fix: reload tint colors while running
This commit is contained in:
@@ -0,0 +1,207 @@
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import AppKit
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import Testing
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@testable import Conjure
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@Test @MainActor
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func livePaletteReloadsGeneratedColorsKeepsOverridesAndRetainsLastValidPalette() throws {
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let original = ThemePalette.loaded
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let directory = FileManager.default.temporaryDirectory.appendingPathComponent(UUID().uuidString)
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try FileManager.default.createDirectory(at: directory, withIntermediateDirectories: true)
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defer {
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ThemePalette.loaded = original
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try? FileManager.default.removeItem(at: directory)
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}
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let config = directory.appendingPathComponent("config.toml")
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let theme = directory.appendingPathComponent("theme.json")
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ThemePalette.reload(from: directory)
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let white = NSColor(srgbRed: 1, green: 1, blue: 1, alpha: 1)
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let black = NSColor(srgbRed: 0, green: 0, blue: 0, alpha: 1)
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let changes = PaletteChanges()
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let observer = NotificationCenter.default.addObserver(
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forName: ThemePalette.didChangeNotification, object: nil, queue: .main
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) { _ in
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MainActor.assumeIsolated {
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changes.count += 1
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changes.background = ThemePalette.background
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changes.accent = ThemePalette.accent
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}
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}
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defer { NotificationCenter.default.removeObserver(observer) }
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try Data("theme = 'tint'\ncolors.accent = '#ffffff'\n".utf8).write(to: config)
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try Data(##"{"colors":{"background":"#123456","accent":"#ff0000","text":"#000000"}}"##.utf8)
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.write(to: theme)
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#expect(ThemePalette.reload(from: directory))
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let firstBackground = ThemePalette.background
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#expect(ThemePalette.accent == white)
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#expect(ThemePalette.text == black)
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#expect(changes.count == 1)
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#expect(changes.background == ThemePalette.background)
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#expect(changes.accent == ThemePalette.accent)
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#expect(ThemePalette.background.alphaComponent == 0.55)
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#expect(ThemePalette.selectionFill.alphaComponent == 0.12)
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#expect(ThemePalette.selectionBorder.alphaComponent == 0.30)
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#expect(ThemePalette.keyBackground.alphaComponent == 0.5)
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#expect(!ThemePalette.reload(from: directory))
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#expect(changes.count == 1)
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try Data(##"{"colors":{"background":"#abcdef","accent":"#00ff00","text":"#ffffff"}}"##.utf8)
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.write(to: theme, options: .atomic)
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#expect(ThemePalette.reload(from: directory))
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#expect(ThemePalette.background != firstBackground)
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#expect(ThemePalette.accent == white)
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#expect(ThemePalette.text == white)
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#expect(changes.count == 2)
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let lastBackground = ThemePalette.background
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try Data("partial JSON".utf8).write(to: theme)
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#expect(!ThemePalette.reload(from: directory))
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#expect(ThemePalette.background == lastBackground)
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#expect(ThemePalette.text == white)
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#expect(changes.count == 2)
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#expect(ThemePalette.configurationError?.contains(theme.path) == true)
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try Data(##"{"colors":{"background":"#abcdef","text":"#ffffff"}}"##.utf8).write(to: theme)
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#expect(!ThemePalette.reload(from: directory))
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#expect(ThemePalette.configurationError == nil)
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#expect(changes.count == 2)
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try Data("colors.accent = '#invalid'\n".utf8).write(to: config)
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#expect(!ThemePalette.reload(from: directory))
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#expect(ThemePalette.background == lastBackground)
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#expect(ThemePalette.configurationError?.contains(config.path) == true)
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#expect(changes.count == 2)
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try Data("theme = 'sunset'\n".utf8).write(to: config)
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#expect(ThemePalette.reload(from: directory))
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#expect(ThemePalette.background == ColorScheme.sunset.background.withAlphaComponent(0.55))
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#expect(ThemePalette.accent == ColorScheme.sunset.accent)
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#expect(changes.count == 3)
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#expect(ThemePalette.configurationError == nil)
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}
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@MainActor private final class PaletteChanges {
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var count = 0
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var background: NSColor?
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var accent: NSColor?
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}
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@Test(arguments: ["config.toml", "theme.json"]) @MainActor
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func liveObservationDetectsInPlaceWritesAndRearmsAfterAtomicReplacement(_ filename: String) async throws {
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let root = FileManager.default.temporaryDirectory.appendingPathComponent(UUID().uuidString)
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let directory = root.appendingPathComponent("conjure")
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try FileManager.default.createDirectory(at: directory, withIntermediateDirectories: true)
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defer { try? FileManager.default.removeItem(at: root) }
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let file = directory.appendingPathComponent(filename)
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try Data("initial".utf8).write(to: file)
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let events = AsyncStream<String>.makeStream()
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let observation = ColorSchemeObservation(directory: directory) {
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events.continuation.yield((try? String(contentsOf: file, encoding: .utf8)) ?? "<missing>")
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}
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defer {
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events.continuation.finish()
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withExtendedLifetime(observation) {}
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}
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try overwriteInPlace("in-place", at: file)
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try await expectObserved("in-place", from: events.stream)
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try Data("atomic".utf8).write(to: file, options: .atomic)
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try await expectObserved("atomic", from: events.stream)
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try overwriteInPlace("after-replacement", at: file)
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try await expectObserved("after-replacement", from: events.stream)
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}
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@Test @MainActor
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func liveObservationFindsInitiallyMissingDirectoriesAndRecoversAfterRemoval() async throws {
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let root = FileManager.default.temporaryDirectory.appendingPathComponent(UUID().uuidString)
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try FileManager.default.createDirectory(at: root, withIntermediateDirectories: true)
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defer { try? FileManager.default.removeItem(at: root) }
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let missingAncestor = root.appendingPathComponent("missing")
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let directory = missingAncestor.appendingPathComponent("conjure")
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let file = directory.appendingPathComponent("theme.json")
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let events = AsyncStream<String>.makeStream()
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let observation = ColorSchemeObservation(directory: directory) {
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events.continuation.yield((try? String(contentsOf: file, encoding: .utf8)) ?? "<missing>")
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}
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defer {
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events.continuation.finish()
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withExtendedLifetime(observation) {}
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}
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try FileManager.default.createDirectory(at: directory, withIntermediateDirectories: true)
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try Data("created".utf8).write(to: file)
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try await expectObserved("created", from: events.stream)
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try overwriteInPlace("created-then-edited", at: file)
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try await expectObserved("created-then-edited", from: events.stream)
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try FileManager.default.removeItem(at: missingAncestor)
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try await expectObserved("<missing>", from: events.stream)
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try FileManager.default.createDirectory(at: directory, withIntermediateDirectories: true)
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try Data("recreated".utf8).write(to: file, options: .atomic)
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try await expectObserved("recreated", from: events.stream)
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try overwriteInPlace("recreated-then-edited", at: file)
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try await expectObserved("recreated-then-edited", from: events.stream)
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}
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private func overwriteInPlace(_ value: String, at url: URL) throws {
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let handle = try FileHandle(forWritingTo: url)
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defer { try? handle.close() }
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try handle.truncate(atOffset: 0)
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try handle.write(contentsOf: Data(value.utf8))
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}
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private struct ObservationTimeout: Error {}
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private func expectObserved(_ expected: String, from events: AsyncStream<String>) async throws {
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try await withThrowingTaskGroup(of: Void.self) { group in
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group.addTask {
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for await value in events {
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if value == expected { return }
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}
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throw CancellationError()
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}
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group.addTask {
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// Only a failure deadline: event delivery, not a sleep, advances the test.
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try await Task.sleep(for: .seconds(5))
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throw ObservationTimeout()
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}
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defer { group.cancelAll() }
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_ = try await group.next()
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}
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}
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@Test @MainActor
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func liveBackgroundRebuildsCachedGradientsWithoutReplacingTheView() throws {
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_ = NSApplication.shared
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let original = ThemePalette.loaded
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let directory = FileManager.default.temporaryDirectory.appendingPathComponent(UUID().uuidString)
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try FileManager.default.createDirectory(at: directory, withIntermediateDirectories: true)
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let window = NSWindow(contentRect: NSRect(x: 0, y: 0, width: 750, height: 480),
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styleMask: .borderless, backing: .buffered, defer: false)
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window.isReleasedWhenClosed = false
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defer {
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ThemePalette.loaded = original
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window.orderOut(nil)
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try? FileManager.default.removeItem(at: directory)
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}
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let config = directory.appendingPathComponent("config.toml")
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try Data("colors.accent = '#ff0000'\ncolors.glow = '#ff0000'\n".utf8).write(to: config)
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ThemePalette.reload(from: directory)
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let background = LauncherBackground(frame: NSRect(x: 0, y: 0, width: 750, height: 480))
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window.contentView?.addSubview(background)
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func glowColor() throws -> NSColor {
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let bitmap = try #require(background.bitmapImageRepForCachingDisplay(in: background.bounds))
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background.cacheDisplay(in: background.bounds, to: bitmap)
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return try #require(bitmap.colorAt(x: Int(CGFloat(bitmap.pixelsWide) * 0.58),
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y: Int(CGFloat(bitmap.pixelsHigh) * 0.06))?.usingColorSpace(.deviceRGB))
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}
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let before = try glowColor()
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let backgroundColor = ThemePalette.background
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background.needsDisplay = false
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try Data("colors.accent = '#00ff00'\ncolors.glow = '#00ff00'\n".utf8).write(to: config)
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#expect(ThemePalette.reload(from: directory))
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#expect(ThemePalette.background == backgroundColor)
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#expect(background.needsDisplay)
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let after = try glowColor()
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#expect(before.redComponent > after.redComponent)
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#expect(after.greenComponent > before.greenComponent)
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}
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