mirror of https://github.com/flutter/pinball.git
pull/70/head
Erick Zanardo
4 years ago
commit
9850f263ec
@ -0,0 +1,64 @@
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import 'dart:async';
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import 'package:bloc/bloc.dart';
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import 'package:equatable/equatable.dart';
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import 'package:leaderboard_repository/leaderboard_repository.dart';
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part 'leaderboard_event.dart';
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part 'leaderboard_state.dart';
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/// {@template leaderboard_bloc}
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/// Manages leaderboard events.
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///
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/// Uses a [LeaderboardRepository] to request and update players participations.
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/// {@endtemplate}
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class LeaderboardBloc extends Bloc<LeaderboardEvent, LeaderboardState> {
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/// {@macro leaderboard_bloc}
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LeaderboardBloc(this._leaderboardRepository)
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: super(const LeaderboardState.initial()) {
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on<Top10Fetched>(_onTop10Fetched);
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on<LeaderboardEntryAdded>(_onLeaderboardEntryAdded);
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}
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final LeaderboardRepository _leaderboardRepository;
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Future<void> _onTop10Fetched(
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Top10Fetched event,
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Emitter<LeaderboardState> emit,
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) async {
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emit(state.copyWith(status: LeaderboardStatus.loading));
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try {
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final top10Leaderboard =
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await _leaderboardRepository.fetchTop10Leaderboard();
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emit(
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state.copyWith(
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status: LeaderboardStatus.success,
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leaderboard: top10Leaderboard,
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),
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);
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} catch (error) {
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emit(state.copyWith(status: LeaderboardStatus.error));
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addError(error);
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}
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}
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Future<void> _onLeaderboardEntryAdded(
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LeaderboardEntryAdded event,
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Emitter<LeaderboardState> emit,
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) async {
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emit(state.copyWith(status: LeaderboardStatus.loading));
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try {
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final ranking =
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await _leaderboardRepository.addLeaderboardEntry(event.entry);
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emit(
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state.copyWith(
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status: LeaderboardStatus.success,
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ranking: ranking,
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),
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);
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} catch (error) {
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emit(state.copyWith(status: LeaderboardStatus.error));
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addError(error);
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}
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}
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}
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@ -0,0 +1,36 @@
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part of 'leaderboard_bloc.dart';
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/// {@template leaderboard_event}
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/// Represents the events available for [LeaderboardBloc].
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/// {endtemplate}
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abstract class LeaderboardEvent extends Equatable {
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/// {@macro leaderboard_event}
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const LeaderboardEvent();
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}
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/// {@template top_10_fetched}
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/// Request the top 10 [LeaderboardEntry]s.
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/// {endtemplate}
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class Top10Fetched extends LeaderboardEvent {
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/// {@macro top_10_fetched}
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const Top10Fetched();
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@override
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List<Object?> get props => [];
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}
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/// {@template leaderboard_entry_added}
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/// Writes a new [LeaderboardEntry].
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///
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/// Should be added when a player finishes a game.
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/// {endtemplate}
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class LeaderboardEntryAdded extends LeaderboardEvent {
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/// {@macro leaderboard_entry_added}
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const LeaderboardEntryAdded({required this.entry});
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/// [LeaderboardEntry] to be written to the remote storage.
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final LeaderboardEntry entry;
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@override
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List<Object?> get props => [entry];
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}
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@ -0,0 +1,59 @@
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// ignore_for_file: public_member_api_docs
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part of 'leaderboard_bloc.dart';
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/// Defines the request status.
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enum LeaderboardStatus {
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/// Request is being loaded.
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loading,
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/// Request was processed successfully and received a valid response.
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success,
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/// Request was processed unsuccessfully and received an error.
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error,
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}
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/// {@template leaderboard_state}
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/// Represents the state of the leaderboard.
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/// {@endtemplate}
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class LeaderboardState extends Equatable {
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/// {@macro leaderboard_state}
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const LeaderboardState({
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required this.status,
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required this.ranking,
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required this.leaderboard,
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});
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const LeaderboardState.initial()
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: status = LeaderboardStatus.loading,
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ranking = const LeaderboardRanking(
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ranking: 0,
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outOf: 0,
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),
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leaderboard = const [];
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/// The current [LeaderboardStatus] of the state.
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final LeaderboardStatus status;
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/// Rank of the current player.
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final LeaderboardRanking ranking;
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/// List of top-ranked players.
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final List<LeaderboardEntry> leaderboard;
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@override
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List<Object> get props => [status, ranking, leaderboard];
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LeaderboardState copyWith({
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LeaderboardStatus? status,
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LeaderboardRanking? ranking,
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List<LeaderboardEntry>? leaderboard,
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}) {
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return LeaderboardState(
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status: status ?? this.status,
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ranking: ranking ?? this.ranking,
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leaderboard: leaderboard ?? this.leaderboard,
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);
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}
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}
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@ -0,0 +1 @@
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export 'bloc/leaderboard_bloc.dart';
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@ -0,0 +1,166 @@
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// ignore_for_file: prefer_const_constructors
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import 'package:bloc_test/bloc_test.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:leaderboard_repository/leaderboard_repository.dart';
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import 'package:mocktail/mocktail.dart';
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import 'package:pinball/leaderboard/leaderboard.dart';
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class MockLeaderboardRepository extends Mock implements LeaderboardRepository {}
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void main() {
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group('LeaderboardBloc', () {
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late LeaderboardRepository leaderboardRepository;
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setUp(() {
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leaderboardRepository = MockLeaderboardRepository();
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});
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test('initial state has state loading no ranking and empty leaderboard',
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() {
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final bloc = LeaderboardBloc(leaderboardRepository);
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expect(bloc.state.status, equals(LeaderboardStatus.loading));
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expect(bloc.state.ranking.ranking, equals(0));
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expect(bloc.state.ranking.outOf, equals(0));
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expect(bloc.state.leaderboard.isEmpty, isTrue);
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});
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group('Top10Fetched', () {
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const top10Scores = [
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2500,
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2200,
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2200,
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2000,
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1800,
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1400,
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1300,
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1000,
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600,
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300,
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100,
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];
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final top10Leaderboard = top10Scores
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.map(
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(score) => LeaderboardEntry(
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playerInitials: 'user$score',
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score: score,
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character: CharacterType.dash,
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),
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)
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.toList();
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blocTest<LeaderboardBloc, LeaderboardState>(
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'emits [loading, success] statuses '
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'when fetchTop10Leaderboard succeeds',
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setUp: () {
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when(() => leaderboardRepository.fetchTop10Leaderboard()).thenAnswer(
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(_) async => top10Leaderboard,
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);
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},
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build: () => LeaderboardBloc(leaderboardRepository),
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act: (bloc) => bloc.add(Top10Fetched()),
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expect: () => [
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LeaderboardState.initial(),
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isA<LeaderboardState>()
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..having(
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(element) => element.status,
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'status',
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equals(LeaderboardStatus.success),
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)
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..having(
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(element) => element.leaderboard.length,
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'leaderboard',
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equals(top10Leaderboard.length),
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)
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],
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verify: (_) =>
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verify(() => leaderboardRepository.fetchTop10Leaderboard())
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.called(1),
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);
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blocTest<LeaderboardBloc, LeaderboardState>(
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'emits [loading, error] statuses '
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'when fetchTop10Leaderboard fails',
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setUp: () {
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when(() => leaderboardRepository.fetchTop10Leaderboard()).thenThrow(
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Exception(),
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);
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},
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build: () => LeaderboardBloc(leaderboardRepository),
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act: (bloc) => bloc.add(Top10Fetched()),
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expect: () => <LeaderboardState>[
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LeaderboardState.initial(),
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LeaderboardState.initial().copyWith(status: LeaderboardStatus.error),
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],
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verify: (_) =>
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verify(() => leaderboardRepository.fetchTop10Leaderboard())
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.called(1),
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errors: () => [isA<Exception>()],
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);
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});
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group('LeaderboardEntryAdded', () {
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final leaderboardEntry = LeaderboardEntry(
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playerInitials: 'ABC',
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score: 1500,
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character: CharacterType.dash,
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);
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final ranking = LeaderboardRanking(ranking: 3, outOf: 4);
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blocTest<LeaderboardBloc, LeaderboardState>(
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'emits [loading, success] statuses '
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'when addLeaderboardEntry succeeds',
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setUp: () {
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when(
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() => leaderboardRepository.addLeaderboardEntry(leaderboardEntry),
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).thenAnswer(
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(_) async => ranking,
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);
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},
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build: () => LeaderboardBloc(leaderboardRepository),
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act: (bloc) => bloc.add(LeaderboardEntryAdded(entry: leaderboardEntry)),
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expect: () => [
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LeaderboardState.initial(),
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isA<LeaderboardState>()
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..having(
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(element) => element.status,
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'status',
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equals(LeaderboardStatus.success),
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)
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..having(
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(element) => element.ranking,
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'ranking',
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equals(ranking),
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)
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],
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verify: (_) => verify(
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() => leaderboardRepository.addLeaderboardEntry(leaderboardEntry),
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).called(1),
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);
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blocTest<LeaderboardBloc, LeaderboardState>(
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'emits [loading, error] statuses '
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'when addLeaderboardEntry fails',
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setUp: () {
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when(
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() => leaderboardRepository.addLeaderboardEntry(leaderboardEntry),
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).thenThrow(
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Exception(),
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);
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},
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build: () => LeaderboardBloc(leaderboardRepository),
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act: (bloc) => bloc.add(LeaderboardEntryAdded(entry: leaderboardEntry)),
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expect: () => <LeaderboardState>[
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LeaderboardState.initial(),
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LeaderboardState.initial().copyWith(status: LeaderboardStatus.error),
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],
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verify: (_) => verify(
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() => leaderboardRepository.addLeaderboardEntry(leaderboardEntry),
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).called(1),
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errors: () => [isA<Exception>()],
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);
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});
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});
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}
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@ -0,0 +1,41 @@
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// ignore_for_file: prefer_const_constructors
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import 'package:flutter_test/flutter_test.dart';
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import 'package:leaderboard_repository/leaderboard_repository.dart';
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import 'package:pinball/leaderboard/leaderboard.dart';
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void main() {
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group('GameEvent', () {
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group('Top10Fetched', () {
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test('can be instantiated', () {
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expect(const Top10Fetched(), isNotNull);
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});
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test('supports value equality', () {
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expect(
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Top10Fetched(),
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equals(const Top10Fetched()),
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);
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});
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});
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group('LeaderboardEntryAdded', () {
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const leaderboardEntry = LeaderboardEntry(
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playerInitials: 'ABC',
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score: 1500,
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character: CharacterType.dash,
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);
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test('can be instantiated', () {
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expect(const LeaderboardEntryAdded(entry: leaderboardEntry), isNotNull);
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});
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test('supports value equality', () {
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expect(
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LeaderboardEntryAdded(entry: leaderboardEntry),
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equals(const LeaderboardEntryAdded(entry: leaderboardEntry)),
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);
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});
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});
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});
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}
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@ -0,0 +1,70 @@
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// ignore_for_file: prefer_const_constructors
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import 'package:flutter_test/flutter_test.dart';
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import 'package:leaderboard_repository/leaderboard_repository.dart';
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import 'package:pinball/leaderboard/leaderboard.dart';
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void main() {
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group('LeaderboardState', () {
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test('supports value equality', () {
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expect(
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LeaderboardState.initial(),
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equals(
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LeaderboardState.initial(),
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),
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);
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});
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group('constructor', () {
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test('can be instantiated', () {
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expect(
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LeaderboardState.initial(),
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isNotNull,
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);
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});
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});
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group('copyWith', () {
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const leaderboardEntry = LeaderboardEntry(
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playerInitials: 'ABC',
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score: 1500,
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character: CharacterType.dash,
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);
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test(
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'copies correctly '
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'when no argument specified',
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() {
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const leaderboardState = LeaderboardState.initial();
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expect(
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leaderboardState.copyWith(),
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equals(leaderboardState),
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);
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},
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);
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test(
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'copies correctly '
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'when all arguments specified',
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() {
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const leaderboardState = LeaderboardState.initial();
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final otherLeaderboardState = LeaderboardState(
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status: LeaderboardStatus.success,
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ranking: LeaderboardRanking(ranking: 0, outOf: 0),
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leaderboard: const [leaderboardEntry],
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);
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expect(leaderboardState, isNot(equals(otherLeaderboardState)));
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expect(
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leaderboardState.copyWith(
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status: otherLeaderboardState.status,
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ranking: otherLeaderboardState.ranking,
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leaderboard: otherLeaderboardState.leaderboard,
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),
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equals(otherLeaderboardState),
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);
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},
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);
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});
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});
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}
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Reference in new issue