Implement a test for DefaultComponentInstallerTest

components/component_updater/default_component_installer_unittest.cc

Index: components/component_updater/default_component_installer_unittest.cc
diff --git a/components/component_updater/default_component_installer_unittest.cc b/components/component_updater/default_component_installer_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..63038f07afa4f289bedd9a7939a0a973f4ac6501
--- /dev/null
+++ b/components/component_updater/default_component_installer_unittest.cc
@@ -0,0 +1,216 @@
+// Copyright 2016 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 <iterator>
+#include <string>
+#include <vector>
+
+#include "base/callback.h"
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "base/message_loop/message_loop.h"
+#include "base/run_loop.h"
+#include "base/test/sequenced_worker_pool_owner.h"
+#include "base/version.h"
+#include "components/component_updater/component_updater_service.h"
+#include "components/component_updater/component_updater_service_internal.h"
+#include "components/component_updater/default_component_installer.h"
+#include "components/update_client/crx_update_item.h"
+#include "components/update_client/test_configurator.h"
+#include "components/update_client/update_client.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using Configurator = update_client::Configurator;
+using CrxUpdateItem = update_client::CrxUpdateItem;
+using TestConfigurator = update_client::TestConfigurator;
+using UpdateClient = update_client::UpdateClient;
+
+using ::testing::_;
+using ::testing::Invoke;
+
+namespace component_updater {
+
+namespace {
+
+// This hash corresponds to jebgalgnebhfojomionfpkfelancnnkf.crx.
+const uint8_t kSha256Hash[] = {0x94, 0x16, 0x0b, 0x6d, 0x41, 0x75, 0xe9, 0xec,
+                               0x8e, 0xd5, 0xfa, 0x54, 0xb0, 0xd2, 0xdd, 0xa5,
+                               0x6e, 0x05, 0x6b, 0xe8, 0x73, 0x47, 0xf6, 0xc4,
+                               0x11, 0x9f, 0xbc, 0xb3, 0x09, 0xb3, 0x5b, 0x40};
+
+class MockUpdateClient : public UpdateClient {
+ public:
+  MockUpdateClient() {};
+  MOCK_METHOD1(AddObserver, void(Observer* observer));
+  MOCK_METHOD1(RemoveObserver, void(Observer* observer));
+  MOCK_METHOD3(Install,
+               void(const std::string& id,
+                    const CrxDataCallback& crx_data_callback,
+                    const CompletionCallback& completion_callback));
+  MOCK_METHOD3(Update,
+               void(const std::vector<std::string>& ids,
+                    const CrxDataCallback& crx_data_callback,
+                    const CompletionCallback& completion_callback));
+  MOCK_CONST_METHOD2(GetCrxUpdateState,
+                     bool(const std::string& id, CrxUpdateItem* update_item));
+  MOCK_CONST_METHOD1(IsUpdating, bool(const std::string& id));
+  MOCK_METHOD0(Stop, void());
+  MOCK_METHOD3(SendUninstallPing,
+               void(const std::string& id, const Version& version, int reason));
+
+ private:
+  ~MockUpdateClient() override {};
+};
+
+class FakeInstallerTraits : public ComponentInstallerTraits {
+ public:
+  ~FakeInstallerTraits() override {}
+
+  bool VerifyInstallation(const base::DictionaryValue& manifest,
+                          const base::FilePath& dir) const override {
+    return true;
+  }
+
+  bool CanAutoUpdate() const override { return true; }
+
+  bool RequiresNetworkEncryption() const override { return true; }
+
+  bool OnCustomInstall(const base::DictionaryValue& manifest,
+                       const base::FilePath& install_dir) override {
+    return true;
+  }
+
+  void ComponentReady(
+      const base::Version& version,
+      const base::FilePath& install_dir,
+      std::unique_ptr<base::DictionaryValue> manifest) override {}
+
+  base::FilePath GetRelativeInstallDir() const override {
+    return base::FilePath(FILE_PATH_LITERAL("fake"));
+  }
+
+  void GetHash(std::vector<uint8_t>* hash) const override { GetPkHash(hash); }
+
+  std::string GetName() const override { return "fake name"; }
+
+  std::string GetAp() const override { return "fake-ap"; }
+
+ private:
+  static void GetPkHash(std::vector<uint8_t>* hash) {
+    hash->assign(std::begin(kSha256Hash), std::end(kSha256Hash));
+  }
+};
+
+class DefaultComponentInstallerTest : public testing::Test {
+ public:
+  DefaultComponentInstallerTest();
+  ~DefaultComponentInstallerTest() override;
+
+  MockUpdateClient& update_client() { return *update_client_; }
+  ComponentUpdateService* component_updater() {
+    return component_updater_.get();
+  }
+  scoped_refptr<TestConfigurator> configurator() const { return config_; }
+  base::Closure quit_closure() const { return quit_closure_; }
+
+ protected:
+  void RunThreads();
+
+ private:
+  static const int kNumWorkerThreads_ = 1;
+
+  base::MessageLoopForUI message_loop_;
+  base::RunLoop runloop_;
+  base::Closure quit_closure_;
+
+  std::unique_ptr<base::SequencedWorkerPoolOwner> worker_pool_;
+
+  scoped_refptr<TestConfigurator> config_;
+  scoped_refptr<MockUpdateClient> update_client_;
+  std::unique_ptr<ComponentUpdateService> component_updater_;
+};
+
+DefaultComponentInstallerTest::DefaultComponentInstallerTest()
+    : worker_pool_(
+          new base::SequencedWorkerPoolOwner(kNumWorkerThreads_, "test")) {
+  quit_closure_ = runloop_.QuitClosure();
+
+  auto pool = worker_pool_->pool();
+  config_ = new TestConfigurator(
+      pool->GetSequencedTaskRunner(pool->GetSequenceToken()),
+      message_loop_.task_runner());
+
+  update_client_ = new MockUpdateClient();
+  EXPECT_CALL(update_client(), AddObserver(_)).Times(1);
+  component_updater_.reset(new CrxUpdateService(config_, update_client_));
+}
+
+DefaultComponentInstallerTest::~DefaultComponentInstallerTest() {
+  EXPECT_CALL(update_client(), RemoveObserver(_)).Times(1);
+  component_updater_.reset();
+}
+
+void DefaultComponentInstallerTest::RunThreads() {
+  runloop_.Run();
+}
+
+}  // namespace
+
+// Tests that the component metadata is propagated from the default
+// component installer and its component traits, through the instance of the
+// CrxComponent, to the component updater service.
+TEST_F(DefaultComponentInstallerTest, RegisterComponent) {
+  class LoopHandler {
+   public:
+    LoopHandler(int max_cnt, const base::Closure& quit_closure)
+        : max_cnt_(max_cnt), quit_closure_(quit_closure) {}
+
+    void OnUpdate(const std::vector<std::string>& ids,
+                  const UpdateClient::CrxDataCallback& crx_data_callback,
+                  const UpdateClient::CompletionCallback& completion_callback) {
+      completion_callback.Run(0);
+      static int cnt = 0;
+      ++cnt;
+      if (cnt >= max_cnt_)
+        quit_closure_.Run();
+    }
+
+   private:
+    const int max_cnt_;
+    base::Closure quit_closure_;
+  };
+
+  const std::string id("jebgalgnebhfojomionfpkfelancnnkf");
+
+  // Quit after one update check has been fired.
+  LoopHandler loop_handler(1, quit_closure());
+  EXPECT_CALL(update_client(), Update(_, _, _))
+      .WillRepeatedly(Invoke(&loop_handler, &LoopHandler::OnUpdate));
+
+  EXPECT_CALL(update_client(), GetCrxUpdateState(id, _)).Times(1);
+  EXPECT_CALL(update_client(), Stop()).Times(1);
+
+  std::unique_ptr<ComponentInstallerTraits> traits(new FakeInstallerTraits());
+
+  DefaultComponentInstaller* installer =
+      new DefaultComponentInstaller(std::move(traits));
+  installer->Register(component_updater(), base::Closure());
+
+  RunThreads();
+
+  CrxUpdateItem item;
+  EXPECT_TRUE(component_updater()->GetComponentDetails(id, &item));
+  const CrxComponent& component(item.component);
+  EXPECT_EQ(
+      std::vector<uint8_t>(std::begin(kSha256Hash), std::end(kSha256Hash)),
+      component.pk_hash);
+  EXPECT_EQ(base::Version("0.0.0.0"), component.version);
+  EXPECT_TRUE(component.fingerprint.empty());
+  EXPECT_STREQ("fake name", component.name.c_str());
+  EXPECT_STREQ("fake-ap", component.ap.c_str());
+  EXPECT_TRUE(component.requires_network_encryption);
+}
+
+}  // namespace component_updater