add test for #64132 (#64307) (#64639)

Co-authored-by: Elastic Machine <[email protected]>

Co-authored-by: Elastic Machine <[email protected]>

x-pack/plugins/data_enhanced/public/search/async_search_strategy.test.ts

@@ -96,6 +96,34 @@ describe('Async search strategy', () => {
       });
   });
 
+  // For bug fixed in https://github.com/elastic/kibana/pull/64155
+  it('Continues polling if no records are returned on first async request', async () => {
+    mockSearch
+      .mockReturnValueOnce(of({ id: 1, total: 0, loaded: 0, is_running: true, is_partial: true }))
+      .mockReturnValueOnce(
+        of({ id: 1, total: 2, loaded: 2, is_running: false, is_partial: false })
+      );
+
+    const asyncSearch = asyncSearchStrategyProvider({
+      core: mockCoreStart,
+      getSearchStrategy: jest.fn().mockImplementation(() => {
+        return () => {
+          return {
+            search: mockSearch,
+          };
+        };
+      }),
+    });
+
+    expect(mockSearch).toBeCalledTimes(0);
+
+    await asyncSearch.search(mockRequest, mockOptions).toPromise();
+
+    expect(mockSearch).toBeCalledTimes(2);
+    expect(mockSearch.mock.calls[0][0]).toEqual(mockRequest);
+    expect(mockSearch.mock.calls[1][0]).toEqual({ id: 1, serverStrategy: 'foo' });
+  });
+
   it('only sends the ID and server strategy after the first request', async () => {
     mockSearch
       .mockReturnValueOnce(of({ id: 1, total: 2, loaded: 1, is_running: true, is_partial: true }))