| // |
| // Test for BOOST_TEST_WITH |
| // |
| // Copyright (c) 2020 Bjorn Reese |
| // |
| // Distributed under the Boost Software License, Version 1.0. |
| // See accompanying file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt |
| // |
| |
| #include <boost/core/lightweight_test.hpp> |
| #include <cmath> |
| |
| template <typename T> |
| struct with_tolerance |
| { |
| with_tolerance(T tolerance) : tolerance(tolerance) {} |
| bool operator()(T lhs, T rhs) const |
| { |
| return (std::abs(lhs - rhs) <= tolerance); |
| } |
| |
| private: |
| T tolerance; |
| }; |
| |
| void test_tolerance_predicate() |
| { |
| BOOST_TEST_WITH( 1.0, 1.0, with_tolerance<double>(1e-5) ); |
| BOOST_TEST_WITH( 1.0, 1.0 - 1e-6, with_tolerance<double>(1e-5) ); |
| BOOST_TEST_WITH( 1.0, 1.0 + 1e-6, with_tolerance<double>(1e-5) ); |
| } |
| |
| int main() |
| { |
| test_tolerance_predicate(); |
| |
| return boost::report_errors(); |
| } |