Accept Dugdale Arts Centre's explicit empty film listing

cinemas/dugdaleartscentre.co.uk/tests/index.test.js

@@ -44,4 +44,23 @@ describe(attributes.name, () => {
     },
     isRecording ? 240_000 : undefined,
   );
+
+  it("transforms the venue's explicit empty state to no movies", async () => {
+    const movieListPage = `
+      <div class="whats-on-grid" id="whats_on_grid">
+        <div class="empty">
+          <h2>We don’t currently have any scheduled events that match your selection.</h2>
+        </div>
+      </div>`;
+
+    expect(await transform({ movieListPage, moviePages: {} }, {})).toEqual([]);
+  });
+
+  it("throws when no movies are found without the empty state", async () => {
+    const movieListPage = `<div class="whats-on-grid" id="whats_on_grid"></div>`;
+
+    await expect(
+      transform({ movieListPage, moviePages: {} }, {}),
+    ).rejects.toThrow("No movies found - the page structure may have changed");
+  });
 });

cinemas/dugdaleartscentre.co.uk/transform.js

@@ -33,7 +33,7 @@ const getMatchingDescription = ($description) => {
   return $clone.text().trim();
 };
 
-async function transform({ moviePages }, sourcedEvents) {
+async function transform({ movieListPage, moviePages }, sourcedEvents) {
   const movies = [];
 
   for (const [moviePageUrl, { moviePage, booking, eventId }] of Object.entries(
@@ -87,7 +87,14 @@ async function transform({ moviePages }, sourcedEvents) {
   }
 
   if (movies.length === 0) {
-    throw new Error("No movies found - the page structure may have changed");
+    // When the venue has no films scheduled, the listing grid holds an
+    // explicit empty state ("We don't currently have any scheduled events
+    // that match your selection") instead of events. Without that marker, no
+    // movies means our parsing has broken.
+    const $ = cheerio.load(movieListPage);
+    if ($(".whats-on-grid .empty").length === 0) {
+      throw new Error("No movies found - the page structure may have changed");
+    }
   }
 
   const listOfSourcedEvents = Object.values(sourcedEvents).flatMap(