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Buat implement function endpoint ping
Sekalian buat unit testnya.
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‎lib/feature/data/repository/general/general_repository_impl.dart‎

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import 'package:dio/dio.dart';
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import 'package:dipantau_desktop_client/core/error/failure.dart';
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import 'package:dipantau_desktop_client/core/network/network_info.dart';
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import 'package:dipantau_desktop_client/feature/data/datasource/general/general_remote_data_source.dart';
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import 'package:dipantau_desktop_client/feature/data/model/general/general_response.dart';
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import 'package:dipantau_desktop_client/feature/domain/repository/general/general_repository.dart';
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class GeneralRepositoryImpl implements GeneralRepository {
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final GeneralRemoteDataSource remoteDataSource;
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final NetworkInfo networkInfo;
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GeneralRepositoryImpl({
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required this.remoteDataSource,
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required this.networkInfo,
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});
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String getErrorMessageFromEndpoint(dynamic dynamicErrorMessage, String httpErrorMessage, int? statusCode) {
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if (dynamicErrorMessage is Map && dynamicErrorMessage.containsKey('message')) {
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return '$statusCode ${dynamicErrorMessage['message']}';
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} else if (dynamicErrorMessage is String) {
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return httpErrorMessage;
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} else {
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return httpErrorMessage;
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}
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}
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@override
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Future<({Failure? failure, GeneralResponse? response})> ping() async {
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Failure? failure;
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GeneralResponse? response;
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final isConnected = await networkInfo.isConnected;
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if (isConnected) {
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try {
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response = await remoteDataSource.ping();
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} on DioException catch (error) {
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final message = error.message ?? error.toString();
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if (error.response == null) {
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failure = ServerFailure(message);
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} else {
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final errorMessage = getErrorMessageFromEndpoint(
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error.response?.data,
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message,
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error.response?.statusCode,
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);
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failure = ServerFailure(errorMessage);
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}
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} on TypeError catch (error) {
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final errorMessage = error.toString();
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failure = ParsingFailure(errorMessage);
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}
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} else {
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failure = ConnectionFailure();
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}
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return (failure: failure, response: response);
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}
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}

‎lib/feature/domain/repository/general/general_repository.dart‎

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import 'package:dipantau_desktop_client/core/error/failure.dart';
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import 'package:dipantau_desktop_client/feature/data/model/general/general_response.dart';
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abstract class GeneralRepository {
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Future<({Failure? failure, GeneralResponse? response})> ping();
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}

‎test/feature/data/repository/general/general_repository_impl_test.dart‎

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import 'dart:convert';
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import 'package:dio/dio.dart';
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import 'package:dipantau_desktop_client/core/error/failure.dart';
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import 'package:dipantau_desktop_client/feature/data/model/general/general_response.dart';
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import 'package:dipantau_desktop_client/feature/data/repository/general/general_repository_impl.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:mockito/mockito.dart';
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import '../../../../fixture/fixture_reader.dart';
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import '../../../../helper/mock_helper.mocks.dart';
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void main() {
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late GeneralRepositoryImpl repository;
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late MockGeneralRemoteDataSource mockRemoteDataSource;
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late MockNetworkInfo mockNetworkInfo;
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setUp(() {
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mockRemoteDataSource = MockGeneralRemoteDataSource();
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mockNetworkInfo = MockNetworkInfo();
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repository = GeneralRepositoryImpl(
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remoteDataSource: mockRemoteDataSource,
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networkInfo: mockNetworkInfo,
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);
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});
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final tRequestOptions = RequestOptions(path: '');
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void setUpMockNetworkConnected() {
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when(mockNetworkInfo.isConnected).thenAnswer((_) async => true);
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}
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void setUpMockNetworkDisconnected() {
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when(mockNetworkInfo.isConnected).thenAnswer((_) async => false);
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}
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void testDisconnected(Function endpointInvoke) {
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test(
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'pastikan mengembalikan objek ConnectionFailure ketika device tidak terhubung ke internet',
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() async {
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// arrange
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setUpMockNetworkDisconnected();
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// act
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final result = await endpointInvoke.call();
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// assert
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verify(mockNetworkInfo.isConnected);
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expect(result.failure, ConnectionFailure());
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},
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);
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}
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void testServerFailureString(Function whenInvoke, Function actInvoke, Function verifyInvoke) {
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test(
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'pastikan mengembalikan objek ServerFailure ketika repository menerima respon kegagalan '
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'dari endpoint dengan respon data html atau string',
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() async {
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// arrange
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setUpMockNetworkConnected();
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when(whenInvoke.call()).thenThrow(
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DioException(
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requestOptions: tRequestOptions,
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message: 'testError',
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response: Response(
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requestOptions: tRequestOptions,
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data: 'testDataError',
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statusCode: 400,
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),
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),
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);
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// act
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final result = await actInvoke.call();
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// assert
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verify(verifyInvoke.call());
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expect(result.failure, ServerFailure('testError'));
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},
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);
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}
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void testParsingFailure(Function whenInvoke, Function actInvoke, Function verifyInvoke) {
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test(
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'pastikan mengembalikan objek ParsingFailure ketika RemoteDataSource menerima respon kegagalan '
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'dari endpoint',
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() async {
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// arrange
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setUpMockNetworkConnected();
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when(whenInvoke.call()).thenThrow(TypeError());
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// act
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final result = await actInvoke.call();
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// assert
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verify(verifyInvoke.call());
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expect(result.failure, ParsingFailure(TypeError().toString()));
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},
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);
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}
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group('ping', () {
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final tResponse = GeneralResponse.fromJson(
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json.decode(
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fixture('general_response.json'),
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),
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);
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test(
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'pastikan mengembalikan objek model GeneralResponse ketika RemoteDataSource berhasil menerima '
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'respon sukses dari endpoint',
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() async {
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// arrange
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setUpMockNetworkConnected();
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when(mockRemoteDataSource.ping()).thenAnswer((_) async => tResponse);
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// act
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final result = await repository.ping();
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// assert
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verify(mockRemoteDataSource.ping());
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expect(result.response, tResponse);
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},
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);
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test(
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'pastikan mengembalikan objek ServerFailure ketika RemoteDataSource berhasil menerima '
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'respon timeout dari endpoint',
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() async {
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// arrange
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setUpMockNetworkConnected();
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when(mockRemoteDataSource.ping())
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.thenThrow(DioException(requestOptions: tRequestOptions, message: 'testError'));
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// act
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final result = await repository.ping();
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// assert
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verify(mockRemoteDataSource.ping());
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expect(result.failure, ServerFailure('testError'));
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},
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);
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test(
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'pastikan mengembalikan objek ServerFailure ketika RemoteDataSource menerima respon kegagaln '
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'dari endpoint',
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() async {
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// arrange
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setUpMockNetworkConnected();
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when(mockRemoteDataSource.ping()).thenThrow(
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DioException(
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requestOptions: tRequestOptions,
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message: 'testError',
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response: Response(
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requestOptions: tRequestOptions,
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data: {
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'title': 'testTitleError',
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'message': 'testMessageError',
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},
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statusCode: 400,
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),
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),
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);
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// act
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final result = await repository.ping();
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// assert
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verify(mockRemoteDataSource.ping());
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expect(result.failure, ServerFailure('400 testMessageError'));
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},
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);
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testServerFailureString(
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() => mockRemoteDataSource.ping(),
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() => repository.ping(),
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() => mockRemoteDataSource.ping(),
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);
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testParsingFailure(
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() => mockRemoteDataSource.ping(),
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() => repository.ping(),
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() => mockRemoteDataSource.ping(),
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);
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testDisconnected(() => repository.ping());
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});
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}

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