Sync: Refactoring of DEVICE_INFO syncable type - Part 1

chrome/browser/sync/glue/local_device_info_provider_unittest.cc

+// 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/message_loop/message_loop.h"
+#include "base/run_loop.h"
+#include "chrome/browser/sync/glue/local_device_info_provider_impl.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace browser_sync {
+
+const char kLocalDeviceGuid[] = "foo";
+
+class LocalDeviceInfoProviderTest : public testing::Test {
+ public:
+  LocalDeviceInfoProviderTest()
+    : called_back_(false) {}
+  virtual ~LocalDeviceInfoProviderTest() {}
+
+  virtual void SetUp() OVERRIDE {
+    provider_.reset(new LocalDeviceInfoProviderImpl());
+  }
+
+  virtual void TearDown() OVERRIDE {
+    provider_.reset();
+    called_back_ = false;
+  }
+
+ protected:
+  void InitializeProvider(const std::string& guid) {
+    // Start initialization.
+    provider_->Initialize(guid);
+
+    // Subscribe to the notification and wait until the callback
+    // is called. The callback will quit the loop.
+    base::RunLoop run_loop;
+    scoped_ptr<LocalDeviceInfoProvider::Subscription> subscription(
+        provider_->RegisterOnInitializedCallback(
+            base::Bind(&LocalDeviceInfoProviderTest::QuitLoopOnInitialized,
+                       base::Unretained(this), &run_loop)));
+    run_loop.Run();
+  }
+
+  void QuitLoopOnInitialized(base::RunLoop* loop) {
+    called_back_ = true;
+    loop->Quit();
+  }
+
+  scoped_ptr<LocalDeviceInfoProviderImpl> provider_;
+
+  bool called_back_;
+
+ private:
+  base::MessageLoop message_loop_;
+};
+
+TEST_F(LocalDeviceInfoProviderTest, OnInitializedCallback) {
+  ASSERT_FALSE(called_back_);
+
+  InitializeProvider(kLocalDeviceGuid);
+  EXPECT_TRUE(called_back_);
+}
+
+TEST_F(LocalDeviceInfoProviderTest, GetLocalDeviceInfo) {
+  ASSERT_EQ(NULL, provider_->GetLocalDeviceInfo());
+
+  InitializeProvider(kLocalDeviceGuid);
+
+  const DeviceInfo* local_device_info = provider_->GetLocalDeviceInfo();
+  EXPECT_TRUE(!!local_device_info);
+  EXPECT_EQ(std::string(kLocalDeviceGuid), local_device_info->guid());
+}
+
+TEST_F(LocalDeviceInfoProviderTest, GetLocalSyncCacheGUID) {
+  ASSERT_EQ(std::string(), provider_->GetLocalSyncCacheGUID());
+
+  InitializeProvider(kLocalDeviceGuid);
+
+  EXPECT_EQ(std::string(kLocalDeviceGuid), provider_->GetLocalSyncCacheGUID());
+}
+
+}  // namespace browser_sync