[Mac] Make app shims load the same framework version as the running Chrome process.

chrome/common/mac/app_mode_chrome_locator_unittest.mm

 // 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.
 
 #import "chrome/common/mac/app_mode_chrome_locator.h"
 
 #include <CoreFoundation/CoreFoundation.h>
 
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/path_service.h"
 #include "chrome/common/chrome_constants.h"
+#include "chrome/common/chrome_version_info.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
 
 // Return the path to the Chrome/Chromium app bundle compiled along with the
 // test executable.
 void GetChromeBundlePath(base::FilePath* chrome_bundle) {
   base::FilePath path;
   PathService::Get(base::DIR_EXE, &path);
   path = path.Append(chrome::kBrowserProcessExecutableNameChromium);
@@ skipping 13 matching lines @@
 TEST(ChromeLocatorTest, FindNonExistentBundle) {
   base::FilePath dummy;
   EXPECT_FALSE(app_mode::FindBundleById(@"this.doesnt.exist", &dummy));
 }
 
 TEST(ChromeLocatorTest, GetNonExistentBundleInfo) {
   base::ScopedTempDir temp_dir;
   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
 
   base::FilePath executable_path;
-  base::string16 raw_version;
   base::FilePath version_path;
   base::FilePath framework_path;
   EXPECT_FALSE(app_mode::GetChromeBundleInfo(temp_dir.path(),
-      &executable_path, &raw_version, &version_path, &framework_path));
+                                             std::string(),
+                                             &executable_path,
+                                             &version_path,
+                                             &framework_path));
 }
 
 TEST(ChromeLocatorTest, GetChromeBundleInfo) {
-  using app_mode::GetChromeBundleInfo;
-
   base::FilePath chrome_bundle_path;
   GetChromeBundlePath(&chrome_bundle_path);
   ASSERT_TRUE(base::DirectoryExists(chrome_bundle_path));
 
   base::FilePath executable_path;
-  base::string16 raw_version;
   base::FilePath version_path;
   base::FilePath framework_path;
-  EXPECT_TRUE(GetChromeBundleInfo(chrome_bundle_path,
-      &executable_path, &raw_version, &version_path, &framework_path));
+  EXPECT_TRUE(app_mode::GetChromeBundleInfo(chrome_bundle_path,
+                                            std::string(),
+                                            &executable_path,
+                                            &version_path,
+                                            &framework_path));
   EXPECT_TRUE(base::PathExists(executable_path));
-  EXPECT_GT(raw_version.size(), 0U);
   EXPECT_TRUE(base::DirectoryExists(version_path));
   EXPECT_TRUE(base::PathExists(framework_path));
 }
+
+TEST(ChromeLocatorTest, GetChromeBundleInfoWithLatestVersion) {
+  base::FilePath chrome_bundle_path;
+  GetChromeBundlePath(&chrome_bundle_path);
+  ASSERT_TRUE(base::DirectoryExists(chrome_bundle_path));
+
+  base::FilePath executable_path;
+  base::FilePath version_path;
+  base::FilePath framework_path;
+  EXPECT_TRUE(app_mode::GetChromeBundleInfo(chrome_bundle_path,
+                                            chrome::VersionInfo().Version(),
+                                            &executable_path,
+                                            &version_path,
+                                            &framework_path));
+  EXPECT_TRUE(base::PathExists(executable_path));
+  EXPECT_TRUE(base::DirectoryExists(version_path));
+  EXPECT_TRUE(base::PathExists(framework_path));
+}
+
+TEST(ChromeLocatorTest, GetChromeBundleInfoWithInvalidVersion) {
+  base::FilePath chrome_bundle_path;
+  GetChromeBundlePath(&chrome_bundle_path);
+  ASSERT_TRUE(base::DirectoryExists(chrome_bundle_path));
+
+  base::FilePath executable_path;
+  base::FilePath version_path;
+  base::FilePath framework_path;
+  // This still passes because it should default to the latest version.
+  EXPECT_TRUE(app_mode::GetChromeBundleInfo(chrome_bundle_path,
+                                            std::string("invalid_version"),
+                                            &executable_path,
+                                            &version_path,
+                                            &framework_path));
+  EXPECT_TRUE(base::PathExists(executable_path));
+  EXPECT_TRUE(base::DirectoryExists(version_path));
+  EXPECT_TRUE(base::PathExists(framework_path));
+}
+
+TEST(ChromeLocatorTest, GetChromeBundleInfoWithPreviousVersion) {
+  base::FilePath chrome_bundle_path;
+  GetChromeBundlePath(&chrome_bundle_path);
+  ASSERT_TRUE(base::DirectoryExists(chrome_bundle_path));
+
+  // Make a symlink that pretends to be a previous version.
+  base::FilePath fake_version_directory = chrome_bundle_path.Append("Contents")
+                                              .Append("Versions")
+                                              .Append("previous_version");
+  EXPECT_TRUE(base::CreateSymbolicLink(
+      base::FilePath(chrome::VersionInfo().Version()), fake_version_directory));
+
+  base::FilePath executable_path;
+  base::FilePath version_path;
+  base::FilePath framework_path;
+  EXPECT_TRUE(app_mode::GetChromeBundleInfo(chrome_bundle_path,
+                                            std::string("previous_version"),
+                                            &executable_path,
+                                            &version_path,
+                                            &framework_path));
+  EXPECT_TRUE(base::PathExists(executable_path));
+  EXPECT_TRUE(base::DirectoryExists(version_path));
+  EXPECT_TRUE(base::PathExists(framework_path));
+
+  base::DeleteFile(fake_version_directory, false);
+}