tests/e2e/grouped-search: add example e2e test feature directory

This CL demonstrates the usage of feature directories
for the e2e tests. These tests will not run in CI.

Change-Id: I49266bca846e79d1bacc16491da30366baa18044
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/338114
Trust: Jamal Carvalho <jamal@golang.org>
Run-TryBot: Jamal Carvalho <jamal@golang.org>
Reviewed-by: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Julie Qiu <julie@golang.org>
diff --git a/tests/e2e/grouped-search/__image_snapshots__/grouped-search--screenshot-snap.png b/tests/e2e/grouped-search/__image_snapshots__/grouped-search--screenshot-snap.png
new file mode 100644
index 0000000..01051f9
--- /dev/null
+++ b/tests/e2e/grouped-search/__image_snapshots__/grouped-search--screenshot-snap.png
Binary files differ
diff --git a/tests/e2e/grouped-search/config.yaml b/tests/e2e/grouped-search/config.yaml
new file mode 100644
index 0000000..4f2cf88
--- /dev/null
+++ b/tests/e2e/grouped-search/config.yaml
@@ -0,0 +1,7 @@
+experiments:
+  - name: insert-symbol-search-documents
+    rollout: 100
+  - name: search-grouping
+    rollout: 100
+  - name: symbol-search
+    rollout: 100
diff --git a/tests/e2e/grouped-search/grouped-search.test.ts b/tests/e2e/grouped-search/grouped-search.test.ts
new file mode 100644
index 0000000..45a6d6d
--- /dev/null
+++ b/tests/e2e/grouped-search/grouped-search.test.ts
@@ -0,0 +1,21 @@
+/**
+ * @license
+ * Copyright 2020 The Go Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style
+ * license that can be found in the LICENSE file.
+ */
+
+import * as pg from '../helpers/page';
+import * as search from '../helpers/search.page';
+
+test('screenshot', async () => {
+  const page = await pg.newPage();
+  await pg.fullScreenshotTest(page, {
+    path: '/search?q=http',
+    prepare: search.prepare,
+  });
+});
+
+test('no page errors', () => {
+  expect(pageErrors).toHaveLength(0);
+});
diff --git a/tests/e2e/grouped-search/seed.txt b/tests/e2e/grouped-search/seed.txt
new file mode 100644
index 0000000..db278ea
--- /dev/null
+++ b/tests/e2e/grouped-search/seed.txt
@@ -0,0 +1 @@
+std@v1.16.4
\ No newline at end of file