Added unit test for ServiceProcessPrefs

chrome/service/service_process_prefs_unittest.cc

+// Copyright (c) 2012 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 <string>
+
+#include "base/message_loop.h"
+#include "base/message_loop_proxy.h"
+#include "base/scoped_temp_dir.h"
+#include "chrome/service/service_process_prefs.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+class ServiceProcessPrefsTest : public testing::Test {
+ protected:
+  virtual void SetUp() {
+    message_loop_proxy_ = base::MessageLoopProxy::current();
+
+    ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
+
+    prefs_.reset(new ServiceProcessPrefs(
+        temp_dir_.path().AppendASCII("service_process_prefs.txt"),
+        message_loop_proxy_.get()));
+  }
+
+  // The path to temporary directory used to contain the test operations.
+  ScopedTempDir temp_dir_;
+  // A message loop that we can use as the file thread message loop.
+  MessageLoop message_loop_;
+  scoped_refptr<base::MessageLoopProxy> message_loop_proxy_;
+  scoped_ptr<ServiceProcessPrefs> prefs_;
+};
+
+// Test ability to retrieve prefs
+TEST_F(ServiceProcessPrefsTest, RetrievePrefs) {
+  prefs_->SetBoolean("testb", true);
+  prefs_->SetString("tests", "testvalue");
+  prefs_->WritePrefs();
+  MessageLoop::current()->RunAllPending();
+  prefs_->SetBoolean("testb", false);   // overwrite
+  prefs_->SetString("tests", "");   // overwrite
+  prefs_->ReadPrefs();
+  bool testb;
+  prefs_->GetBoolean("testb", &testb);
+  EXPECT_EQ(testb, true);
+  std::string tests;
+  prefs_->GetString("tests", &tests);
+  EXPECT_EQ(tests, "testvalue");
+}
+