a39d2fb90c
Also, add automatic unit tests for any_of, all_of and none_of. This commit also makes it easier to add new automatic unit tests by documenting a small shell script. Commit triggered by http://stackoverflow.com/q/42012512/627587
91 lines
3.0 KiB
C++
91 lines
3.0 KiB
C++
// Copyright Louis Dionne 2013-2017
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_HANA_TEST_AUTO_NONE_OF_HPP
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#define BOOST_HANA_TEST_AUTO_NONE_OF_HPP
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#include <boost/hana/assert.hpp>
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#include <boost/hana/bool.hpp>
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#include <boost/hana/equal.hpp>
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#include <boost/hana/none_of.hpp>
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#include <boost/hana/not.hpp>
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#include "test_case.hpp"
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#include <laws/base.hpp>
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TestCase test_none_of{[]{
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namespace hana = boost::hana;
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using hana::test::ct_eq;
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BOOST_HANA_CONSTANT_CHECK(hana::none_of(
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MAKE_TUPLE(),
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[](auto) { return hana::false_c; }
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));
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BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::none_of(
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MAKE_TUPLE(ct_eq<0>{}),
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[](auto) { return hana::true_c; }
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)));
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BOOST_HANA_CONSTANT_CHECK(hana::none_of(
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MAKE_TUPLE(ct_eq<0>{}),
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[](auto) { return hana::false_c; }
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));
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BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::none_of(
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MAKE_TUPLE(ct_eq<0>{}),
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hana::equal.to(ct_eq<0>{})
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)));
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BOOST_HANA_CONSTANT_CHECK(hana::none_of(
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MAKE_TUPLE(ct_eq<0>{}),
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hana::equal.to(ct_eq<999>{})
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));
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BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::none_of(
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MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<4>{}),
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hana::equal.to(ct_eq<0>{})
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)));
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BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::none_of(
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MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<4>{}),
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hana::equal.to(ct_eq<1>{})
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)));
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BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::none_of(
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MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<4>{}),
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hana::equal.to(ct_eq<2>{})
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)));
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BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::none_of(
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MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<4>{}),
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hana::equal.to(ct_eq<3>{})
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)));
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BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::none_of(
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MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<4>{}),
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hana::equal.to(ct_eq<4>{})
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)));
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BOOST_HANA_CONSTANT_CHECK(hana::none_of(
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MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<4>{}),
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hana::equal.to(ct_eq<999>{})
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));
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// Make sure `none_of` short-circuits with runtime predicates
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// See http://stackoverflow.com/q/42012512/627587
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{
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{
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int counter = 0;
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auto tuple = MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{});
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hana::none_of(tuple, [&](auto) { ++counter; return true; });
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BOOST_HANA_RUNTIME_CHECK(counter == 1);
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}
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{
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int counter = 0;
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auto tuple = MAKE_TUPLE(ct_eq<999>{}, ct_eq<0>{}, ct_eq<999>{});
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hana::none_of(tuple, [&](auto x) -> bool {
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++counter;
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return hana::equal(x, ct_eq<0>{});
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});
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BOOST_HANA_RUNTIME_CHECK(counter == 2);
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}
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}
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}};
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#endif // !BOOST_HANA_TEST_AUTO_NONE_OF_HPP
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