chen08209
103 lines
3.4 KiB
Dart
103 lines
3.4 KiB
Dart
import 'dart:io';
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import 'dart:ui' as ui;
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import 'package:flutter_test/flutter_test.dart';
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String _androidAttribute(String source, String element, String attribute) {
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final elementTag = RegExp('<$element\\b[^>]*>').firstMatch(source)!.group(0)!;
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return RegExp(
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'android:$attribute="([^"]+)"',
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).firstMatch(elementTag)!.group(1)!;
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}
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double _androidDoubleAttribute(
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String source,
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String element,
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String attribute,
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) {
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return double.parse(_androidAttribute(source, element, attribute));
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}
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void main() {
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TestWidgetsFlutterBinding.ensureInitialized();
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test('TV launcher icons meet density-specific minimum sizes', () async {
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const expectedSizes = {
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'mdpi': 80,
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'hdpi': 120,
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'xhdpi': 160,
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'xxhdpi': 240,
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'xxxhdpi': 320,
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};
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for (final MapEntry(key: density, value: size) in expectedSizes.entries) {
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final file = File(
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'android/app/src/main/res/'
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'mipmap-television-$density/ic_launcher.webp',
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);
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expect(file.existsSync(), isTrue, reason: 'missing ${file.path}');
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final codec = await ui.instantiateImageCodec(await file.readAsBytes());
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final frame = await codec.getNextFrame();
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expect(
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(frame.image.width, frame.image.height),
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(size, size),
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reason: file.path,
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);
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frame.image.dispose();
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codec.dispose();
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}
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});
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test('TV adaptive launcher icon stays centered in the safe zone', () {
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final adaptiveIcon = File(
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'android/app/src/main/res/'
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'mipmap-television-anydpi-v26/ic_launcher.xml',
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).readAsStringSync();
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expect(
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_androidAttribute(adaptiveIcon, 'foreground', 'drawable'),
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'@drawable/ic_launcher_foreground_tv',
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);
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expect(
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_androidAttribute(adaptiveIcon, 'background', 'drawable'),
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'@color/ic_launcher_background',
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);
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final vector = File(
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'android/app/src/main/res/drawable/'
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'ic_launcher_foreground_tv.xml',
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).readAsStringSync();
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final scaleX = _androidDoubleAttribute(vector, 'group', 'scaleX');
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final scaleY = _androidDoubleAttribute(vector, 'group', 'scaleY');
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final translateX = _androidDoubleAttribute(vector, 'group', 'translateX');
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final translateY = _androidDoubleAttribute(vector, 'group', 'translateY');
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final viewportWidth = _androidDoubleAttribute(
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vector,
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'vector',
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'viewportWidth',
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);
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final viewportHeight = _androidDoubleAttribute(
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vector,
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'vector',
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'viewportHeight',
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);
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// Conservative bounds of the current logo, including the curved caps.
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const logoBounds = ui.Rect.fromLTRB(54, 33, 179, 206.5);
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final transformedBounds = ui.Rect.fromLTRB(
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(logoBounds.left * scaleX + translateX) / viewportWidth * 108,
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(logoBounds.top * scaleY + translateY) / viewportHeight * 108,
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(logoBounds.right * scaleX + translateX) / viewportWidth * 108,
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(logoBounds.bottom * scaleY + translateY) / viewportHeight * 108,
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);
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const safeZone = ui.Rect.fromLTWH(18, 18, 72, 72);
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expect(transformedBounds.left, greaterThanOrEqualTo(safeZone.left));
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expect(transformedBounds.top, greaterThanOrEqualTo(safeZone.top));
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expect(transformedBounds.right, lessThanOrEqualTo(safeZone.right));
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expect(transformedBounds.bottom, lessThanOrEqualTo(safeZone.bottom));
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expect(transformedBounds.center.dx, closeTo(safeZone.center.dx, 0.05));
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expect(transformedBounds.center.dy, closeTo(safeZone.center.dy, 0.05));
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});
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}
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