Modularize Compact Language Detector 2 (CLD2) data sources

chrome/browser/component_updater/test/cld_component_installer_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 <vector>
 
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
+#include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/run_loop.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "base/version.h"
 #include "chrome/browser/component_updater/cld_component_installer.h"
-#include "chrome/common/chrome_constants.h"
-#include "chrome/common/chrome_paths.h"
+#include "components/translate/content/browser/data_file_browser_cld_data_provider.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/platform_test.h"
 
+namespace {
+// This has to match what's in cld_component_installer.cc.
+const base::FilePath::CharType kTestCldDataFileName[] =
+    FILE_PATH_LITERAL("cld2_data.bin");
+}  // namespace
+
 namespace component_updater {
 
 class CldComponentInstallerTest : public PlatformTest {
  public:
+  CldComponentInstallerTest() {}
   virtual void SetUp() OVERRIDE {
     PlatformTest::SetUp();
 
     // ScopedTempDir automatically does a recursive delete on the entire
     // directory in its destructor, so no cleanup is required in TearDown.
     // Note that all files created by this test case are created within the
     // directory that is created here, so even though they are not explicitly
     // created *as temp files*, they will still get cleaned up automagically.
     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
 
     // The "latest CLD data file" is a static piece of information, and thus
     // for correctness we empty it before each test.
-    traits.SetLatestCldDataFile(base::FilePath());
+    component_updater::CldComponentInstallerTraits::SetLatestCldDataFile(
+        base::FilePath());
+    base::FilePath path_now =
+        translate::DataFileBrowserCldDataProvider::GetCldDataFilePath();
+    ASSERT_TRUE(path_now.empty());
   }
 
+ protected:
   base::ScopedTempDir temp_dir_;
-  component_updater::CldComponentInstallerTraits traits;
+  component_updater::CldComponentInstallerTraits traits_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(CldComponentInstallerTest);
 };
 
 TEST_F(CldComponentInstallerTest, SetLatestCldDataFile) {
-  ASSERT_TRUE(component_updater::GetLatestCldDataFile().empty());
   const base::FilePath expected(FILE_PATH_LITERAL("test/foo.test"));
-  traits.SetLatestCldDataFile(expected);
-
-  base::FilePath result = component_updater::GetLatestCldDataFile();
+  component_updater::CldComponentInstallerTraits::SetLatestCldDataFile(
+      expected);
+  base::FilePath result =
+      translate::DataFileBrowserCldDataProvider::GetCldDataFilePath();
   ASSERT_EQ(expected, result);
 }
 
 TEST_F(CldComponentInstallerTest, VerifyInstallation) {
   // All files are created within a ScopedTempDir, which deletes all
   // children when its destructor is called (at the end of each test).
-  ASSERT_FALSE(traits.VerifyInstallation(temp_dir_.path()));
+  ASSERT_FALSE(traits_.VerifyInstallation(temp_dir_.path()));
   const base::FilePath data_file_dir =
       temp_dir_.path().Append(FILE_PATH_LITERAL("_platform_specific")).Append(
           FILE_PATH_LITERAL("all"));
   ASSERT_TRUE(base::CreateDirectory(data_file_dir));
-  const base::FilePath data_file =
-      data_file_dir.Append(chrome::kCLDDataFilename);
+  const base::FilePath data_file = data_file_dir.Append(kTestCldDataFileName);
   const std::string test_data("fake cld2 data file content here :)");
   ASSERT_EQ(static_cast<int32>(test_data.length()),
             base::WriteFile(data_file, test_data.c_str(), test_data.length()));
-  ASSERT_TRUE(traits.VerifyInstallation(temp_dir_.path()));
+  ASSERT_TRUE(traits_.VerifyInstallation(temp_dir_.path()));
 }
 
 TEST_F(CldComponentInstallerTest, OnCustomInstall) {
   const base::DictionaryValue manifest;
   const base::FilePath install_dir;
   // Sanity: shouldn't crash.
-  ASSERT_TRUE(traits.OnCustomInstall(manifest, install_dir));
+  ASSERT_TRUE(traits_.OnCustomInstall(manifest, install_dir));
 }
 
 TEST_F(CldComponentInstallerTest, GetInstalledPath) {
   const base::FilePath base_dir;
   const base::FilePath result =
       CldComponentInstallerTraits::GetInstalledPath(base_dir);
-  ASSERT_TRUE(EndsWith(result.value(), chrome::kCLDDataFilename, true));
+  ASSERT_TRUE(EndsWith(result.value(), kTestCldDataFileName, true));
 }
 
 TEST_F(CldComponentInstallerTest, GetBaseDirectory) {
-  const base::FilePath result = traits.GetBaseDirectory();
+  const base::FilePath result = traits_.GetBaseDirectory();
   ASSERT_FALSE(result.empty());
 }
 
 TEST_F(CldComponentInstallerTest, GetHash) {
   std::vector<uint8> hash;
-  traits.GetHash(&hash);
+  traits_.GetHash(&hash);
   ASSERT_EQ(static_cast<size_t>(32), hash.size());
 }
 
 TEST_F(CldComponentInstallerTest, GetName) {
-  ASSERT_FALSE(traits.GetName().empty());
+  ASSERT_FALSE(traits_.GetName().empty());
 }
 
 TEST_F(CldComponentInstallerTest, ComponentReady) {
   scoped_ptr<base::DictionaryValue> manifest;
   const base::FilePath install_dir(FILE_PATH_LITERAL("/foo"));
   const base::Version version("1.2.3.4");
-  traits.ComponentReady(version, install_dir, manifest.Pass());
-  base::FilePath result = component_updater::GetLatestCldDataFile();
+  traits_.ComponentReady(version, install_dir, manifest.Pass());
+  base::FilePath result =
+      translate::DataFileBrowserCldDataProvider::GetCldDataFilePath();
   ASSERT_TRUE(StartsWith(result.AsUTF16Unsafe(),
                          install_dir.AsUTF16Unsafe(),
                          true));
-  ASSERT_TRUE(EndsWith(result.value(), chrome::kCLDDataFilename, true));
+  ASSERT_TRUE(EndsWith(result.value(), kTestCldDataFileName, true));
 }
 
 }  // namespace component_updater