chore: Halkyon Learn moves into apps/learn
Its server, client, app and curator, and the tools that write its assets (maps, Anki fixtures, icons), as they are; paths are fixed in the commits that follow. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>
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import 'package:flutter_test/flutter_test.dart';
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import 'package:halkyon_learn_flutter/src/feature/statistics/model/study_statistics.dart';
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import 'package:halkyon_learn_flutter/src/feature/study/model/rating.dart';
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import 'package:halkyon_learn_flutter/src/feature/study/model/review.dart';
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void main() {
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// Monday, 12 October 2026, in the afternoon, local time.
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final now = DateTime(2026, 10, 12, 15);
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var ids = 0;
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Review review(
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DateTime at, {
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Duration duration = const Duration(seconds: 20),
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Rating rating = Rating.good,
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StudyMode mode = StudyMode.review,
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}) => Review(
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id: 'review-${ids++}',
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cardId: 'card',
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rating: rating,
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reviewedAt: at.toUtc(),
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duration: duration,
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mode: mode,
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);
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test('counts at most a minute a card, cramming too, a fresh start '
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'not', () {
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final statistics = studyStatistics(
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[
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review(now, duration: const Duration(minutes: 45)),
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review(now, duration: const Duration(seconds: 30)),
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review(now, mode: StudyMode.cram),
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review(
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now,
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duration: const Duration(minutes: 5),
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mode: StudyMode.reset,
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),
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],
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now: now,
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span: StatisticsSpan.days,
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);
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expect(statistics.total, const Duration(seconds: 110));
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expect(statistics.periods.last.time, const Duration(seconds: 110));
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expect(statistics.periods.last.reviews, 3);
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expect(statistics.studied, true);
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});
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test('per day counts every day from the first studied to today; the '
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'record is the most in one day', () {
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final statistics = studyStatistics(
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[
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// Three days ago, 2 minutes; today, 1.
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for (var i = 0; i < 2; i++)
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review(
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now.subtract(const Duration(days: 3)),
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duration: const Duration(minutes: 1),
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),
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review(now, duration: const Duration(minutes: 1)),
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],
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now: now,
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span: StatisticsSpan.days,
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);
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expect(statistics.total, const Duration(minutes: 3));
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// Four days: three ago, two, one, today.
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expect(statistics.perDay, const Duration(seconds: 45));
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expect(statistics.record, const Duration(minutes: 2));
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});
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test('ten days, today last; ten weeks from Monday; twelve months', () {
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final days = studyStatistics([], now: now, span: StatisticsSpan.days);
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expect(days.periods, hasLength(10));
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expect(days.periods.first.start, DateTime(2026, 10, 3));
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expect(days.periods.last.start, DateTime(2026, 10, 12));
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expect(days.studied, false);
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final weeks = studyStatistics([], now: now, span: StatisticsSpan.weeks);
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expect(weeks.periods, hasLength(10));
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expect(weeks.periods.last.start, DateTime(2026, 10, 12));
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expect(weeks.periods.first.start, DateTime(2026, 8, 10));
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final months = studyStatistics([], now: now, span: StatisticsSpan.months);
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expect(months.periods, hasLength(12));
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expect(months.periods.first.start, DateTime(2025, 11));
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expect(months.periods.last.start, DateTime(2026, 10));
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});
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test("each period holds its reviews' time and ratings; older ones count "
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'in the totals only', () {
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final statistics = studyStatistics(
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[
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review(DateTime(2026, 10, 6, 9), rating: Rating.again),
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review(DateTime(2026, 10, 11, 23), rating: Rating.easy),
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review(DateTime(2026, 10, 12, 8), rating: Rating.easy),
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review(DateTime(2026, 7, 1, 8)),
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],
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now: now,
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span: StatisticsSpan.weeks,
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);
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final [...earlier, lastWeek, thisWeek] = statistics.periods;
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expect(thisWeek.ratings, {Rating.easy: 1});
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expect(lastWeek.ratings, {Rating.again: 1, Rating.easy: 1});
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expect(lastWeek.time, const Duration(seconds: 40));
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expect(earlier.every((period) => period.reviews == 0), true);
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expect(statistics.total, const Duration(seconds: 80));
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});
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}
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import 'package:clock/clock.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:halkyon_learn_flutter/src/core/content/rich_content.dart';
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import 'package:halkyon_learn_flutter/src/feature/card/data/card_repository.dart';
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import 'package:halkyon_learn_flutter/src/feature/card/model/card_content.dart';
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import 'package:halkyon_learn_flutter/src/feature/statistics/widget/bar_chart.dart';
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import 'package:halkyon_learn_flutter/src/feature/study/data/review_repository.dart';
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import 'package:halkyon_learn_flutter/src/feature/study/model/rating.dart';
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import 'package:halkyon_learn_flutter/src/feature/studyset/data/studyset_payload.dart';
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import 'package:halkyon_learn_flutter/src/feature/studyset/model/studyset_content.dart';
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import 'package:material_ui/material_ui.dart';
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import '../../../support/fake_card_gateway.dart';
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import '../../../support/fake_review_gateway.dart';
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import '../../../support/fake_studyset_gateway.dart';
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import '../../../support/pump_app.dart';
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import '../../../support/test_dependencies.dart';
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void main() {
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late FakeStudysetGateway studysets;
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late FakeCardGateway cardGateway;
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late FakeReviewGateway reviewGateway;
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setUp(() {
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studysets = FakeStudysetGateway()
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..receiveRemoteChange(
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'japanese',
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encodeStudysetPayload(StudysetContent.titled('Japanese')),
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);
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cardGateway = FakeCardGateway();
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reviewGateway = FakeReviewGateway();
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});
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/// A card of Japanese, rated with each of [ratings]: when, how, and how
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/// long it took.
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Future<void> studied(
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List<({Duration ago, Rating rating, Duration took})> ratings,
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) async {
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final cards = CardRepository(cardGateway);
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addTearDown(cards.dispose);
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final reviews = ReviewRepository(reviewGateway);
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addTearDown(reviews.dispose);
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final card = await cards.create(
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'japanese',
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CardContent(front: RichContent.plain('猫'), back: RichContent.empty()),
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);
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for (final (:ago, :rating, :took) in ratings) {
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await reviews.record(
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cardId: card,
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rating: rating,
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reviewedAt: clock.now().toUtc().subtract(ago),
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duration: took,
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);
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}
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}
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Future<void> showStatistics(WidgetTester tester, {double width = 400}) async {
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tester.view
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..physicalSize = Size(width, 1600)
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..devicePixelRatio = 1;
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addTearDown(tester.view.reset);
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await pumpApp(
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tester,
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testDependencies(
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studysetGateway: studysets,
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cardGateway: cardGateway,
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reviewGateway: reviewGateway,
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),
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);
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await openTab(tester, 'Profile');
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await tester.tap(find.widgetWithText(Tab, 'Statistics'));
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await tester.pumpAndSettle();
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// Worked out once the reviews stop changing for a moment.
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await tester.pump(const Duration(seconds: 1));
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await tester.pumpAndSettle();
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}
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testWidgets('the Profile tab has the statistics beside the profile: the '
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'time in all, per day and the most in a day, each card counted for '
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'at most a minute, and the ratings', (tester) async {
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// Today 2 min (one card left on the screen for ten), yesterday 30 s.
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await studied([
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(
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ago: Duration.zero,
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rating: Rating.easy,
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took: const Duration(minutes: 10),
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),
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(
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ago: Duration.zero,
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rating: Rating.good,
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took: const Duration(seconds: 60),
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),
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(
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ago: const Duration(days: 1),
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rating: Rating.again,
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took: const Duration(seconds: 30),
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),
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]);
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await showStatistics(tester);
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expect(find.text('In total'), findsOneWidget);
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// 2 min 30 s; 1 min 15 s a day over two days; 2 min today.
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expect(find.text('3 min'), findsOneWidget);
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expect(find.text('1 min'), findsOneWidget);
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expect(find.text('Today · 2 min'), findsOneWidget);
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expect(find.text('Today · 2 cards rated'), findsOneWidget);
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expect(find.text('Perfect 1'), findsOneWidget);
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expect(find.text('Bad 0'), findsOneWidget);
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expect(find.byType(BarChart), findsNWidgets(2));
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});
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testWidgets('a tap on a bar says what it holds; Weeks shows weeks', (
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tester,
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) async {
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await studied([
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(
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ago: const Duration(days: 1),
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rating: Rating.again,
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took: const Duration(seconds: 30),
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),
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]);
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await showStatistics(tester);
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expect(find.text('Today · No cards rated'), findsOneWidget);
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// Yesterday's bar: the second from the end.
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final chart = tester.getRect(find.byType(BarChart).last);
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await tester.tapAt(
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Offset(chart.right - (chart.width - 24) / 10 * 1.5, chart.center.dy),
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);
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await tester.pumpAndSettle();
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expect(find.textContaining(' · 1 card rated'), findsOneWidget);
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expect(find.text('Bad 1'), findsOneWidget);
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await tester.tap(find.text('Weeks'));
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await tester.pumpAndSettle();
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expect(find.textContaining('Week of '), findsNWidgets(2));
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});
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testWidgets('from expanded windows on, the two charts stand side by side, '
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'as tall as each other', (tester) async {
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await studied([
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(
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ago: Duration.zero,
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rating: Rating.good,
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took: const Duration(seconds: 20),
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),
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]);
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await showStatistics(tester, width: 1200);
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final cards = find.ancestor(
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of: find.byType(BarChart),
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matching: find.byType(Card),
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);
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final [first, second] = [
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for (final element in cards.evaluate())
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tester.getRect(find.byElementPredicate((e) => e == element)),
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];
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expect(first.top, second.top);
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expect(first.height, second.height);
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expect(first.right, lessThan(second.left));
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});
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testWidgets('says so while nothing was studied', (tester) async {
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await showStatistics(tester);
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expect(find.textContaining('Nothing studied yet'), findsOneWidget);
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expect(find.byType(BarChart), findsNothing);
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});
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}
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