edde746
12d9865a41
GoNotoCurrent lacks Hangul syllables, and the Android libmpv build has no fontconfig/system-font fallback, so libass could not resolve any Korean glyph and subtitles rendered as boxes. Ship a Hangul subset of GoNotoKurrent-Regular beside the default font in the extracted subtitle fonts directory; libass picks it up as fallback by glyph coverage. close #1932
58 lines
2.1 KiB
Dart
58 lines
2.1 KiB
Dart
import 'dart:io';
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import 'dart:typed_data';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:path/path.dart' as p;
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import 'package:path_provider_platform_interface/path_provider_platform_interface.dart';
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import 'package:plezy/mpv/font_loader.dart';
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import '../test_helpers/io_fakes.dart';
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/// Guards the subtitle-font extraction contract: libass on Android MPV has no
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/// fontconfig/system fallback, so every script must ship inside the one
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/// directory this loader produces. Losing a font here silently regresses
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/// glyph coverage for subtitles (e.g. #1932, Korean Hangul).
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void main() {
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TestWidgetsFlutterBinding.ensureInitialized();
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late Directory tempRoot;
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late PathProviderPlatform originalPlatform;
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setUp(() {
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originalPlatform = PathProviderPlatform.instance;
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tempRoot = Directory.systemTemp.createTempSync('font_loader_test');
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PathProviderPlatform.instance = FakePathProvider(tempRoot);
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});
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tearDown(() {
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PathProviderPlatform.instance = originalPlatform;
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tempRoot.deleteSync(recursive: true);
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});
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// loadSubtitleFont() caches its result per process, so only this test may
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// trigger extraction.
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test('extracts the default and Hangul fonts into one directory', () async {
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final fontDir = await SubtitleFontLoader.loadSubtitleFont();
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expect(fontDir, isNotNull);
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final dir = Directory(fontDir!);
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expect(dir.existsSync(), isTrue);
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for (final fileName in ['go-noto-current-regular.ttf', 'go-noto-kurrent-hangul.ttf']) {
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final fontFile = File(p.join(fontDir, fileName));
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expect(fontFile.existsSync(), isTrue, reason: '$fileName missing');
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final bytes = fontFile.readAsBytesSync();
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expect(bytes.length, greaterThan(0), reason: '$fileName empty');
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// TrueType magic: 0x00010000. Catches a corrupt/truncated asset.
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expect(bytes.sublist(0, 4), Uint8List.fromList([0x00, 0x01, 0x00, 0x00]));
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}
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});
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test('default font name stays Go Noto Current-Regular', () {
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// configureSubtitleFonts() sets sub-font to this exact name; libass falls
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// back to the Hangul subset for Korean glyphs.
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expect(SubtitleFontLoader.fontName, 'Go Noto Current-Regular');
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});
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}
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