c77cdbac9b
Extend `std::basic_string` tests to cover more buffer situations and length in general, particularly non-SSO cases after SSO test cases (changing buffers). This commit is a side effect of working on tests for ASan annotations. Related PR: https://github.com/llvm/llvm-project/pull/72677
75 lines
2.2 KiB
C++
75 lines
2.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <string>
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// template<class charT, class traits, class Allocator>
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// void swap(basic_string<charT,traits,Allocator>& lhs,
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// basic_string<charT,traits,Allocator>& rhs); // constexpr since C++20
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#include <string>
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#include <stdexcept>
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#include <algorithm>
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#include <cassert>
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#include "test_macros.h"
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#include "min_allocator.h"
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template <class S>
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TEST_CONSTEXPR_CXX20 void test(S s1, S s2) {
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S s1_ = s1;
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S s2_ = s2;
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swap(s1, s2);
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LIBCPP_ASSERT(s1.__invariants());
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LIBCPP_ASSERT(s2.__invariants());
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assert(s1 == s2_);
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assert(s2 == s1_);
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}
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template <class S>
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TEST_CONSTEXPR_CXX20 void test_string() {
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test(S(""), S(""));
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test(S(""), S("12345"));
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test(S(""), S("1234567890"));
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test(S(""), S("12345678901234567890"));
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test(S("abcde"), S(""));
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test(S("abcde"), S("12345"));
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test(S("abcde"), S("1234567890"));
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test(S("abcde"), S("12345678901234567890"));
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test(S("abcdefghij"), S(""));
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test(S("abcdefghij"), S("12345"));
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test(S("abcdefghij"), S("1234567890"));
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test(S("abcdefghij"), S("12345678901234567890"));
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test(S("abcdefghijklmnopqrst"), S(""));
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test(S("abcdefghijklmnopqrst"), S("12345"));
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test(S("abcdefghijklmnopqrst"), S("1234567890"));
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test(S("abcdefghijklmnopqrst"), S("12345678901234567890"));
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test(S("abcdefghijklmnopqrst123456LONG1234567890"), S(""));
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test(S("abcdefghijklmnopqrst123456LONG1234567890"), S("12345"));
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test(S("abcdefghijklmnopqrst123456LONG1234567890"), S("1234567890"));
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test(S("abcdefghijklmnopqrst123456LONG1234567890"), S("12345678901234567890"));
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}
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TEST_CONSTEXPR_CXX20 bool test() {
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test_string<std::string>();
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#if TEST_STD_VER >= 11
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test_string<std::basic_string<char, std::char_traits<char>, min_allocator<char> > >();
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#endif
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return true;
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}
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int main(int, char**) {
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test();
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#if TEST_STD_VER > 17
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static_assert(test());
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#endif
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return 0;
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}
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