FE fetch counts async on search page load

Creates `refresh_counts` module to dynamically fetch
and load data based on attributes of HAML elements.

2 files changed, 42 insertions, 0 deletions

diff --git a/spec/frontend/pages/search/show/__snapshots__/refresh_counts_spec.js.snap b/spec/frontend/pages/search/show/__snapshots__/refresh_counts_spec.js.snap
new file mode 100644
index 00000000000..ce456d6c899
--- /dev/null
+++ b/spec/frontend/pages/search/show/__snapshots__/refresh_counts_spec.js.snap
@@ -0,0 +1,7 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`pages/search/show/refresh_counts fetches and displays search counts 1`] = `
+"<div class=\\"badge\\">22</div>
+<div class=\\"badge js-search-count\\" data-url=\\"http://test.host/search/count?search=lorem+ipsum&amp;project_id=3&amp;scope=issues\\">4</div>
+<div class=\\"badge js-search-count\\" data-url=\\"http://test.host/search/count?search=lorem+ipsum&amp;project_id=3&amp;scope=merge_requests\\">5</div>"
+`;
diff --git a/spec/frontend/pages/search/show/refresh_counts_spec.js b/spec/frontend/pages/search/show/refresh_counts_spec.js
new file mode 100644
index 00000000000..ead268b3971
--- /dev/null
+++ b/spec/frontend/pages/search/show/refresh_counts_spec.js
@@ -0,0 +1,35 @@
+import MockAdapter from 'axios-mock-adapter';
+import { TEST_HOST } from 'helpers/test_constants';
+import axios from '~/lib/utils/axios_utils';
+import refreshCounts from '~/pages/search/show/refresh_counts';
+
+const URL = `${TEST_HOST}/search/count?search=lorem+ipsum&project_id=3`;
+const urlWithScope = scope => `${URL}&scope=${scope}`;
+const counts = [{ scope: 'issues', count: 4 }, { scope: 'merge_requests', count: 5 }];
+const fixture = `<div class="badge">22</div>
+<div class="badge js-search-count hidden" data-url="${urlWithScope('issues')}"></div>
+<div class="badge js-search-count hidden" data-url="${urlWithScope('merge_requests')}"></div>`;
+
+describe('pages/search/show/refresh_counts', () => {
+  let mock;
+
+  beforeEach(() => {
+    mock = new MockAdapter(axios);
+    setFixtures(fixture);
+  });
+
+  afterEach(() => {
+    mock.restore();
+  });
+
+  it('fetches and displays search counts', () => {
+    counts.forEach(({ scope, count }) => {
+      mock.onGet(urlWithScope(scope)).reply(200, { count });
+    });
+
+    // assert before act behavior
+    return refreshCounts().then(() => {
+      expect(document.body.innerHTML).toMatchSnapshot();
+    });
+  });
+});