Add new E2E sync multi profiles tests. This should not affect any existing

chrome/browser/sync/test/integration/two_client_e2e_test.cc

Index: chrome/browser/sync/test/integration/two_client_e2e_test.cc
diff --git a/chrome/browser/sync/test/integration/two_client_e2e_test.cc b/chrome/browser/sync/test/integration/two_client_e2e_test.cc
new file mode 100644
index 0000000000000000000000000000000000000000..2f7553c9b85d8330fb1b3977dce8f97fd77e5714
--- /dev/null
+++ b/chrome/browser/sync/test/integration/two_client_e2e_test.cc
@@ -0,0 +1,96 @@
+// Copyright (c) 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/strings/stringprintf.h"
+#include "chrome/browser/sync/test/integration/bookmarks_helper.h"
+#include "chrome/browser/sync/test/integration/sync_test.h"
+
+// The E2E tests are designed to run only against real backend servers. They are
+// disabled on regular bots. http://crbug.com/431366
+#define E2E_ONLY(x) DISABLED_##x
+
+using bookmarks_helper::AddURL;
+using bookmarks_helper::AwaitAllModelsMatch;
+using bookmarks_helper::CountAllBookmarks;
+
+class TwoClientE2ETest : public SyncTest {
+ public:
+  TwoClientE2ETest() : SyncTest(TWO_CLIENT) {}
+  ~TwoClientE2ETest() override {}
+  virtual bool TestUsesSelfNotifications() override { return false; }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(TwoClientE2ETest);
+};
+
+IN_PROC_BROWSER_TEST_F(TwoClientE2ETest, E2E_ONLY(SanitySetup)) {
+  ASSERT_TRUE(SetupSync()) <<  "SetupSync() failed.";
+}
+
+IN_PROC_BROWSER_TEST_F(TwoClientE2ETest, E2E_ONLY(OneClientAddsBookmark)) {
+  DisableVerifier();

[Nicolas Zea, 2014/12/11 19:45:34]

Are we ever expecting to use the verifier in E2E tests? Should we have it
disabled by default (in the test fixture itself)?

[shadi, 2014/12/17 22:50:16]

So far I think a verifier is useless in the E2E setup. In theory, the verifier
is the second profile in these tests. I'll defer cleaning up verifier code to a
separate CL.

+  ASSERT_TRUE(SetupSync()) <<  "SetupSync() failed.";
+  // All profiles should sync same bookmarks.
+  ASSERT_TRUE(AwaitAllModelsMatch()) <<
+      "Initial bookmark models did not match for all profiles";
+  // For clean profiles, the bookmarks count should be zero. We are not
+  // enforcing this, we only check that the final count is equal to initial
+  // count plus new bookmarks count.
+  int init_bookmarks_count = CountAllBookmarks(0);
+
+  // Add one new bookmark to the first profile.
+  ASSERT_TRUE(
+      AddURL(0, "Google URL 0", GURL("http://www.google.com/0")) != NULL);
+
+  // Since the second profile is done running the sync cycle, we need to
+  // manually notify it to sync its bookmarks again.
+  // Wait few seconds for the first to have completed its commit.
+  base::OneShotTimer<TwoClientE2ETest> timer;
+  timer.Start(FROM_HERE,
+              base::TimeDelta::FromSeconds(5),

[Nicolas Zea, 2014/12/11 19:45:34]

Were you planning to try to add some logic to wait for an OnSyncCycleCompleted
event or something like that?

[shadi, 2014/12/17 22:50:16]

Yes. I ended up creating SyncRefresher. PTAL.

+              base::Bind(&bookmarks_helper::NotifyBookmarksSync, 1));
+
+  // Blocks and waits for bookmarks models in all profiles to match.
+  ASSERT_TRUE(AwaitAllModelsMatch());
+  // Check that total number of bookmarks is as expected.
+  for (int i = 0; i < num_clients(); ++i) {
+    ASSERT_EQ(CountAllBookmarks(i), init_bookmarks_count + 1) <<
+        "Total bookmark count is wrong.";
+  }
+}
+
+IN_PROC_BROWSER_TEST_F(TwoClientE2ETest, E2E_ONLY(TwoClientsAddBookmarks)) {
+  DisableVerifier();
+  ASSERT_TRUE(SetupSync()) <<  "SetupSync() failed.";
+  // ALl profiles should sync same bookmarks.
+  ASSERT_TRUE(AwaitAllModelsMatch()) <<
+      "Initial bookmark models did not match for all profiles";
+  // For clean profiles, the bookmarks count should be zero. We are not
+  // enforcing this, we only check that the final count is equal to initial
+  // count plus new bookmarks count.
+  int init_bookmarks_count = CountAllBookmarks(0);
+
+  // Add one new bookmark per profile.
+  for (int i = 0; i < num_clients(); ++i) {
+    ASSERT_TRUE(AddURL(i, base::StringPrintf("Google URL %d", i),
+        GURL(base::StringPrintf("http://www.google.com/%d", i))) != NULL);
+  }
+
+  // In some runs the profiles just sync bookmarks automatically after commit.
+  // The test would pass quickly. However, for most cases a sync cycle should be
+  // enforced to let the profile sync new bookmarks.
+  // Wait 5 seconds and notify profiles to sync bookmarks.
+  base::OneShotTimer<TwoClientE2ETest> timer;
+  timer.Start(FROM_HERE,
+              base::TimeDelta::FromSeconds(5),
+              base::Bind(&bookmarks_helper::NotifyBookmarksSyncToAllProfiles));
+
+  // Blocks and waits for bookmarks models in all profiles to match.
+  ASSERT_TRUE(AwaitAllModelsMatch());
+  // Check that total number of bookmarks is as expected.
+  for (int i = 0; i < num_clients(); ++i) {
+    ASSERT_EQ(CountAllBookmarks(i), init_bookmarks_count + num_clients()) <<
+        "Total bookmark count is wrong.";
+  }
+}