1 // Copyright 2018 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 <memory>
6 #include <string>
7
8 #include "base/debug/alias.h"
9 #include "testing/gtest/include/gtest/gtest.h"
10
TEST(DebugAlias,Test)11 TEST(DebugAlias, Test) {
12 std::unique_ptr<std::string> input =
13 std::make_unique<std::string>("string contents");
14
15 // Verify the contents get copied + the new local variable has the right type.
16 DEBUG_ALIAS_FOR_CSTR(copy1, input->c_str(), 100 /* > input->size() */);
17 static_assert(sizeof(copy1) == 100,
18 "Verification that copy1 has expected size");
19 EXPECT_STREQ("string contents", copy1);
20
21 // Verify that the copy is properly null-terminated even when it is smaller
22 // than the input string.
23 DEBUG_ALIAS_FOR_CSTR(copy2, input->c_str(), 3 /* < input->size() */);
24 static_assert(sizeof(copy2) == 3,
25 "Verification that copy2 has expected size");
26 EXPECT_STREQ("st", copy2);
27 EXPECT_EQ('\0', copy2[2]);
28 }
29