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ReelShort/test/theme/app_theme_test.dart
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Dart

// Author: fruit.com.cn
import 'dart:math';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:fruitshorts/app.dart';
import 'package:fruitshorts/core/theme/app_colors.dart';
import 'package:fruitshorts/core/theme/app_dimens.dart';
import 'package:fruitshorts/core/theme/app_theme.dart';
double _contrast(Color foreground, Color background) {
final first = foreground.computeLuminance();
final second = background.computeLuminance();
return (max(first, second) + 0.05) / (min(first, second) + 0.05);
}
void main() {
test('should_expose_dark_visual_tokens', () {
expect(AppColors.blue, const Color(0xFFFF6B2C));
expect(AppColors.bluePressed, const Color(0xFFE55A1F));
expect(AppColors.secondary, const Color(0xFF22D3EE));
expect(AppColors.ink, const Color(0xFF0B1020));
expect(AppColors.card, const Color(0xFF151B2E));
expect(AppColors.raised, const Color(0xFF1C2436));
expect(AppColors.border, const Color(0x0FFFFFFF));
expect(AppColors.onSurface, const Color(0xEBFFFFFF));
expect(AppColors.muted, const Color(0xA3FFFFFF));
expect(AppColors.subtle, const Color(0x61FFFFFF));
expect(AppDimens.cardRadius, 12);
expect(AppDimens.buttonRadius, 10);
expect(AppDimens.inputRadius, 10);
expect(AppDimens.chipRadius, 6);
});
test('should_keep_primary_and_secondary_text_readable_on_dark', () {
expect(
_contrast(AppColors.onSurface, AppColors.ink),
greaterThanOrEqualTo(4.5),
);
expect(
_contrast(AppColors.onSurface, AppColors.card),
greaterThanOrEqualTo(4.5),
);
expect(_contrast(AppColors.muted, AppColors.card), greaterThanOrEqualTo(3));
expect(_contrast(AppColors.gold, AppColors.ink), greaterThanOrEqualTo(3));
expect(_contrast(AppColors.blue, AppColors.ink), greaterThanOrEqualTo(3));
});
test('should_use_dark_color_scheme_and_light_system_icons', () {
final theme = AppTheme.dark();
expect(theme.brightness, Brightness.dark);
expect(theme.colorScheme.primary, AppColors.blue);
expect(theme.colorScheme.onPrimary, AppColors.onPrimary);
expect(theme.colorScheme.secondary, AppColors.secondary);
expect(theme.colorScheme.surface, AppColors.ink);
expect(theme.colorScheme.onSurface, AppColors.onSurface);
expect(theme.colorScheme.outline, AppColors.border);
expect(theme.scaffoldBackgroundColor, AppColors.ink);
expect(theme.appBarTheme.backgroundColor, AppColors.card);
expect(theme.appBarTheme.systemOverlayStyle, SystemUiOverlayStyle.light);
expect(theme.cardTheme.elevation, 0);
expect(theme.dialogTheme.backgroundColor, AppColors.raised);
expect(theme.bottomNavigationBarTheme.backgroundColor, AppColors.bar);
expect(theme.inputDecorationTheme.fillColor, AppColors.input);
});
test('should_use_ink_navigation_bar_with_light_icons', () {
expect(appSystemOverlayStyle.statusBarColor, Colors.transparent);
expect(appSystemOverlayStyle.statusBarIconBrightness, Brightness.light);
expect(appSystemOverlayStyle.systemNavigationBarColor, AppColors.ink);
expect(
appSystemOverlayStyle.systemNavigationBarDividerColor,
Colors.transparent,
);
expect(
appSystemOverlayStyle.systemNavigationBarIconBrightness,
Brightness.light,
);
expect(appSystemOverlayStyle.systemNavigationBarContrastEnforced, isFalse);
final sheetTheme = AppTheme.dark().bottomSheetTheme;
expect(sheetTheme.backgroundColor, Colors.transparent);
expect(sheetTheme.modalBackgroundColor, Colors.transparent);
expect(sheetTheme.surfaceTintColor, Colors.transparent);
});
test('should_expose_flat_page_gradient_without_card_shadow', () {
expect(AppTheme.pageGradient.colors, [AppColors.surfaceTop, AppColors.ink]);
expect(AppTheme.cardShadow.color, AppColors.cardShadow);
expect(AppTheme.cardShadow.blurRadius, 0);
expect(AppTheme.cardShadow.offset, Offset.zero);
});
}