Elevated install of recovery component (component update part)

chrome/browser/component_updater/test/component_unpacker_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/bind.h"
+#include "base/file_util.h"
+#include "base/files/file_path.h"
+#include "base/files/scoped_temp_dir.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/path_service.h"
+#include "base/threading/sequenced_worker_pool.h"
+#include "chrome/browser/component_updater/component_unpacker.h"
+#include "chrome/browser/component_updater/default_component_installer.h"
+#include "chrome/common/chrome_paths.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/test/test_browser_thread_bundle.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using content::BrowserThread;
+
+namespace component_updater {
+
+namespace {
+
+const uint8 kTestComponentSha2Hash[] = {
+    0x0d, 0x0e, 0x0a, 0x9b, 0x28, 0x3a, 0x9b, 0x0c,
+    0xba, 0x22, 0x4b, 0x29, 0x12, 0xf3, 0x9e, 0x2c,
+    0x88, 0x7a, 0x71, 0x4b, 0x0a, 0x7c, 0x80, 0x1c,
+    0xcc, 0x29, 0x7c, 0x0a, 0x5f, 0xea, 0x67, 0xb7
+};
+
+base::FilePath test_file(const char* file) {
+  base::FilePath path;
+  PathService::Get(chrome::DIR_TEST_DATA, &path);
+  return path.AppendASCII("components").AppendASCII(file);
+}
+
+class DummyComponentInstallerTraits : public ComponentInstallerTraits {
+ public:
+  virtual bool VerifyInstallation(const base::FilePath& dir) const OVERRIDE {
+    return true;
+  }
+
+  virtual bool CanAutoUpdate() const OVERRIDE {
+    return false;
+  }
+
+  virtual bool OnCustomInstall(const base::DictionaryValue& manifest,
+                               const base::FilePath& install_dir) OVERRIDE {
+    return true;
+  }
+
+  virtual void ComponentReady(
+      const base::Version& version,
+      const base::FilePath& install_dir,
+      scoped_ptr<base::DictionaryValue> manifest) OVERRIDE {
+  }
+
+  virtual base::FilePath GetBaseDirectory() const OVERRIDE {
+    return base::FilePath();
+  }
+
+  virtual void GetHash(std::vector<uint8>* hash) const OVERRIDE {
+  }
+
+  virtual std::string GetName() const OVERRIDE {
+    return "dummy component.";
+  }
+};
+
+}  // namespace
+
+class ComponentUnpackerTest : public testing::Test {
+ public:
+  ComponentUnpackerTest();
+  virtual ~ComponentUnpackerTest();
+
+  bool SaveInstallSource(scoped_refptr<ComponentUnpacker> unpacker,
+                         const base::FilePath& backup_path) const {
+    return unpacker->SaveInstallSource(backup_path);
+  }
+
+  bool DoUnpackersMatch(scoped_refptr<ComponentUnpacker> unpacker1,
+                        scoped_refptr<ComponentUnpacker> unpacker2) const {
+    return base::ContentsEqual(unpacker1->path_, unpacker2->path_) &&
+           unpacker1->fingerprint_ == unpacker2->fingerprint_ &&
+           unpacker1->in_process_ == unpacker2->in_process_ &&
+           std::equal(unpacker1->pk_hash_.begin(), unpacker1->pk_hash_.end(),
+                      &unpacker2->pk_hash_[0]);
+  }
+
+ protected:
+  scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_;
+
+ private:
+};
+
+ComponentUnpackerTest::ComponentUnpackerTest()
+    : blocking_task_runner_(BrowserThread::GetBlockingPool()->
+          GetSequencedTaskRunnerWithShutdownBehavior(
+              BrowserThread::GetBlockingPool()->GetSequenceToken(),
+              base::SequencedWorkerPool::SKIP_ON_SHUTDOWN)) {
+}
+
+ComponentUnpackerTest::~ComponentUnpackerTest() {
+}
+
+TEST_F(ComponentUnpackerTest, BackupAndReload) {
+  const std::string kFingerprint = "Test Fingerprint XYZ";
+  const bool kIsInProcess = true;
+
+  scoped_ptr<ComponentInstallerTraits> dummy_installer_traits(
+      new DummyComponentInstallerTraits);
+  scoped_ptr<ComponentInstaller> dummy_installer(
+      new DefaultComponentInstaller(dummy_installer_traits.Pass()));
+
+  std::vector<uint8> pk_hash;
+  pk_hash.assign(kTestComponentSha2Hash,
+                 &kTestComponentSha2Hash[sizeof(kTestComponentSha2Hash)]);
+
+  base::ScopedTempDir backup_dir;
+  EXPECT_TRUE(backup_dir.CreateUniqueTempDir());
+  scoped_refptr<ComponentUnpacker> unpacker = new ComponentUnpacker(
+      pk_hash,
+      test_file("jebgalgnebhfojomionfpkfelancnnkf.crx"),
+      kFingerprint,
+      dummy_installer.get(),
+      kIsInProcess,
+      blocking_task_runner_);
+  EXPECT_TRUE(SaveInstallSource(unpacker, backup_dir.path()));
+
+  scoped_refptr<ComponentUnpacker> recreated_unpacker(
+      ComponentUnpacker::CreateFromBackup(backup_dir.path(),
+                                          dummy_installer.get(),
+                                          blocking_task_runner_));
+
+  EXPECT_TRUE(DoUnpackersMatch(unpacker, recreated_unpacker));
+}
+
+}  // namespace component_updater
+