sync/syncable/deferred_on_disk_directory_backing_store_unittest.cc

   1 // Copyright 2014 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/files/scoped_temp_dir.h"
   6 #include "base/stl_util.h"
   7 #include "sync/syncable/deferred_on_disk_directory_backing_store.h"
   8 #include "sync/syncable/directory.h"
   9 #include "sync/syncable/entry_kernel.h"
  10 #include "sync/syncable/on_disk_directory_backing_store.h"
  11 #include "sync/syncable/syncable_delete_journal.h"
  12 #include "testing/gtest/include/gtest/gtest.h"
  13
  14 namespace syncer {
  15 namespace syncable {
  16 namespace {
  17
  18 static const base::FilePath::CharType kSyncDataFolderName[] =
  19     FILE_PATH_LITERAL("Sync Data");
  20
  21 class DeferredOnDiskDirectoryBackingStoreTest : public testing::Test {
  22  protected:
  23   void SetUp() override {
  24     CHECK(temp_dir_.CreateUniqueTempDir());
  25     db_path_ = temp_dir_.path().Append(kSyncDataFolderName);
  26   }
  27
  28   void TearDown() override { STLDeleteValues(&handles_map_); }
  29
  30   base::ScopedTempDir temp_dir_;
  31   base::FilePath db_path_;
  32   Directory::MetahandlesMap handles_map_;
  33   JournalIndex delete_journals_;
  34   MetahandleSet metahandles_to_purge_;
  35   Directory::KernelLoadInfo kernel_load_info_;
  36 };
  37
  38 // Test initialization of root entry when calling Load().
  39 TEST_F(DeferredOnDiskDirectoryBackingStoreTest, Load) {
  40   DeferredOnDiskDirectoryBackingStore store("test", db_path_);
  41   EXPECT_EQ(OPENED, store.Load(&handles_map_, &delete_journals_,
  42                                &metahandles_to_purge_, &kernel_load_info_));
  43   EXPECT_TRUE(delete_journals_.empty());
  44   EXPECT_TRUE(metahandles_to_purge_.empty());
  45   ASSERT_EQ(1u, handles_map_.size());   // root node
  46   ASSERT_TRUE(handles_map_.count(1));
  47   EntryKernel* root = handles_map_[1];
  48   EXPECT_TRUE(root->ref(ID).IsRoot());
  49   EXPECT_EQ(1, root->ref(META_HANDLE));
  50   EXPECT_TRUE(root->ref(IS_DIR));
  51 }
  52
  53 // Test on-disk DB is not created if SaveChanges() is not called.
  54 TEST_F(DeferredOnDiskDirectoryBackingStoreTest,
  55        DontPersistIfSavingChangesNotCalled) {
  56   {
  57     // Open and close.
  58     DeferredOnDiskDirectoryBackingStore store("test", db_path_);
  59     EXPECT_EQ(OPENED, store.Load(&handles_map_, &delete_journals_,
  60                                  &metahandles_to_purge_, &kernel_load_info_));
  61   }
  62
  63   EXPECT_FALSE(base::PathExists(db_path_));
  64 }
  65
  66 // Test on-disk DB is not created when there are no changes.
  67 TEST_F(DeferredOnDiskDirectoryBackingStoreTest,
  68        DontPersistWhenSavingNoChanges) {
  69   {
  70     // Open and close.
  71     DeferredOnDiskDirectoryBackingStore store("test", db_path_);
  72     EXPECT_EQ(OPENED, store.Load(&handles_map_, &delete_journals_,
  73                                  &metahandles_to_purge_, &kernel_load_info_));
  74
  75     Directory::SaveChangesSnapshot snapshot;
  76     store.SaveChanges(snapshot);
  77   }
  78
  79   EXPECT_FALSE(base::PathExists(db_path_));
  80 }
  81
  82 // Test changes are persisted to disk when SaveChanges() is called.
  83 TEST_F(DeferredOnDiskDirectoryBackingStoreTest, PersistWhenSavingValidChanges) {
  84   {
  85     // Open and close.
  86     DeferredOnDiskDirectoryBackingStore store("test", db_path_);
  87     EXPECT_EQ(OPENED, store.Load(&handles_map_, &delete_journals_,
  88                                  &metahandles_to_purge_, &kernel_load_info_));
  89
  90     Directory::SaveChangesSnapshot snapshot;
  91     EntryKernel* entry = new EntryKernel();
  92     entry->put(ID, Id::CreateFromClientString("test_entry"));
  93     entry->put(META_HANDLE, 2);
  94     entry->mark_dirty(NULL);
  95     snapshot.dirty_metas.insert(entry);
  96     store.SaveChanges(snapshot);
  97   }
  98
  99   STLDeleteValues(&handles_map_);
 100
 101   ASSERT_TRUE(base::PathExists(db_path_));
 102   OnDiskDirectoryBackingStore read_store("test", db_path_);
 103   EXPECT_EQ(OPENED,
 104             read_store.Load(&handles_map_, &delete_journals_,
 105                             &metahandles_to_purge_, &kernel_load_info_));
 106   ASSERT_EQ(2u, handles_map_.size());
 107   ASSERT_TRUE(handles_map_.count(1));     // root node
 108   ASSERT_TRUE(handles_map_.count(2));
 109   EntryKernel* entry = handles_map_[2];
 110   EXPECT_EQ(Id::CreateFromClientString("test_entry"), entry->ref(ID));
 111 }
 112
 113 }  // namespace
 114 }  // namespace syncable
 115 }  // namespace syncer