[ResourceList] Add test to prevent future regression (#8589)

Shipped a hotfix in a hurry ~~today~~ yesterday. This adds missing test
for it. #8581

Author: kyledurand

polaris-react/src/components/ResourceList/tests/ResourceList.test.tsx

@@ -939,7 +939,7 @@ describe('<ResourceList />', () => {
   });
 
   describe('BulkActions', () => {
-    it('renders on initial load when items are selected', () => {
+    it('renders on initial load when items are selected and bulkActions are present', () => {
       const resourceList = mountWithApp(
         <ResourceList
           items={singleItemWithID}
@@ -951,6 +951,18 @@ describe('<ResourceList />', () => {
       expect(resourceList).toContainReactComponentTimes(BulkActions, 1);
     });
 
+    it('renders on initial load when items are selected and promotedBulkActions are present', () => {
+      const resourceList = mountWithApp(
+        <ResourceList
+          items={singleItemWithID}
+          renderItem={renderItem}
+          promotedBulkActions={promotedBulkActions}
+          selectedItems={['1']}
+        />,
+      );
+      expect(resourceList).toContainReactComponentTimes(BulkActions, 1);
+    });
+
     it('enables select mode when items are programmatically selected', () => {
       const resourceList = mountWithApp(
         <ResourceList