Added film strip hello world golden test

Author: matthew-carroll

test_goldens/scene_types/film_strip/hello_film_strip.png

@@ -1,10 +1,31 @@
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter_test_goldens/flutter_test_goldens.dart';
 
 void main() {
   group("Film strips >", () {
     testGoldenScene("hello world", (tester) async {
-      //
+      await FilmStrip(
+        "Hello, Film Strip!",
+        fileName: "hello_film_strip",
+        layout: ColumnSceneLayout(),
+      )
+          .setupWithWidget(
+            Padding(
+              padding: const EdgeInsets.all(24),
+              child: ElevatedButton(
+                onPressed: () {},
+                child: Text("Click Me!"),
+              ),
+            ),
+          )
+          .takePhoto("Idle")
+          .hoverOver(find.byType(ElevatedButton))
+          .takePhoto("Hovering")
+          .pressHover()
+          .takePhoto("Pressed")
+          .run(tester);
     });
   });
 }