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TUIkit/Tests/TUIkitTests/PreferenceValuesTests.swift
phranck 82544e0e02 Refactor: Add Swift 6 @MainActor to View hierarchy
Add @MainActor to View, ViewModifier, Renderable, App, Scene protocols and all builders (ViewBuilder, SceneBuilder, ChildInfoProvider). Update renderToBuffer(), makeChildInfo(), resolveChildInfos() for main-actor isolation. Mark generic Equatable conformances with @preconcurrency. Update all 45 test suites with @MainActor annotation.
2026-02-07 02:50:41 +01:00

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// 🖥 TUIKit Terminal UI Kit for Swift
// PreferenceValuesTests.swift
//
// Created by LAYERED.work
// License: MIT
import Testing
@testable import TUIkit
/// String preference key for testing.
private struct ValStringKey: PreferenceKey {
static let defaultValue: String = "default"
}
/// Counter preference key for testing.
private struct ValCounterKey: PreferenceKey {
static let defaultValue: Int = 0
}
@MainActor
@Suite("PreferenceValues Tests")
struct PreferenceValuesTests {
@Test("Empty values return default")
func emptyDefault() {
let values = PreferenceValues()
#expect(values[ValStringKey.self] == "default")
#expect(values[ValCounterKey.self] == 0)
}
@Test("Set and get value")
func setAndGet() {
var values = PreferenceValues()
values[ValStringKey.self] = "custom"
#expect(values[ValStringKey.self] == "custom")
}
@Test("Different keys are independent")
func independentKeys() {
var values = PreferenceValues()
values[ValStringKey.self] = "hello"
values[ValCounterKey.self] = 42
#expect(values[ValStringKey.self] == "hello")
#expect(values[ValCounterKey.self] == 42)
}
@Test("Merge overwrites existing values")
func mergeOverwrites() {
var base = PreferenceValues()
base[ValStringKey.self] = "original"
var other = PreferenceValues()
other[ValStringKey.self] = "overwritten"
base.merge(other)
#expect(base[ValStringKey.self] == "overwritten")
}
@Test("Merge preserves non-overlapping values")
func mergePreservesOthers() {
var base = PreferenceValues()
base[ValStringKey.self] = "kept"
var other = PreferenceValues()
other[ValCounterKey.self] = 99
base.merge(other)
#expect(base[ValStringKey.self] == "kept")
#expect(base[ValCounterKey.self] == 99)
}
@Test("Merge with empty values is no-op")
func mergeEmpty() {
var base = PreferenceValues()
base[ValStringKey.self] = "unchanged"
base.merge(PreferenceValues())
#expect(base[ValStringKey.self] == "unchanged")
}
}