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fix spaceship detection macros, add tests for point interval and first argument determines type

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This commit is contained in:
Ivan Matek
2021-08-31 21:39:59 +02:00
parent fe66d6211d
commit 2409048368
1 changed files with 28 additions and 6 deletions
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34
test/is_clamped_test.cpp
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@ -7,9 +7,14 @@
#include <boost/algorithm/clamp.hpp>
#include <cmath>
#include <cstdint>
#ifdef __cpp_impl_three_way_comparison &&__has_include(<compare>)
#ifdef __cpp_impl_three_way_comparison
#if __has_include(<compare>)
#define BOOST_IS_CLAMPED_TEST_SPACESHIP
#endif
#ifdef BOOST_IS_CLAMPED_TEST_SPACESHIP
#include <compare>
#endif
#endif
#include <limits>
#include <string>
#include <tuple>
@ -84,11 +89,11 @@ void test_ints() {
BOOST_CHECK_EQUAL ( false, ba::is_clamped ( 0U, 1, 6. ));
BOOST_CHECK_EQUAL ( false, ba::is_clamped ( 8U, 1, 6. ));
short foo = 50;
// float->short conversion does not round
BOOST_CHECK_EQUAL ( true, ba::is_clamped ( foo, 50.999, 100 ));
BOOST_CHECK_EQUAL ( false, ba::is_clamped ( foo, 51.001, 100 ));
BOOST_CHECK_EQUAL ( true, ba::is_clamped ( 50, 50.999, 100 ));
BOOST_CHECK_EQUAL ( false, ba::is_clamped ( 50, 51.001, 100 ));
}
void test_floats() {
// If floats are IEEE754 certain floats have exact representations.
if (std::numeric_limits<float>::is_iec559) {
@ -141,6 +146,21 @@ void test_custom() {
BOOST_CHECK_EQUAL ( false, ba::is_clamped ( c7, c1, c6, customLess ));
}
void test_point_interval() {
BOOST_CHECK_EQUAL(true, ba::is_clamped(1, 1, 1));
BOOST_CHECK_EQUAL(false, ba::is_clamped(0, 1, 1));
BOOST_CHECK_EQUAL(false, ba::is_clamped(2, 1, 1));
}
void test_first_argument_determines_types() {
// all arguments are int
BOOST_CHECK_EQUAL(true, ba::is_clamped(5, 5.9, 6.1));
BOOST_CHECK_EQUAL(true, ba::is_clamped(6, 5.9, 6.1));
// all arguments are double
BOOST_CHECK_EQUAL(false, ba::is_clamped(5.0, 5.9, 6.1));
BOOST_CHECK_EQUAL(false, ba::is_clamped(6.2, 5.9, 6.1));
}
void test_constexpr() {
#if __cplusplus >= 201402L
{
@ -167,7 +187,7 @@ void test_constexpr() {
}
#ifdef __cpp_impl_three_way_comparison &&__has_include(<compare>)
#ifdef BOOST_IS_CLAMPED_TEST_SPACESHIP
struct custom_with_spaceship {
int v;
auto operator<=>(const custom_with_spaceship&) const = default;
@ -175,7 +195,7 @@ struct custom_with_spaceship {
#endif
void test_spaceship() {
#ifdef __cpp_impl_three_way_comparison &&__has_include(<compare>)
#ifdef BOOST_IS_CLAMPED_TEST_SPACESHIP
// Inside the range, equal to the endpoints, and outside the endpoints.
const custom_with_spaceship c0(0);
const custom_with_spaceship c1(1);
@ -202,6 +222,8 @@ BOOST_AUTO_TEST_CASE(test_main) {
test_floats();
test_std_string();
test_custom();
test_point_interval();
test_first_argument_determines_types();
test_constexpr();
test_spaceship();
}