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Aminark
45cf5b5482
- 区分按钮填充与图标颜色，统一书架、书源、搜索和阅读设置的选中态 - 调整编辑器语法高亮、键盘工具栏及统计卡片的浅深色显示 - 适配 RSS 正文和登录网页背景，保留书源自定义样式和页面状态 - 补充外观切换、页面对比度和管理页面的回归测试
87 lines
4.2 KiB
Swift
87 lines
4.2 KiB
Swift
import SwiftUI
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import UIKit
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import WebKit
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import XCTest
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@testable import Legado
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@MainActor
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final class AppearanceContrastTests: XCTestCase {
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func testLoginWebViewUsesAdaptiveBackgroundBeforeContentArrives() async throws {
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var source = BookSource(bookSourceUrl: "https://appearance.invalid", bookSourceName: "外观测试")
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source.loginUrl = "about:blank"
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let controller = UIHostingController(rootView: SourceLoginView(source: source))
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let window = UIWindow(frame: CGRect(x: 0, y: 0, width: 390, height: 844))
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window.overrideUserInterfaceStyle = .dark
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window.rootViewController = controller
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window.makeKeyAndVisible()
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defer { window.isHidden = true }
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func webView(in view: UIView) -> WKWebView? {
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if let view = view as? WKWebView { return view }
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return view.subviews.lazy.compactMap { webView(in: $0) }.first
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}
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window.layoutIfNeeded()
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for _ in 0..<20 {
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if webView(in: controller.view) != nil { break }
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try await Task.sleep(nanoseconds: 50_000_000)
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}
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let web = try XCTUnwrap(webView(in: controller.view))
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XCTAssertFalse(web.isOpaque)
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for style in [UIUserInterfaceStyle.dark, .light] {
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window.overrideUserInterfaceStyle = style
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window.layoutIfNeeded()
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let traits = UITraitCollection(userInterfaceStyle: style)
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let background = try XCTUnwrap(web.backgroundColor).resolvedColor(with: traits)
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let scroll = try XCTUnwrap(web.scrollView.backgroundColor).resolvedColor(with: traits)
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if style == .dark {
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XCTAssertLessThan(luminance(background), 0.15)
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XCTAssertLessThan(luminance(scroll), 0.15)
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} else {
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XCTAssertGreaterThan(luminance(background), 0.6)
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XCTAssertGreaterThan(luminance(scroll), 0.6)
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}
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}
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}
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func testSyntaxTokensHaveReadableContrastInBaseAndElevatedAppearances() {
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let samples: [(SyntaxCodeEditor.Language, String)] = [
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(.json, #"{"title":"正文","count":12,"enabled":true,"empty":null}"#),
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(.rule, "@css:div && $.title {{key}} ##"),
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(.regex, #"\d+.*(word){2,4}"#),
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(.javascript, "// comment\nconst value = 'text'; return 123; /* comment */")
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]
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for style in [UIUserInterfaceStyle.light, .dark] {
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for level in [UIUserInterfaceLevel.base, .elevated] {
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let traits = UITraitCollection(traitsFrom: [
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UITraitCollection(userInterfaceStyle: style),
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UITraitCollection(userInterfaceLevel: level)
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])
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for (language, text) in samples {
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let editor = SyntaxCodeEditor(text: .constant(text), language: language)
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let view = UITextView()
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view.overrideUserInterfaceStyle = style
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view.text = text
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editor.makeCoordinator().highlight(view)
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let background = UIColor.secondarySystemGroupedBackground.resolvedColor(with: traits)
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view.textStorage.enumerateAttribute(.foregroundColor, in: NSRange(location: 0, length: view.textStorage.length)) { color, _, _ in
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guard let color = color as? UIColor else { return XCTFail("Missing syntax color") }
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let foreground = color.resolvedColor(with: traits)
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let values = [luminance(foreground), luminance(background)].sorted()
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XCTAssertGreaterThanOrEqual((values[1] + 0.05) / (values[0] + 0.05), 4.5,
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"Low contrast for \(language), \(style), \(level)")
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}
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}
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}
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}
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}
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private func luminance(_ color: UIColor) -> Double {
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var r: CGFloat = 0, g: CGFloat = 0, b: CGFloat = 0, a: CGFloat = 0
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XCTAssertTrue(color.getRed(&r, green: &g, blue: &b, alpha: &a))
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func linear(_ value: CGFloat) -> Double {
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let value = Double(value)
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return value <= 0.04045 ? value / 12.92 : pow((value + 0.055) / 1.055, 2.4)
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}
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return 0.2126 * linear(r) + 0.7152 * linear(g) + 0.0722 * linear(b)
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}
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}
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