a40bada91a
This applies clang-format to the std::string unit tests in preparation for landing https://reviews.llvm.org/D140550. Differential Revision: https://reviews.llvm.org/D140612
123 lines
4.0 KiB
C++
123 lines
4.0 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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// basic_string<charT,traits,Allocator>&
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// assign(const basic_string<charT,traits>& str); // constexpr since C++20
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#include <string>
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#include <cassert>
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#include "test_macros.h"
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#include "nasty_string.h"
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#include "min_allocator.h"
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#include "test_allocator.h"
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template <class S>
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TEST_CONSTEXPR_CXX20 void test(S dest, S src) {
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dest.assign(src);
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LIBCPP_ASSERT(dest.__invariants());
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assert(dest == src);
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}
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template <class S>
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TEST_CONSTEXPR_CXX20 void testAlloc(S dest, S src, const typename S::allocator_type& a) {
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dest.assign(src);
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LIBCPP_ASSERT(dest.__invariants());
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assert(dest == src);
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assert(dest.get_allocator() == a);
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}
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template <class S>
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TEST_CONSTEXPR_CXX20 void test_assign() {
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using CharT = typename S::value_type;
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test(S(), S());
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test(S(), S(CONVERT_TO_CSTRING(CharT, "12345")));
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test(S(), S(CONVERT_TO_CSTRING(CharT, "1234567890")));
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test(S(), S(CONVERT_TO_CSTRING(CharT, "12345678901234567890")));
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test(S(CONVERT_TO_CSTRING(CharT, "12345")), S());
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test(S(CONVERT_TO_CSTRING(CharT, "12345")), S(CONVERT_TO_CSTRING(CharT, "12345")));
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test(S(CONVERT_TO_CSTRING(CharT, "12345")), S(CONVERT_TO_CSTRING(CharT, "1234567890")));
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test(S(CONVERT_TO_CSTRING(CharT, "12345")), S(CONVERT_TO_CSTRING(CharT, "12345678901234567890")));
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test(S(CONVERT_TO_CSTRING(CharT, "1234567890")), S());
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test(S(CONVERT_TO_CSTRING(CharT, "1234567890")), S(CONVERT_TO_CSTRING(CharT, "12345")));
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test(S(CONVERT_TO_CSTRING(CharT, "1234567890")), S(CONVERT_TO_CSTRING(CharT, "1234567890")));
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test(S(CONVERT_TO_CSTRING(CharT, "1234567890")), S(CONVERT_TO_CSTRING(CharT, "12345678901234567890")));
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test(S(CONVERT_TO_CSTRING(CharT, "12345678901234567890")), S());
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test(S(CONVERT_TO_CSTRING(CharT, "12345678901234567890")), S(CONVERT_TO_CSTRING(CharT, "12345")));
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test(S(CONVERT_TO_CSTRING(CharT, "12345678901234567890")), S(CONVERT_TO_CSTRING(CharT, "1234567890")));
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test(S(CONVERT_TO_CSTRING(CharT, "12345678901234567890")), S(CONVERT_TO_CSTRING(CharT, "12345678901234567890")));
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}
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TEST_CONSTEXPR_CXX20 bool test() {
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test_assign<std::string>();
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#ifndef TEST_HAS_NO_WIDE_CHARACTERS
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test_assign<std::wstring>();
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#endif
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#if TEST_STD_VER >= 20
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test_assign<std::u8string>();
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#endif
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#if TEST_STD_VER >= 11
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test_assign<std::u16string>();
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test_assign<std::u32string>();
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#endif
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#ifndef TEST_HAS_NO_NASTY_STRING
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test_assign<nasty_string>();
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#endif
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{
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typedef std::string S;
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testAlloc(S(), S(), std::allocator<char>());
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testAlloc(S(), S("12345"), std::allocator<char>());
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testAlloc(S(), S("1234567890"), std::allocator<char>());
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testAlloc(S(), S("12345678901234567890"), std::allocator<char>());
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}
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{ // LWG#5579 make sure assign takes the allocators where appropriate
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typedef other_allocator<char> A; // has POCCA --> true
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typedef std::basic_string<char, std::char_traits<char>, A> S;
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testAlloc(S(A(5)), S(A(3)), A(3));
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testAlloc(S(A(5)), S("1"), A());
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testAlloc(S(A(5)), S("1", A(7)), A(7));
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testAlloc(S(A(5)), S("1234567890123456789012345678901234567890123456789012345678901234567890", A(7)), A(7));
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}
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#if TEST_STD_VER >= 11
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{
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typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
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test_assign<S>();
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testAlloc(S(), S(), min_allocator<char>());
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testAlloc(S(), S("12345"), min_allocator<char>());
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testAlloc(S(), S("1234567890"), min_allocator<char>());
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testAlloc(S(), S("12345678901234567890"), min_allocator<char>());
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}
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#endif
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#if TEST_STD_VER > 14
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{
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typedef std::string S;
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static_assert(noexcept(S().assign(S())), ""); // LWG#2063
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}
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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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