sync: Implement per-type commit interface

sync/sessions/ordered_commit_set_unittest.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 "sync/sessions/ordered_commit_set.h"
-#include "sync/test/engine/test_id_factory.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-using std::vector;
-
-namespace syncer {
-namespace sessions {
-namespace {
-
-class OrderedCommitSetTest : public testing::Test {
- public:
-  OrderedCommitSetTest() {}
- protected:
-  TestIdFactory ids_;
-};
-
-TEST_F(OrderedCommitSetTest, Insertions) {
-  vector<int64> expected;
-  for (int64 i = 0; i < 8; i++)
-    expected.push_back(i);
-
-  OrderedCommitSet commit_set1, commit_set2;
-  commit_set1.AddCommitItem(expected[0], BOOKMARKS);
-  commit_set1.AddCommitItem(expected[1], BOOKMARKS);
-  commit_set1.AddCommitItem(expected[2], PREFERENCES);
-  // Duplicates should be dropped.
-  commit_set1.AddCommitItem(expected[2], PREFERENCES);
-  commit_set1.AddCommitItem(expected[3], SESSIONS);
-  commit_set1.AddCommitItem(expected[4], SESSIONS);
-  commit_set2.AddCommitItem(expected[7], AUTOFILL);
-  commit_set2.AddCommitItem(expected[6], AUTOFILL);
-  commit_set2.AddCommitItem(expected[5], AUTOFILL);
-  // Add something in set1 to set2, which should get dropped by AppendReverse.
-  commit_set2.AddCommitItem(expected[0], BOOKMARKS);
-  commit_set1.AppendReverse(commit_set2);
-
-  EXPECT_EQ(8U, commit_set1.Size());
-
-  // First, we should verify the projections are correct. Second, we want to
-  // do the same verification after truncating by 1. Next, try truncating
-  // the set to a size of 4, so that the DB projection is wiped out and
-  // PASSIVE has one element removed.  Finally, truncate to 1 so only UI is
-  // remaining.
-  std::vector<size_t> sizes;
-  sizes.push_back(8);
-  sizes.push_back(7);
-  sizes.push_back(4);
-  sizes.push_back(1);
-  for (std::vector<size_t>::iterator it = sizes.begin();
-       it != sizes.end(); ++it) {
-    commit_set1.Truncate(*it);
-    size_t expected_size = *it;
-
-    SCOPED_TRACE(::testing::Message("Iteration size = ") << *it);
-    std::vector<int64> all_ids = commit_set1.GetAllCommitHandles();
-    EXPECT_EQ(expected_size, all_ids.size());
-    for (size_t i = 0; i < expected_size; i++) {
-      EXPECT_TRUE(expected[i] == all_ids[i]);
-      EXPECT_TRUE(expected[i] == commit_set1.GetCommitHandleAt(i));
-    }
-  }
-}
-
-TEST_F(OrderedCommitSetTest, HasBookmarkCommitId) {
-  OrderedCommitSet commit_set;
-
-  commit_set.AddCommitItem(0, AUTOFILL);
-  commit_set.AddCommitItem(1, SESSIONS);
-  EXPECT_FALSE(commit_set.HasBookmarkCommitId());
-
-  commit_set.AddCommitItem(2, PREFERENCES);
-  commit_set.AddCommitItem(3, PREFERENCES);
-  EXPECT_FALSE(commit_set.HasBookmarkCommitId());
-
-  commit_set.AddCommitItem(4, BOOKMARKS);
-  EXPECT_TRUE(commit_set.HasBookmarkCommitId());
-
-  commit_set.Truncate(4);
-  EXPECT_FALSE(commit_set.HasBookmarkCommitId());
-}
-
-TEST_F(OrderedCommitSetTest, AddAndRemoveEntries) {
-  OrderedCommitSet commit_set;
-
-  ASSERT_TRUE(commit_set.Empty());
-
-  commit_set.AddCommitItem(0, AUTOFILL);
-  ASSERT_EQ(static_cast<size_t>(1), commit_set.Size());
-
-  commit_set.Clear();
-  ASSERT_TRUE(commit_set.Empty());
-}
-
-}  // namespace
-}  // namespace sessions
-}  // namespace syncer