Media Galleries API: hookup the AllGalleries permission and add tests.

chrome/browser/extensions/api/media_galleries/media_galleries_apitest.cc

 // 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.
 
 #include "base/command_line.h"
+#include "base/file_path.h"
+#include "base/file_util.h"
+#include "base/path_service.h"
+#include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/platform_app_browsertest_util.h"
+#include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 
+#if defined(OS_LINUX)
+#include <fstream>
+
+#include "base/environment.h"
+#include "base/scoped_temp_dir.h"
+#endif
+
 namespace {
 
-class MediaGalleriesApiTest: public PlatformAppBrowserTest {
+class ExperimentalMediaGalleriesApiTest : public ExtensionApiTest {
  public:
   virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
-    PlatformAppBrowserTest::SetUpCommandLine(command_line);
+    ExtensionApiTest::SetUpCommandLine(command_line);
     command_line->AppendSwitch(switches::kEnableExperimentalExtensionApis);
   }
 };
 
+class EnsurePictureDirectoryExists {
+ public:
+  EnsurePictureDirectoryExists() {
+    Init();
+  }
+
+ private:
+  void Init() {
+#if defined(OS_CHROMEOS) || defined(OS_ANDROID)
+    return;
+#elif defined(OS_LINUX)
+    // On Linux, the picture directory probably doesn't exist by default,
+    // so we override the settings to point to a tempdir.
+    ASSERT_TRUE(xdg_dir_.CreateUniqueTempDir());
+
+    FilePath config_file(xdg_dir_.path().Append("user-dirs.dirs"));
+    std::ofstream file;
+    file.open(config_file.value().c_str());
+    ASSERT_TRUE(file.is_open());
+    file << "XDG_PICTURES_DIR=\"" << xdg_dir_.path().value() << "\"";
+    file.close();
+
+    scoped_ptr<base::Environment> env(base::Environment::Create());
+    env->SetVar("XDG_CONFIG_HOME", xdg_dir_.path().value());
+#else
+    FilePath pictures_path;
+    ASSERT_TRUE(PathService::Get(chrome::DIR_USER_PICTURES, &pictures_path));
+    ASSERT_TRUE(file_util::DirectoryExists(pictures_path));
+#endif
+  }
+
+#if defined(OS_LINUX)
+  ScopedTempDir xdg_dir_;
+#endif
+};
+
+
 }  // namespace
 
-IN_PROC_BROWSER_TEST_F(MediaGalleriesApiTest, MediaGalleries) {
-  ASSERT_TRUE(RunPlatformAppTest("api_test/media_galleries")) << message_;
+IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest, NoGalleries) {
+  ASSERT_TRUE(RunPlatformAppTest("api_test/media_galleries/no_galleries"))
+      << message_;
 }
+
+IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest, MediaGalleriesRead) {
+  EnsurePictureDirectoryExists picture_directory;
+  ASSERT_TRUE(RunPlatformAppTest("api_test/media_galleries/read_access"))
+      << message_;
+}
+
+IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest, MediaGalleriesNoAccess) {
+  EnsurePictureDirectoryExists picture_directory;
+  ASSERT_TRUE(RunPlatformAppTest("api_test/media_galleries/no_access"))
+      << message_;
+}
+
+IN_PROC_BROWSER_TEST_F(ExperimentalMediaGalleriesApiTest,
+                       ExperimentalMediaGalleries) {
+  ASSERT_TRUE(RunExtensionTest("media_galleries/experimental")) << message_;
+}