✨ Add a tester for Textualize/textual#4242

scroll_through_disabled.py

@@ -0,0 +1,29 @@
+"""Test scrolling through disabled widgets."""
+
+from textual.app import App, ComposeResult
+from textual.containers import VerticalScroll
+from textual.widgets import Placeholder
+
+
+class ScrollThroughDisabledApp(App[None]):
+    CSS = """
+    Placeholder {
+        height: 10;
+        margin: 1 2;
+        &:disabled {
+            opacity: 0.3;
+        }
+    }
+    """
+
+    def compose(self) -> ComposeResult:
+        with VerticalScroll():
+            for n in range(100):
+                yield (placeholder := Placeholder())
+                placeholder.disabled = bool(n % 2)
+
+
+if __name__ == "__main__":
+    ScrollThroughDisabledApp().run()
+
+### scroll_through_disabled.py ends here