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Buat business logic ping untuk memastikan hostname yang dimasukkan benar
Sekalian buat unit testnya.
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‎lib/feature/presentation/bloc/setup_credential/setup_credential_bloc.dart‎

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import 'dart:async';
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import 'package:bloc/bloc.dart';
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import 'package:dipantau_desktop_client/core/usecase/usecase.dart';
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import 'package:dipantau_desktop_client/core/util/helper.dart';
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import 'package:dipantau_desktop_client/feature/domain/usecase/ping/ping.dart';
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part 'setup_credential_event.dart';
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part 'setup_credential_state.dart';
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class SetupCredentialBloc extends Bloc<SetupCredentialEvent, SetupCredentialState> {
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final Helper helper;
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final Ping ping;
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SetupCredentialBloc({
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required this.helper,
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required this.ping,
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}) : super(InitialSetupCredentialState()) {
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on<PingSetupCredentialEvent>(_onPingSetupCredentialEvent);
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}
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FutureOr<void> _onPingSetupCredentialEvent(
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PingSetupCredentialEvent event,
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Emitter<SetupCredentialState> emit,
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) async {
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emit(LoadingSetupCredentialState());
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final result = await ping(NoParams());
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final response = result.response;
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final failure = result.failure;
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if (response != null) {
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emit(SuccessPingSetupCredentialState());
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return;
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}
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final errorMessage = helper.getErrorMessageFromFailure(failure);
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emit(FailureSetupCredentialState(errorMessage: errorMessage));
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}
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}

‎lib/feature/presentation/bloc/setup_credential/setup_credential_event.dart‎

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part of 'setup_credential_bloc.dart';
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abstract class SetupCredentialEvent {}
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class PingSetupCredentialEvent extends SetupCredentialEvent {}

‎lib/feature/presentation/bloc/setup_credential/setup_credential_state.dart‎

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part of 'setup_credential_bloc.dart';
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abstract class SetupCredentialState {}
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class InitialSetupCredentialState extends SetupCredentialState {}
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class LoadingSetupCredentialState extends SetupCredentialState {}
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class FailureSetupCredentialState extends SetupCredentialState {
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final String errorMessage;
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FailureSetupCredentialState({
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required this.errorMessage,
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});
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@override
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String toString() {
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return 'FailureSetupCredentialState{errorMessage: $errorMessage}';
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}
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}
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class SuccessPingSetupCredentialState extends SetupCredentialState {}

‎test/feature/presentation/bloc/setup_credential/setup_credential_bloc_test.dart‎

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import 'dart:convert';
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import 'package:bloc_test/bloc_test.dart';
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import 'package:dipantau_desktop_client/core/error/failure.dart';
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import 'package:dipantau_desktop_client/core/usecase/usecase.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/presentation/bloc/setup_credential/setup_credential_bloc.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 SetupCredentialBloc bloc;
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late MockHelper mockHelper;
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late MockPing mockPing;
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const errorMessage = 'testErrorMessage';
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setUp(() {
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mockHelper = MockHelper();
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mockPing = MockPing();
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bloc = SetupCredentialBloc(
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helper: mockHelper,
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ping: mockPing,
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);
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});
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test(
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'pastikan output dari initial state',
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() async {
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// assert
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expect(
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bloc.state,
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isA<InitialSetupCredentialState>(),
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);
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},
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);
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group('ping setup credential', () {
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final params = NoParams();
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final event = PingSetupCredentialEvent();
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blocTest(
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'pastikan emit [LoadingSetupCredentialState, SuccessPingSetupCredentialState] ketika terima event '
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'PingSetupCredentialEvent dengan proses berhasil',
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build: () {
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final response = 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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final result = (failure: null, response: response);
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when(mockPing(any)).thenAnswer((_) async => result);
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return bloc;
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},
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act: (SetupCredentialBloc bloc) {
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return bloc.add(event);
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},
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expect: () => [
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isA<LoadingSetupCredentialState>(),
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isA<SuccessPingSetupCredentialState>(),
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],
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verify: (_) {
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verify(mockPing(params));
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},
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);
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blocTest(
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'pastikan emit [LoadingSetupCredentialState, FailureSetupCredentialState] ketika terima event '
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'PingSetupCredentialEvent dengan proses gagal dari endpoint',
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build: () {
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final result = (failure: ServerFailure(errorMessage), response: null);
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when(mockPing(any)).thenAnswer((_) async => result);
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return bloc;
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},
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act: (SetupCredentialBloc bloc) {
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return bloc.add(event);
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},
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expect: () => [
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isA<LoadingSetupCredentialState>(),
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isA<FailureSetupCredentialState>(),
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],
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verify: (_) {
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verify(mockPing(params));
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},
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);
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blocTest(
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'pastikan emit [LoadingSetupCredentialState, FailureSetupCredentialState] ketika terima event '
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'PingSetupCredentialEvent dengan kondisi internet tidak terhubung ketika hit endpoint',
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build: () {
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final result = (failure: ConnectionFailure(), response: null);
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when(mockPing(any)).thenAnswer((_) async => result);
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return bloc;
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},
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act: (SetupCredentialBloc bloc) {
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return bloc.add(event);
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},
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expect: () => [
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isA<LoadingSetupCredentialState>(),
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isA<FailureSetupCredentialState>(),
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],
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verify: (_) {
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verify(mockPing(params));
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},
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);
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blocTest(
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'pastikan emit [LoadingSetupCredentialState, FailureSetupCredentialState] ketika terima event '
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'PingSetupCredentialEvent dengan proses gagal parsing respon JSON endpoint',
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build: () {
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final result = (failure: ParsingFailure(errorMessage), response: null);
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when(mockPing(any)).thenAnswer((_) async => result);
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return bloc;
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},
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act: (SetupCredentialBloc bloc) {
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return bloc.add(event);
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},
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expect: () => [
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isA<LoadingSetupCredentialState>(),
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isA<FailureSetupCredentialState>(),
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],
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verify: (_) {
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verify(mockPing(params));
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},
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);
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});
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}

‎test/feature/presentation/bloc/setup_credential/setup_credential_state_test.dart‎

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import 'package:dipantau_desktop_client/feature/presentation/bloc/setup_credential/setup_credential_bloc.dart';
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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group('FailureSetupCredentialState', () {
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final state = FailureSetupCredentialState(errorMessage: 'errorMessage');
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test(
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'pastikan output dari fungsi toString',
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() async {
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// assert
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expect(
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state.toString(),
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'FailureSetupCredentialState{errorMessage: ${state.errorMessage}}',
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);
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},
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);
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});
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}

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