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// Copyright (c) 2006-2009 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/scoped_ptr.h"
#include "base/string_util.h"
#include "base/values.h"
#include "chrome/browser/bookmarks/bookmark_model.h"
#include "chrome/browser/bookmarks/bookmark_codec.h"
#include "chrome/browser/bookmarks/bookmark_utils.h"
#include "testing/gtest/include/gtest/gtest.h"
class BookmarkCodecTest : public testing::Test {
protected:
// Helpers to create bookmark models with different data.
// Callers own the returned instances.
BookmarkModel* CreateModelWithOneUrl() {
scoped_ptr<BookmarkModel> model(new BookmarkModel(NULL));
BookmarkNode* bookmark_bar = model->GetBookmarkBarNode();
model->AddURL(bookmark_bar, 0, L"foo", GURL(L"http://www.foo.com"));
return model.release();
}
BookmarkModel* CreateModelWithTwoUrls() {
scoped_ptr<BookmarkModel> model(new BookmarkModel(NULL));
BookmarkNode* bookmark_bar = model->GetBookmarkBarNode();
model->AddURL(bookmark_bar, 0, L"foo", GURL(L"http://www.foo.com"));
model->AddURL(bookmark_bar, 1, L"bar", GURL(L"http://www.bar.com"));
return model.release();
}
void GetBookmarksBarChildValue(Value* value,
size_t index,
DictionaryValue** result_value) {
ASSERT_EQ(Value::TYPE_DICTIONARY, value->GetType());
DictionaryValue* d_value = static_cast<DictionaryValue*>(value);
Value* roots;
ASSERT_TRUE(d_value->Get(BookmarkCodec::kRootsKey, &roots));
ASSERT_EQ(Value::TYPE_DICTIONARY, roots->GetType());
DictionaryValue* roots_d_value = static_cast<DictionaryValue*>(roots);
Value* bb_value;
ASSERT_TRUE(roots_d_value->Get(BookmarkCodec::kRootFolderNameKey,
&bb_value));
ASSERT_EQ(Value::TYPE_DICTIONARY, bb_value->GetType());
DictionaryValue* bb_d_value = static_cast<DictionaryValue*>(bb_value);
Value* bb_children_value;
ASSERT_TRUE(bb_d_value->Get(BookmarkCodec::kChildrenKey,
&bb_children_value));
ASSERT_EQ(Value::TYPE_LIST, bb_children_value->GetType());
ListValue* bb_children_l_value = static_cast<ListValue*>(bb_children_value);
Value* child_value;
ASSERT_TRUE(bb_children_l_value->Get(index, &child_value));
ASSERT_EQ(Value::TYPE_DICTIONARY, child_value->GetType());
*result_value = static_cast<DictionaryValue*>(child_value);
}
Value* EncodeHelper(BookmarkModel* model, std::string* checksum) {
BookmarkCodec encoder;
// Computed and stored checksums should be empty.
EXPECT_EQ("", encoder.computed_checksum());
EXPECT_EQ("", encoder.stored_checksum());
scoped_ptr<Value> value(encoder.Encode(model));
const std::string& computed_checksum = encoder.computed_checksum();
const std::string& stored_checksum = encoder.stored_checksum();
// Computed and stored checksums should not be empty and should be equal.
EXPECT_FALSE(computed_checksum.empty());
EXPECT_FALSE(stored_checksum.empty());
EXPECT_EQ(computed_checksum, stored_checksum);
*checksum = computed_checksum;
return value.release();
}
BookmarkModel* DecodeHelper(const Value& value,
const std::string& expected_stored_checksum,
std::string* computed_checksum,
bool expected_changes) {
BookmarkCodec decoder;
// Computed and stored checksums should be empty.
EXPECT_EQ("", decoder.computed_checksum());
EXPECT_EQ("", decoder.stored_checksum());
scoped_ptr<BookmarkModel> model(new BookmarkModel(NULL));
EXPECT_TRUE(decoder.Decode(model.get(), value));
*computed_checksum = decoder.computed_checksum();
const std::string& stored_checksum = decoder.stored_checksum();
// Computed and stored checksums should not be empty.
EXPECT_FALSE(computed_checksum->empty());
EXPECT_FALSE(stored_checksum.empty());
// Stored checksum should be as expected.
EXPECT_EQ(expected_stored_checksum, stored_checksum);
// The two checksums should be equal if expected_changes is true; otherwise
// they should be different.
if (expected_changes)
EXPECT_NE(*computed_checksum, stored_checksum);
else
EXPECT_EQ(*computed_checksum, stored_checksum);
return model.release();
}
};
TEST_F(BookmarkCodecTest, ChecksumEncodeDecodeTest) {
scoped_ptr<BookmarkModel> model_to_encode(CreateModelWithOneUrl());
std::string enc_checksum;
scoped_ptr<Value> value(EncodeHelper(model_to_encode.get(), &enc_checksum));
EXPECT_TRUE(value.get() != NULL);
std::string dec_checksum;
scoped_ptr<BookmarkModel> decoded_model(DecodeHelper(
*value.get(), enc_checksum, &dec_checksum, false));
}
TEST_F(BookmarkCodecTest, ChecksumEncodeIdenticalModelsTest) {
// Encode two identical models and make sure the check-sums are same as long
// as the data is the same.
scoped_ptr<BookmarkModel> model1(CreateModelWithOneUrl());
std::string enc_checksum1;
scoped_ptr<Value> value1(EncodeHelper(model1.get(), &enc_checksum1));
EXPECT_TRUE(value1.get() != NULL);
scoped_ptr<BookmarkModel> model2(CreateModelWithOneUrl());
std::string enc_checksum2;
scoped_ptr<Value> value2(EncodeHelper(model2.get(), &enc_checksum2));
EXPECT_TRUE(value2.get() != NULL);
ASSERT_EQ(enc_checksum1, enc_checksum2);
}
TEST_F(BookmarkCodecTest, ChecksumManualEditTest) {
scoped_ptr<BookmarkModel> model_to_encode(CreateModelWithOneUrl());
std::string enc_checksum;
scoped_ptr<Value> value(EncodeHelper(model_to_encode.get(), &enc_checksum));
EXPECT_TRUE(value.get() != NULL);
// Change something in the encoded value before decoding it.
DictionaryValue* child1_value;
GetBookmarksBarChildValue(value.get(), 0, &child1_value);
std::wstring title;
ASSERT_TRUE(child1_value->GetString(BookmarkCodec::kNameKey, &title));
ASSERT_TRUE(child1_value->SetString(BookmarkCodec::kNameKey, title + L"1"));
std::string dec_checksum;
scoped_ptr<BookmarkModel> decoded_model1(DecodeHelper(
*value.get(), enc_checksum, &dec_checksum, true));
// Undo the change and make sure the checksum is same as original.
ASSERT_TRUE(child1_value->SetString(BookmarkCodec::kNameKey, title));
scoped_ptr<BookmarkModel> decoded_model2(DecodeHelper(
*value.get(), enc_checksum, &dec_checksum, false));
}
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