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tests: add widget tests

main
daniel-michel 2023-11-16 15:07:33 +01:00
parent c0bd61db05
commit 7a611d4c4f
4 changed files with 185 additions and 0 deletions
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25
test/view/home_page_test.dart 100644
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import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:release_schedule/api/movie_api.dart';
import 'package:release_schedule/main.dart';
import 'package:release_schedule/model/local_movie_storage.dart';
import 'package:release_schedule/model/movie_manager.dart';
import 'package:release_schedule/view/movie_manager_list.dart';
void main() {
group('HomePage', () {
testWidgets('displays title', (WidgetTester tester) async {
MovieManager movieManager = MovieManager(MovieApi(), LocalMovieStorage());
await tester.pumpWidget(MaterialApp(home: HomePage(movieManager)));
expect(find.text('Release Schedule'), findsOneWidget);
});
testWidgets('displays list of releases', (WidgetTester tester) async {
MovieManager movieManager = MovieManager(MovieApi(), LocalMovieStorage());
await tester.pumpWidget(MaterialApp(home: HomePage(movieManager)));
expect(find.byType(MovieManagerList), findsOneWidget);
});
});
}

62
test/view/movie_item_test.dart 100644
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import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:release_schedule/model/date_format.dart';
import 'package:release_schedule/model/movie.dart';
import 'package:release_schedule/view/movie_item.dart';
void main() {
testWidgets('MovieItem displays movie data', (WidgetTester tester) async {
final movie = MovieData(
'Test Movie',
DateWithPrecisionAndCountry(
DateTime(2023, 1, 1), DatePrecision.day, 'US'),
);
movie.setDetails(
genres: ['Action', 'Adventure'],
);
await tester.pumpWidget(
MaterialApp(
home: Scaffold(
body: MovieItem(movie),
),
),
);
expect(find.text('Test Movie'), findsOneWidget);
final formattedDate = movie.releaseDate.toString();
expect(find.textContaining(formattedDate), findsOneWidget);
expect(find.textContaining('Action, Adventure'), findsOneWidget);
});
testWidgets('should update when the movie is modified', (tester) async {
final movie = MovieData(
'Test Movie',
DateWithPrecisionAndCountry(
DateTime(2023, 1, 1), DatePrecision.day, 'US'),
);
movie.setDetails(
genres: ['Action', 'Adventure'],
);
await tester.pumpWidget(
MaterialApp(
home: Scaffold(
body: MovieItem(movie),
),
),
);
expect(find.text('Test Movie'), findsOneWidget);
movie.setDetails(
genres: ['Action', 'Adventure', 'Comedy'],
);
await tester.pump();
expect(find.textContaining('Action, Adventure, Comedy'), findsOneWidget);
});
}

34
test/view/movie_list_test.dart 100644
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import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:release_schedule/model/movie.dart';
import 'package:release_schedule/view/movie_item.dart';
import 'package:release_schedule/view/movie_list.dart';
void main() {
group('MovieList', () {
testWidgets('should render a list of movies', (WidgetTester tester) async {
final movies = [
MovieData(
'The Shawshank Redemption',
DateWithPrecisionAndCountry(
DateTime(1994, 9, 22), DatePrecision.day, 'US'),
),
MovieData(
'The Godfather',
DateWithPrecisionAndCountry(
DateTime(1972, 3, 24), DatePrecision.day, 'US'),
),
];
await tester.pumpWidget(
MaterialApp(
home: Scaffold(
body: MovieList(movies),
),
),
);
expect(find.byType(MovieItem), findsNWidgets(movies.length));
});
});
}

64
test/view/movie_manager_list_test.dart 100644
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import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:release_schedule/api/movie_api.dart';
import 'package:release_schedule/model/local_movie_storage.dart';
import 'package:release_schedule/model/movie.dart';
import 'package:release_schedule/model/movie_manager.dart';
import 'package:release_schedule/view/movie_item.dart';
import 'package:release_schedule/view/movie_list.dart';
import 'package:release_schedule/view/movie_manager_list.dart';
void main() {
group('MovieManagerList', () {
testWidgets('displays movie list', (tester) async {
final manager = MovieManager(MovieApi(), LocalMovieStorage());
manager.addMovies([
MovieData(
'Movie 1',
DateWithPrecisionAndCountry(
DateTime.now(), DatePrecision.day, 'US')),
MovieData(
'Movie 2',
DateWithPrecisionAndCountry(
DateTime.now(), DatePrecision.day, 'US')),
]);
// pump the delay until the change is written to the cache, so no timers run when the test finishes
await tester.pump(const Duration(seconds: 5));
await tester.pumpWidget(
MaterialApp(home: Scaffold(body: MovieManagerList(manager))));
expect(find.byType(LinearProgressIndicator), findsNothing);
expect(find.byType(MovieList), findsOneWidget);
});
testWidgets('updates when new movies are added', (tester) async {
final manager = MovieManager(MovieApi(), LocalMovieStorage());
manager.addMovies([
MovieData(
'Movie 1',
DateWithPrecisionAndCountry(
DateTime.now(), DatePrecision.day, 'US')),
MovieData(
'Movie 2',
DateWithPrecisionAndCountry(
DateTime.now(), DatePrecision.day, 'US')),
]);
await tester.pumpWidget(
MaterialApp(home: Scaffold(body: MovieManagerList(manager))));
manager.addMovies([
MovieData(
'Movie 3',
DateWithPrecisionAndCountry(
DateTime.now(), DatePrecision.day, 'US')),
]);
// pump the delay until the change is written to the cache, so no timers run when the test finishes
await tester.pump(const Duration(seconds: 5));
expect(find.byType(MovieList), findsOneWidget);
expect(find.byType(MovieItem), findsNWidgets(3));
});
});
}