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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "base/message_loop/message_loop.h"
      6 #include "base/path_service.h"
      7 #include "content/public/test/test_browser_thread.h"
      8 #include "extensions/browser/info_map.h"
      9 #include "extensions/common/extension.h"
     10 #include "extensions/common/extension_paths.h"
     11 #include "extensions/common/manifest_constants.h"
     12 #include "testing/gtest/include/gtest/gtest.h"
     13 
     14 using content::BrowserThread;
     15 
     16 namespace keys = extensions::manifest_keys;
     17 
     18 namespace extensions {
     19 
     20 class InfoMapTest : public testing::Test {
     21  public:
     22   InfoMapTest()
     23       : ui_thread_(BrowserThread::UI, &message_loop_),
     24         io_thread_(BrowserThread::IO, &message_loop_) {}
     25 
     26  private:
     27   base::MessageLoop message_loop_;
     28   content::TestBrowserThread ui_thread_;
     29   content::TestBrowserThread io_thread_;
     30 };
     31 
     32 // Returns a barebones test Extension object with the given name.
     33 static scoped_refptr<Extension> CreateExtension(const std::string& name) {
     34   base::FilePath path;
     35   PathService::Get(DIR_TEST_DATA, &path);
     36 
     37   base::DictionaryValue manifest;
     38   manifest.SetString(keys::kVersion, "1.0.0.0");
     39   manifest.SetString(keys::kName, name);
     40 
     41   std::string error;
     42   scoped_refptr<Extension> extension =
     43       Extension::Create(path.AppendASCII(name),
     44                         Manifest::INVALID_LOCATION,
     45                         manifest,
     46                         Extension::NO_FLAGS,
     47                         &error);
     48   EXPECT_TRUE(extension.get()) << error;
     49 
     50   return extension;
     51 }
     52 
     53 // Test that the InfoMap handles refcounting properly.
     54 TEST_F(InfoMapTest, RefCounting) {
     55   scoped_refptr<InfoMap> info_map(new InfoMap());
     56 
     57   // New extensions should have a single reference holding onto them.
     58   scoped_refptr<Extension> extension1(CreateExtension("extension1"));
     59   scoped_refptr<Extension> extension2(CreateExtension("extension2"));
     60   scoped_refptr<Extension> extension3(CreateExtension("extension3"));
     61   EXPECT_TRUE(extension1->HasOneRef());
     62   EXPECT_TRUE(extension2->HasOneRef());
     63   EXPECT_TRUE(extension3->HasOneRef());
     64 
     65   // Add a ref to each extension and give it to the info map.
     66   info_map->AddExtension(extension1.get(), base::Time(), false, false);
     67   info_map->AddExtension(extension2.get(), base::Time(), false, false);
     68   info_map->AddExtension(extension3.get(), base::Time(), false, false);
     69 
     70   // Release extension1, and the info map should have the only ref.
     71   const Extension* weak_extension1 = extension1.get();
     72   extension1 = NULL;
     73   EXPECT_TRUE(weak_extension1->HasOneRef());
     74 
     75   // Remove extension2, and the extension2 object should have the only ref.
     76   info_map->RemoveExtension(
     77       extension2->id(), extensions::UnloadedExtensionInfo::REASON_UNINSTALL);
     78   EXPECT_TRUE(extension2->HasOneRef());
     79 
     80   // Delete the info map, and the extension3 object should have the only ref.
     81   info_map = NULL;
     82   EXPECT_TRUE(extension3->HasOneRef());
     83 }
     84 
     85 // Tests that we can query a few extension properties from the InfoMap.
     86 TEST_F(InfoMapTest, Properties) {
     87   scoped_refptr<InfoMap> info_map(new InfoMap());
     88 
     89   scoped_refptr<Extension> extension1(CreateExtension("extension1"));
     90   scoped_refptr<Extension> extension2(CreateExtension("extension2"));
     91 
     92   info_map->AddExtension(extension1.get(), base::Time(), false, false);
     93   info_map->AddExtension(extension2.get(), base::Time(), false, false);
     94 
     95   EXPECT_EQ(2u, info_map->extensions().size());
     96   EXPECT_EQ(extension1.get(), info_map->extensions().GetByID(extension1->id()));
     97   EXPECT_EQ(extension2.get(), info_map->extensions().GetByID(extension2->id()));
     98 }
     99 
    100 // Tests that extension URLs are properly mapped to local file paths.
    101 TEST_F(InfoMapTest, MapUrlToLocalFilePath) {
    102   scoped_refptr<InfoMap> info_map(new InfoMap());
    103   scoped_refptr<Extension> app(CreateExtension("platform_app"));
    104   info_map->AddExtension(app.get(), base::Time(), false, false);
    105 
    106   // Non-extension URLs don't map to anything.
    107   base::FilePath non_extension_path;
    108   GURL non_extension_url("http://not-an-extension.com/");
    109   EXPECT_FALSE(info_map->MapUrlToLocalFilePath(
    110       non_extension_url, false, &non_extension_path));
    111   EXPECT_TRUE(non_extension_path.empty());
    112 
    113   // Valid resources return a valid path.
    114   base::FilePath valid_path;
    115   GURL valid_url = app->GetResourceURL("manifest.json");
    116   EXPECT_TRUE(info_map->MapUrlToLocalFilePath(
    117       valid_url, true /* use_blocking_api */, &valid_path));
    118   EXPECT_FALSE(valid_path.empty());
    119 
    120   // A file must exist to be mapped to a path using the blocking API.
    121   base::FilePath does_not_exist_path;
    122   GURL does_not_exist_url = app->GetResourceURL("does-not-exist.html");
    123   EXPECT_FALSE(info_map->MapUrlToLocalFilePath(
    124       does_not_exist_url, true /* use_blocking_api */, &does_not_exist_path));
    125   EXPECT_TRUE(does_not_exist_path.empty());
    126 
    127   // A file does not need to exist to be mapped to a path with the non-blocking
    128   // API. This avoids hitting the disk to see if it exists.
    129   EXPECT_TRUE(info_map->MapUrlToLocalFilePath(
    130       does_not_exist_url, false /* use_blocking_api */, &does_not_exist_path));
    131   EXPECT_FALSE(does_not_exist_path.empty());
    132 }
    133 
    134 }  // namespace extensions
    135