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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/base/clipboard/custom_data_helper.h"
#include <utility>
#include "base/pickle.h"
#include "base/strings/utf_string_conversions.h"
#include "testing/gtest/include/gtest/gtest.h"
using base::ASCIIToUTF16;
namespace ui {
namespace {
void PrepareEmptyTestData(base::Pickle* pickle) {
std::unordered_map<std::u16string, std::u16string> data;
WriteCustomDataToPickle(data, pickle);
}
void PrepareTestData(base::Pickle* pickle) {
std::unordered_map<std::u16string, std::u16string> data = {
{u"abc", std::u16string()}, {u"de", u"1"}, {u"f", u"23"}};
WriteCustomDataToPickle(data, pickle);
}
TEST(CustomDataHelperTest, EmptyReadTypes) {
base::Pickle pickle;
PrepareEmptyTestData(&pickle);
std::vector<std::u16string> types;
ReadCustomDataTypes(pickle, &types);
EXPECT_EQ(0u, types.size());
}
TEST(CustomDataHelperTest, EmptyReadSingleType) {
base::Pickle pickle;
PrepareEmptyTestData(&pickle);
EXPECT_EQ(std::nullopt, ReadCustomDataForType(pickle, u"f"));
}
TEST(CustomDataHelperTest, EmptyReadMap) {
base::Pickle pickle;
PrepareEmptyTestData(&pickle);
EXPECT_EQ((std::unordered_map<std::u16string, std::u16string>()),
ReadCustomDataIntoMap(pickle));
}
TEST(CustomDataHelperTest, ReadTypes) {
base::Pickle pickle;
PrepareTestData(&pickle);
std::vector<std::u16string> types;
ReadCustomDataTypes(pickle, &types);
std::vector<std::u16string> expected = {u"abc", u"de", u"f"};
// We need to sort to compare equality, as the underlying custom data is
// unordered
std::sort(types.begin(), types.end());
std::sort(expected.begin(), expected.end());
EXPECT_EQ(expected, types);
}
TEST(CustomDataHelperTest, ReadSingleType) {
base::Pickle pickle;
PrepareTestData(&pickle);
EXPECT_EQ(u"", ReadCustomDataForType(pickle, u"abc"));
EXPECT_EQ(u"1", ReadCustomDataForType(pickle, u"de"));
EXPECT_EQ(u"23", ReadCustomDataForType(pickle, u"f"));
}
TEST(CustomDataHelperTest, ReadMap) {
base::Pickle pickle;
PrepareTestData(&pickle);
const std::unordered_map<std::u16string, std::u16string> expected = {
{u"abc", std::u16string()}, {u"de", u"1"}, {u"f", u"23"}};
EXPECT_EQ(expected, ReadCustomDataIntoMap(pickle));
}
TEST(CustomDataHelperTest, BadReadTypes) {
// ReadCustomDataTypes makes the additional guarantee that the contents of the
// result vector will not change if the input is malformed.
const std::vector<std::u16string> expected = {u"abc", u"de", u"f"};
{
base::Pickle malformed;
malformed.WriteUInt32(1000);
malformed.WriteString16(u"hello");
malformed.WriteString16(u"world");
std::vector<std::u16string> actual = expected;
ReadCustomDataTypes(malformed, &actual);
EXPECT_EQ(expected, actual);
}
{
base::Pickle malformed;
malformed.WriteUInt32(1);
malformed.WriteString16(u"hello");
std::vector<std::u16string> actual = expected;
ReadCustomDataTypes(malformed, &actual);
EXPECT_EQ(expected, actual);
}
}
TEST(CustomDataHelperTest, BadPickle) {
std::unordered_map<std::u16string, std::u16string> result_map;
{
base::Pickle malformed;
malformed.WriteUInt32(1000);
malformed.WriteString16(u"hello");
malformed.WriteString16(u"world");
EXPECT_EQ(std::nullopt, ReadCustomDataForType(malformed, u"f"));
EXPECT_EQ(std::nullopt, ReadCustomDataIntoMap(malformed));
}
{
base::Pickle malformed;
malformed.WriteUInt32(1);
malformed.WriteString16(u"hello");
EXPECT_EQ(std::nullopt, ReadCustomDataForType(malformed, u"f"));
EXPECT_EQ(std::nullopt, ReadCustomDataIntoMap(malformed));
}
}
} // namespace
} // namespace ui
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