8a915ed644
These tests are of the form
try {
action-that-may-throw
assert(!exceptional-condition)
assert(some-other-facts)
} catch (relevant-exception) {
assert(exceptional-condition)
}
Under libcpp-no-exceptions there is still value in verifying
some-other-facts while avoiding the exceptional case. So for these tests
just conditionally check some-other-facts if exceptional-condition is
false. When exception are supported make sure that a true
exceptional-condition throws an exception
Differential Revision: https://reviews.llvm.org/D26136
llvm-svn: 285697
128 lines
2.2 KiB
C++
128 lines
2.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <string>
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// void reserve(size_type res_arg=0);
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#include <string>
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#include <stdexcept>
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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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void
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test(S s)
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{
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typename S::size_type old_cap = s.capacity();
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S s0 = s;
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s.reserve();
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LIBCPP_ASSERT(s.__invariants());
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assert(s == s0);
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assert(s.capacity() <= old_cap);
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assert(s.capacity() >= s.size());
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}
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template <class S>
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void
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test(S s, typename S::size_type res_arg)
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{
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typename S::size_type old_cap = s.capacity();
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S s0 = s;
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if (res_arg <= s.max_size())
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{
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s.reserve(res_arg);
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assert(s == s0);
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assert(s.capacity() >= res_arg);
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assert(s.capacity() >= s.size());
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}
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#ifndef TEST_HAS_NO_EXCEPTIONS
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else
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{
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try
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{
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s.reserve(res_arg);
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assert(false);
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}
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catch (std::length_error&)
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{
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assert(res_arg > s.max_size());
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}
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}
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#endif
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}
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int main()
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{
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{
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typedef std::string S;
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{
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S s;
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test(s);
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s.assign(10, 'a');
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s.erase(5);
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test(s);
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s.assign(100, 'a');
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s.erase(50);
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test(s);
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}
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{
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S s;
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test(s, 5);
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test(s, 10);
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test(s, 50);
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}
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{
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S s(100, 'a');
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s.erase(50);
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test(s, 5);
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test(s, 10);
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test(s, 50);
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test(s, 100);
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test(s, S::npos);
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}
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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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{
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S s;
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test(s);
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s.assign(10, 'a');
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s.erase(5);
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test(s);
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s.assign(100, 'a');
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s.erase(50);
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test(s);
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}
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{
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S s;
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test(s, 5);
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test(s, 10);
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test(s, 50);
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}
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{
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S s(100, 'a');
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s.erase(50);
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test(s, 5);
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test(s, 10);
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test(s, 50);
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test(s, 100);
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test(s, S::npos);
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}
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}
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#endif
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}
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