add a first minimal test

test/nbrowser/AdminPanel.ts

@@ -192,6 +192,21 @@ describe('AdminPanel', function() {
     // useful there yet.
   });
 
+  it('should show various self checks', async function() {
+    await driver.get(`${server.getHost()}/admin`);
+    await waitForAdminPanel();
+    assert.equal(await driver.find('.test-admin-panel-item-name-probe-reachable').isDisplayed(), true);
+    await gu.waitToPass(
+      async () => assert.match(await driver.find('.test-admin-panel-item-value-probe-reachable').getText(), /✅/),
+      3000,
+    );
+    assert.equal(await driver.find('.test-admin-panel-item-name-probe-system-user').isDisplayed(), true);
+    await gu.waitToPass(
+      async () => assert.match(await driver.find('.test-admin-panel-item-value-probe-system-user').getText(), /✅/),
+      3000,
+    );
+  });
+
   const upperCheckNow = () => driver.find('.test-admin-panel-updates-upper-check-now');
   const lowerCheckNow = () => driver.find('.test-admin-panel-updates-lower-check-now');
   const autoCheckToggle = () => driver.find('.test-admin-panel-updates-auto-check');