ServiceWorker: Move worker candidate process knowledge to ServiceWorkerProcessManager.

content/browser/service_worker/service_worker_process_manager_unittest.cc

+// Copyright 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/basictypes.h"
+#include "content/browser/service_worker/service_worker_process_manager.h"
+#include "content/public/test/test_browser_thread_bundle.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "url/gurl.h"
+
+namespace content {
+
+class ServiceWorkerProcessManagerTest : public testing::Test {
+ public:
+   ServiceWorkerProcessManagerTest()
+      : thread_bundle_(TestBrowserThreadBundle::IO_MAINLOOP) {}
+
+  virtual void SetUp() OVERRIDE {
+    process_manager_.reset(new ServiceWorkerProcessManager(NULL));
+    scope_ = GURL("http://www.example.com/*");

[dominicc (has gone to gerrit), 2014/08/06 06:48:18]

Here too.

[xiang, 2014/08/11 04:50:55]

Done.

+  }
+
+  virtual void TearDown() OVERRIDE {
+    process_manager_.reset();
+  }
+
+ protected:
+  TestBrowserThreadBundle thread_bundle_;
+  scoped_ptr<ServiceWorkerProcessManager> process_manager_;
+  GURL scope_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ServiceWorkerProcessManagerTest);
+};
+
+TEST_F(ServiceWorkerProcessManagerTest, SortProcess) {
+  // Process 1 has 1 ref, 2 has 2 refs and 3 has 3 refs.
+  process_manager_->AddScopeProcessReference(scope_, 1);
+  process_manager_->AddScopeProcessReference(scope_, 2);
+  process_manager_->AddScopeProcessReference(scope_, 2);
+  process_manager_->AddScopeProcessReference(scope_, 3);
+  process_manager_->AddScopeProcessReference(scope_, 3);
+  process_manager_->AddScopeProcessReference(scope_, 3);
+
+  // Process 3 has the biggest # of references and it should be chosen.

[dominicc (has gone to gerrit), 2014/08/06 06:48:18]

The test would be more discriminative if the output order isn't consecutive by
PID and there's not a 1:1 mapping between PIDs and refs. This will let the test
detect if these were ever mixed up.

[xiang, 2014/08/11 04:50:55]

Done.

+  EXPECT_THAT(process_manager_->SortProcessesForScope(scope_),
+              testing::ElementsAre(3, 2, 1));
+
+  // Pending processes will be added with lowest priority and will only be
+  // added once.
+  process_manager_->SetProcessIdForTest(4);
+  std::vector<int> registering_processes;
+  registering_processes.push_back(1);
+  registering_processes.push_back(1);
+  registering_processes.push_back(4);
+  registering_processes.push_back(4);
+  process_manager_->AddScopePendingProcesses(scope_, registering_processes);
+  // Scores for processes 1, 2, 3  are not change, process 4's score is 0.
+  EXPECT_THAT(process_manager_->SortProcessesForScope(scope_),
+              testing::ElementsAre(3, 2, 1, 4));
+}
+
+}  // namespace content