mirror of
https://github.com/AtomUI/AtomUI.git
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238 lines
8.9 KiB
C#
238 lines
8.9 KiB
C#
using Avalonia;
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using Avalonia.Controls;
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using Avalonia.Headless;
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using Avalonia.Threading;
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using Avalonia.VisualTree;
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using Shouldly;
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using Xunit;
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using AtomUISplitButton = AtomUI.Desktop.Controls.SplitButton;
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using AvaloniaWindow = Avalonia.Controls.Window;
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namespace AtomUI.Desktop.Controls.Tests.Buttons;
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// 回归测试：锁定「hover 次按钮时控件几何与分隔线状态稳定」。用真实 headless MouseMove
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// 驱动（而非手动 RaiseEvent），让 Avalonia 的 hover 状态机与布局后重评估参与运行：
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// 1. 次按钮被指向时 Bounds 必须完全不变（曾因左移 1px 覆盖接缝导致可见位移与边缘快速闪动）；
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// 2. 穿越接缝一次，分隔线可见性最多翻转 2 次，驻留时不得继续翻转（事件风暴/振荡环防护）。
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public class SplitButtonSeparatorStabilityTests
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{
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static SplitButtonSeparatorStabilityTests()
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{
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AvaloniaTestApp.EnsureInitialized();
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}
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[Fact]
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public void Diagnose_Separator_Visibility_Transitions_While_Pointer_Crosses_Seam()
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{
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var splitButton = new AtomUISplitButton
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{
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Width = 160,
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Height = 36,
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Content = "Split Action",
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IsPrimaryButtonType = true,
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IsMotionEnabled = false,
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IsWaveSpiritEnabled = false
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};
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ShowInWindow(splitButton, window =>
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{
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var secondaryButton = window.GetVisualDescendants()
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.OfType<AtomUI.Desktop.Controls.Button>()
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.Single(button => button.Name == "PART_SecondaryButton");
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var primaryButton = window.GetVisualDescendants()
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.OfType<AtomUI.Desktop.Controls.Button>()
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.Single(button => button.Name == "PART_PrimaryButton");
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var seamStart = primaryButton.Bounds.Right; // 接缝条带左缘
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var secondaryLeftBeforeHover = secondaryButton.Bounds.Left; // 应为 seamStart + strip
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var centerY = secondaryButton.Bounds.Center.Y;
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var transitions = 0;
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var lastVisible = splitButton.IsSeparatorVisible;
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void MoveTo(double x)
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{
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window.MouseMove(new Point(x, centerY));
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for (var i = 0; i < 4; i++)
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{
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Dispatcher.UIThread.RunJobs();
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}
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var visible = splitButton.IsSeparatorVisible;
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if (visible != lastVisible)
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{
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transitions++;
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lastVisible = visible;
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}
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}
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// 从主按钮内部逐步穿越接缝进入次按钮，再原路返回。
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var steps = new List<double>();
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for (var x = seamStart - 6; x <= secondaryLeftBeforeHover + 6; x += 0.5)
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{
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steps.Add(x);
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}
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for (var i = steps.Count - 1; i >= 0; i--)
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{
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steps.Add(steps[i]);
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}
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foreach (var x in steps)
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{
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MoveTo(x);
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}
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// 一次进入 + 一次离开：分隔线可见性最多翻转 2 次。
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// 若存在振荡环（布局改变 hover，hover 再改布局），翻转次数会远超 2。
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transitions.ShouldBeLessThanOrEqualTo(2,
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$"separator visibility flipped {transitions} times while crossing the seam once; " +
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$"hover storm suspected. secondary left before hover: {secondaryLeftBeforeHover}, " +
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$"after: {secondaryButton.Bounds.Left}");
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// 驻留在次按钮边缘内侧：布局稳定后可见性不得继续翻转。
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MoveTo(secondaryLeftBeforeHover + 0.25);
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var stableTransitions = transitions;
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for (var i = 0; i < 10; i++)
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{
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Dispatcher.UIThread.RunJobs();
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var visible = splitButton.IsSeparatorVisible;
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if (visible != lastVisible)
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{
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transitions++;
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lastVisible = visible;
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}
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}
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transitions.ShouldBe(stableTransitions,
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"separator visibility kept flipping without pointer movement; layout/hover feedback loop confirmed");
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});
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}
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[Theory]
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[InlineData(false, false, false)]
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[InlineData(true, false, false)]
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[InlineData(false, true, false)]
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[InlineData(true, true, false)]
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[InlineData(false, false, true)]
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public void Diagnose_Separator_Stability_While_Pointer_Rests_On_Secondary_Edge(
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bool enableMotion, bool enableWave, bool useLayoutRounding)
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{
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var splitButton = new AtomUISplitButton
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{
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Width = 160,
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Height = 36,
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Content = "Split Action",
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IsPrimaryButtonType = true,
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IsMotionEnabled = enableMotion,
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IsWaveSpiritEnabled = enableWave,
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UseLayoutRounding = useLayoutRounding
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};
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ShowInWindow(splitButton, window =>
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{
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var secondaryButton = window.GetVisualDescendants()
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.OfType<AtomUI.Desktop.Controls.Button>()
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.Single(button => button.Name == "PART_SecondaryButton");
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var primaryButton = window.GetVisualDescendants()
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.OfType<AtomUI.Desktop.Controls.Button>()
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.Single(button => button.Name == "PART_PrimaryButton");
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var secondaryLeftBeforeHover = secondaryButton.Bounds.Left;
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var centerY = secondaryButton.Bounds.Center.Y;
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// 指针驻留在次按钮左缘内侧 0.25 DIP（最贴近视频里"移到按钮边缘"的场景）。
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window.MouseMove(new Point(secondaryLeftBeforeHover + 0.25, centerY));
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PumpFrames(window);
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var lastVisible = splitButton.IsSeparatorVisible;
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var transitions = 0;
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// 无指针移动，仅推进帧（motion transition / wave 动画持续运行）。
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for (var i = 0; i < 30; i++)
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{
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PumpFrames(window);
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var visible = splitButton.IsSeparatorVisible;
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if (visible != lastVisible)
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{
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transitions++;
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lastVisible = visible;
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}
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}
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transitions.ShouldBe(0,
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$"motion={enableMotion} wave={enableWave} rounding={useLayoutRounding}: " +
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$"separator flipped {transitions} times while the pointer rests on the secondary edge");
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});
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}
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[Fact]
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public void Secondary_Button_Keeps_Identical_Geometry_While_Pointed_Over()
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{
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// 回归：hover 次按钮不得改变次按钮的位置或尺寸。曾用「次按钮左移 1px 覆盖接缝」
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// 实现分隔线隐藏，导致 hover 时按钮可见位移、边缘处 Enter/Exit 抖动放大为快速闪动。
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// 分隔线的 hover 隐藏必须由颜色涌现（线色 = 次按钮 hover 背景 token），不允许动布局。
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var splitButton = new AtomUISplitButton
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{
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Width = 160,
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Height = 36,
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Content = "Split Action",
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IsPrimaryButtonType = true,
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IsMotionEnabled = false,
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IsWaveSpiritEnabled = false
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};
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ShowInWindow(splitButton, window =>
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{
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var secondaryButton = window.GetVisualDescendants()
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.OfType<AtomUI.Desktop.Controls.Button>()
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.Single(button => button.Name == "PART_SecondaryButton");
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var boundsBeforeHover = secondaryButton.Bounds;
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var center = boundsBeforeHover.Center;
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window.MouseMove(center);
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PumpFrames(window);
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splitButton.IsSeparatorVisible.ShouldBeFalse();
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secondaryButton.Bounds.ShouldBe(boundsBeforeHover,
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"hover must not shift or resize the secondary button");
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window.MouseMove(center.WithX(center.X - 1));
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PumpFrames(window);
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secondaryButton.Bounds.ShouldBe(boundsBeforeHover);
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});
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}
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private static void PumpFrames(AvaloniaWindow window)
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{
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Dispatcher.UIThread.RunJobs();
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window.UpdateLayout();
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Dispatcher.UIThread.RunJobs();
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}
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private static void ShowInWindow(Control content, Action<AvaloniaWindow> assertion)
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{
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var window = new AvaloniaWindow
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{
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Width = 240,
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Height = 160,
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Content = content
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};
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try
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{
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window.Show();
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Dispatcher.UIThread.RunJobs();
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content.ApplyTemplate();
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window.UpdateLayout();
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Dispatcher.UIThread.RunJobs();
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assertion(window);
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}
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finally
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{
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window.Close();
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Dispatcher.UIThread.RunJobs();
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}
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}
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}
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