fix(e2e): make imported replay assertions deterministic

Author: MCGPPeters

Picea.Abies.Conduit.Testing.E2E/HealthTests.cs

@@ -144,45 +144,15 @@ public async Task BrowserRuntime_ImportedTimelineReplay_ShouldApplySnapshots()
             await _page.GetByRole(AriaRole.Button, new() { Name = "Import" }).ClickAsync());
         await chooser.SetFilesAsync(exportedPath);
 
-        // Import can restore either first or last timeline position depending on adapter behavior.
-        // Wait until at least one replay control becomes enabled, then assert replay behavior.
-        var backButton = _page.GetByRole(AriaRole.Button, new() { Name = "Back" });
-        var stepButton = _page.GetByRole(AriaRole.Button, new() { Name = "Step" });
-        var backEnabled = false;
-        var stepEnabled = false;
-        for (var i = 0; i < 60; i++)
-        {
-            backEnabled = await backButton.IsEnabledAsync();
-            stepEnabled = await stepButton.IsEnabledAsync();
-            if (backEnabled || stepEnabled)
-            {
-                break;
-            }
-
-            await Task.Delay(500);
-        }
-
-        await Assert.That(backEnabled || stepEnabled).IsTrue();
-
-        if (backEnabled)
-        {
-            await backButton.ClickAsync();
-            await Expect(_page.Locator("h1")).ToContainTextAsync("Sign up", new() { Timeout = 10000 });
+        var timelineItems = _page.Locator("[data-sequence]");
+        await Expect(timelineItems.First).ToBeVisibleAsync(new() { Timeout = 15000 });
+        await Expect(timelineItems.Nth(1)).ToBeVisibleAsync(new() { Timeout = 15000 });
 
-            await Expect(stepButton).ToBeEnabledAsync(new() { Timeout = 10000 });
-            await stepButton.ClickAsync();
-            await Expect(_page.Locator("h1")).ToContainTextAsync("Sign in", new() { Timeout = 10000 });
-        }
-        else
-        {
-            await Expect(stepButton).ToBeEnabledAsync(new() { Timeout = 10000 });
-            await stepButton.ClickAsync();
-            await Expect(_page.Locator("h1")).ToContainTextAsync("Sign in", new() { Timeout = 10000 });
+        await timelineItems.First.ClickAsync();
+        await Expect(_page.Locator("h1")).ToContainTextAsync("Sign up", new() { Timeout = 10000 });
 
-            await Expect(backButton).ToBeEnabledAsync(new() { Timeout = 10000 });
-            await backButton.ClickAsync();
-            await Expect(_page.Locator("h1")).ToContainTextAsync("Sign up", new() { Timeout = 10000 });
-        }
+        await timelineItems.Nth(1).ClickAsync();
+        await Expect(_page.Locator("h1")).ToContainTextAsync("Sign in", new() { Timeout = 10000 });
     }
 
     private static ILocatorAssertions Expect(ILocator locator) =>

Picea.Abies.Conduit.Testing.E2E/Server/FeedServerTests.cs

@@ -150,10 +150,14 @@ public async Task ServerRuntime_ImportedTimelineReplay_ShouldApplySnapshots()
             await _page.GetByRole(AriaRole.Button, new() { Name = "Import" }).ClickAsync());
         await chooser.SetFilesAsync(exportedPath);
 
-        await _page.Locator("button:has-text('Back')").ClickAsync();
+        var timelineItems = _page.Locator("[data-sequence]");
+        await Expect(timelineItems.First).ToBeVisibleAsync(new() { Timeout = 15000 });
+        await Expect(timelineItems.Nth(1)).ToBeVisibleAsync(new() { Timeout = 15000 });
+
+        await timelineItems.First.ClickAsync();
         await Expect(_page.Locator("h1")).ToContainTextAsync("Sign up", new() { Timeout = 10000 });
 
-        await _page.Locator("button:has-text('Step')").ClickAsync();
+        await timelineItems.Nth(1).ClickAsync();
         await Expect(_page.Locator("h1")).ToContainTextAsync("Sign in", new() { Timeout = 10000 });
     }