Make sure that interactive tests work only when interactivity is on.

Author: ilonatommy

src/Components/test/testassets/Components.WasmMinimal/Pages/NotFound/RedirectionNotFound-Interactive.razor

@@ -1,7 +1,7 @@
 @page "/redirection-not-found"
 @page "/reexecution/redirection-not-found"
 
-<RedirectionNotFoundComponent @rendermode="@RenderModeHelper.GetRenderMode(_renderMode)" />
+<RedirectionNotFoundComponent @rendermode="@RenderModeHelper.GetRenderMode(_renderMode)" WaitForInteractivity="true"/>
 
 @code{
     [Parameter, SupplyParameterFromQuery(Name = "renderMode")]
@@ -15,5 +15,9 @@
         {
             _renderMode = RenderModeHelper.ParseRenderMode(RenderModeStr);
         }
+        else
+        {
+            throw new ArgumentException("RenderModeStr cannot be null or empty. Did you mean to redirect to /redirection-not-found-ssr?", nameof(RenderModeStr));
+        }
     }
-}
+}

src/Components/test/testassets/Components.WasmMinimal/Pages/NotFound/RedirectionNotFoundComponent.razor

@@ -1,12 +1,14 @@
-
-@inject NavigationManager NavigationManager
+@inject NavigationManager NavigationManager
 
-<h1>Original page</h1>
+@if (!WaitForInteractivity || RendererInfo.IsInteractive)
+{
+    <h1>Original page</h1>
 
-<p id="test-info">Any content</p>
-<a id="link-to-not-existing-page" href="@_nonExistingPath">
-    Go to not-existing-page
-</a>
+    <p id="test-info">Any content</p>
+    <a id="link-to-not-existing-page" href="@_nonExistingPath">
+        Go to not-existing-page
+    </a>
+}
 
 @code{
     [Parameter]
@@ -16,6 +18,9 @@
     [Parameter]
     public bool StartStreaming { get; set; } = false;
 
+    [Parameter]
+    public bool WaitForInteractivity { get; set; } = false;
+
     private string _nonExistingPath = string.Empty;
 
     protected override async Task OnInitializedAsync()