diff --git a/Lombiq.HelpfulExtensions.Tests.UI/Extensions/TestCaseUITestContextExtensions.cs b/Lombiq.HelpfulExtensions.Tests.UI/Extensions/TestCaseUITestContextExtensions.cs
index f96c68ca..d091dd34 100644
--- a/Lombiq.HelpfulExtensions.Tests.UI/Extensions/TestCaseUITestContextExtensions.cs
+++ b/Lombiq.HelpfulExtensions.Tests.UI/Extensions/TestCaseUITestContextExtensions.cs
@@ -109,6 +109,9 @@ public static async Task TestFeatureCodeGenerationsAsync(this UITestContext cont
 
         context.Get(By.Id("generated-migration-code").OfAnyVisibility()).GetValue().ShouldBe(GeneratedMigrationCodes.Page);
 
+        // Making sure that the collapsible area is open.
+        context.Get(By.CssSelector("#generated-migration-code-container.collapse.show"));
+
         // Checking the first line of the CodeMirror editor.
         context.Get(By.CssSelector(".CodeMirror-line .cm-variable")).Text.ShouldBe("_contentDefinitionManager");
         context.Get(By.CssSelector(".CodeMirror-line .cm-property")).Text.ShouldBe("AlterTypeDefinition");