | + }); |
| 170 | + |
| 171 | + test('firebaseTokens includes all tokens if available', () async { |
| 172 | + final mockAppCheck = MockFirebaseAppCheck(); |
| 173 | + when(mockAppCheck.getToken()) |
| 174 | + .thenAnswer((_) async => 'test-app-check-token'); |
| 175 | + final mockAuth = MockFirebaseAuth(); |
| 176 | + final mockUser = MockUser(); |
| 177 | + when(mockUser.getIdToken()).thenAnswer((_) async => 'test-id-token'); |
| 178 | + when(mockAuth.currentUser).thenReturn(mockUser); |
| 179 | + final mockApp = MockFirebaseApp(); |
| 180 | + |
| 181 | + final tokenFunction = |
| 182 | + BaseModel.firebaseTokens(mockAppCheck, mockAuth, mockApp); |
| 183 | + final headers = await tokenFunction(); |
| 184 | + expect(headers['X-Firebase-AppCheck'], 'test-app-check-token'); |
| 185 | + expect(headers['Authorization'], 'Firebase test-id-token'); |
| 186 | + expect(headers['X-Firebase-AppId'], 'test-app-id'); |
| 187 | + expect(headers['x-goog-api-client'], contains('gl-dart')); |
| 188 | + expect(headers['x-goog-api-client'], contains('fire')); |
| 189 | + expect(headers.length, 4); |
| 190 | + }); |
| 191 | + }); |
| 192 | + |
| 193 | + group('BaseApiClientModel', () { |
| 194 | + test('makeRequest returns the parsed response', () async { |
| 195 | + final mockApp = MockFirebaseApp(); |
| 196 | + final mockClient = MockApiClient(); |
| 197 | + final model = TestApiClientModel( |
| 198 | + model: 'test-model', |
| 199 | + location: 'us-central1', |
| 200 | + app: mockApp, |
| 201 | + client: mockClient); |
| 202 | + final params = {'input': 'test'}; |
| 203 | + const task = Task.generateContent; |
| 204 | + |
| 205 | + final response = await model.makeRequest( |
| 206 | + task, params, (data) => data['mockResponse']! as String); |
| 207 | + expect(response, 'success'); |
| 208 | + }); |
| 209 | + |
| 210 | + test('client getter returns the injected ApiClient', () { |
| 211 | + final mockApp = MockFirebaseApp(); |
| 212 | + final mockClient = MockApiClient(); |
| 213 | + final model = TestApiClientModel( |
| 214 | + model: 'test-model', |
| 215 | + location: 'us-central1', |
| 216 | + app: mockApp, |
| 217 | + client: mockClient); |
| 218 | + expect(model.client, mockClient); |
| 219 | + }); |
| 220 | + }); |
| 221 | +} |
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