gdata: Support mounting archive files in GData cache.

chrome/browser/chromeos/gdata/gdata_file_system_unittest.cc

Index: chrome/browser/chromeos/gdata/gdata_file_system_unittest.cc
diff --git a/chrome/browser/chromeos/gdata/gdata_file_system_unittest.cc b/chrome/browser/chromeos/gdata/gdata_file_system_unittest.cc
index 339d6a501f13a82bef6c9a81beb38225cd69dc7e..5c3d653ea3fd5dffac20713b08d7c1792ef8cd13 100644
--- a/chrome/browser/chromeos/gdata/gdata_file_system_unittest.cc
+++ b/chrome/browser/chromeos/gdata/gdata_file_system_unittest.cc
@@ -638,6 +638,42 @@ class GDataFileSystemTest : public testing::Test {
     RunAllPendingForIO();
   }
 
+  void VerifySetMountedState(const std::string& resource_id,
+                             const std::string& md5,
+                             bool to_mount,
+                             base::PlatformFileError error,
+                             const FilePath& file_path) {
+    ++num_callback_invocations_;
+    EXPECT_TRUE(file_util::PathExists(file_path));
+    EXPECT_TRUE(file_path == file_system_->GetCacheFilePath(
+        resource_id,
+        md5,
+        expected_sub_dir_type_,
+        to_mount ?
+            GDataFileSystemInterface::CACHED_FILE_MOUNTED :
+            GDataFileSystemInterface::CACHED_FILE_FROM_SERVER));
+  }
+
+  void TestSetMountedState(
+      const std::string& resource_id,
+      const std::string& md5,
+      const FilePath& file_path,
+      bool to_mount,
+      base::PlatformFileError expected_error,
+      int expected_cache_state,
+      GDataRootDirectory::CacheSubDirectoryType expected_sub_dir_type) {
+    expected_error_ = expected_error;
+    expected_cache_state_ = expected_cache_state;
+    expected_sub_dir_type_ = expected_sub_dir_type;
+    expect_outgoing_symlink_ = false;
+
+    file_system_->SetMountedState(file_path, to_mount,
+        base::Bind(&GDataFileSystemTest::VerifySetMountedState,
+                   base::Unretained(this), resource_id, md5, to_mount));
+
+    RunAllPendingForIO();
+  }
+
   void PrepareForInitCacheTest() {
     // Create gdata cache sub directories.
     ASSERT_TRUE(file_util::CreateDirectory(
@@ -3022,4 +3058,50 @@ TEST_F(GDataFileSystemTest, GetAvailableSpace) {
   EXPECT_TRUE(file_util::PathExists(path));
 }
 
+TEST_F(GDataFileSystemTest, MountUnmount) {
+  EXPECT_CALL(*mock_sync_client_, OnCacheInitialized()).Times(1);
+
+  FilePath file_path;
+  std::string resource_id("pdf:1a2b");
+  std::string md5("abcdef0123456789");
+
+  // First store a file to cache in the tmp subdir.
+  TestStoreToCache(resource_id, md5, GetTestFilePath("root_feed.json"),
+                   base::PLATFORM_FILE_OK, GDataFile::CACHE_STATE_PRESENT,
+                   GDataRootDirectory::CACHE_TYPE_TMP);
+
+  // Mark the file mounted.
+  num_callback_invocations_ = 0;
+  file_path = file_system_->GetCacheFilePath(
+      resource_id, md5,
+      GDataRootDirectory::CACHE_TYPE_TMP,
+      GDataFileSystemInterface::CACHED_FILE_FROM_SERVER);
+  TestSetMountedState(resource_id, md5, file_path, true,
+                      base::PLATFORM_FILE_OK,
+                      GDataFile::CACHE_STATE_PRESENT |
+                      GDataFile::CACHE_STATE_MOUNTED,
+                      GDataRootDirectory::CACHE_TYPE_PERSISTENT);
+  EXPECT_EQ(1, num_callback_invocations_);
+  EXPECT_TRUE(CacheEntryExists(resource_id, md5));
+
+  // Clear mounted state of the file.
+  num_callback_invocations_ = 0;
+  file_path = file_system_->GetCacheFilePath(
+      resource_id,
+      md5,
+      GDataRootDirectory::CACHE_TYPE_PERSISTENT,
+      GDataFileSystemInterface::CACHED_FILE_MOUNTED);
+  TestSetMountedState(resource_id, md5, file_path, false,
+                      base::PLATFORM_FILE_OK,
+                      GDataFile::CACHE_STATE_PRESENT,
+                      GDataRootDirectory::CACHE_TYPE_TMP);
+  EXPECT_EQ(1, num_callback_invocations_);
+  EXPECT_TRUE(CacheEntryExists(resource_id, md5));
+
+  // Try to remove the file.
+  num_callback_invocations_ = 0;
+  TestRemoveFromCache(resource_id, base::PLATFORM_FILE_OK);
+  EXPECT_EQ(1, num_callback_invocations_);
+}
+
 }   // namespace gdata