48 lines
1.7 KiB
C++
48 lines
1.7 KiB
C++
// Copyright 2018 The Chromium Authors
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#include <algorithm>
|
|
#include <memory>
|
|
#include <string>
|
|
|
|
#include "base/debug/alias.h"
|
|
#include "base/ranges/algorithm.h"
|
|
#include "testing/gtest/include/gtest/gtest.h"
|
|
|
|
TEST(DebugAlias, Test) {
|
|
const char kTestString[] = "string contents";
|
|
std::unique_ptr<std::string> input =
|
|
std::make_unique<std::string>("string contents");
|
|
|
|
// Verify the contents get copied + the new local variable has the right type.
|
|
DEBUG_ALIAS_FOR_CSTR(copy1, input->c_str(), 100 /* > input->size() */);
|
|
static_assert(std::is_same_v<decltype(copy1), char[100]>);
|
|
EXPECT_TRUE(
|
|
std::equal(std::begin(kTestString), std::end(kTestString), copy1));
|
|
|
|
// Verify that the copy is properly null-terminated even when it is smaller
|
|
// than the input string.
|
|
DEBUG_ALIAS_FOR_CSTR(copy2, input->c_str(), 3 /* < input->size() */);
|
|
static_assert(std::is_same_v<decltype(copy2), char[3]>);
|
|
EXPECT_TRUE(std::equal(std::begin(copy2), std::end(copy2), "st"));
|
|
}
|
|
|
|
TEST(DebugAlias, U16String) {
|
|
const char16_t kTestString[] = u"H͟e͟l͟l͟o͟ ͟w͟o͟r͟l͟d͟!͟";
|
|
std::u16string input = kTestString;
|
|
|
|
DEBUG_ALIAS_FOR_U16CSTR(aliased_copy, input.c_str(), 100);
|
|
static_assert(std::is_same_v<decltype(aliased_copy), char16_t[100]>);
|
|
EXPECT_TRUE(
|
|
std::equal(std::begin(kTestString), std::end(kTestString), aliased_copy));
|
|
}
|
|
|
|
TEST(DebugAlias, U16StringPartialCopy) {
|
|
std::u16string input = u"Hello world!";
|
|
DEBUG_ALIAS_FOR_U16CSTR(aliased_copy, input.c_str(), 5);
|
|
// Make sure we don't write past the specified number of characters. We
|
|
// subtract 1 to account for the null terminator.
|
|
EXPECT_EQ(input.substr(0, 4), aliased_copy);
|
|
}
|