libs/gil/test/core/channel/test_fixture.cpp

   1 //
   2 // Copyright 2018 Mateusz Loskot <mateusz at loskot dot net>
   3 //
   4 // Distributed under the Boost Software License, Version 1.0
   5 // See accompanying file LICENSE_1_0.txt or copy at
   6 // http://www.boost.org/LICENSE_1_0.txt
   7 //
   8 #include <limits>
   9
  10 #define BOOST_TEST_MODULE test_channel_test_fixture
  11 #include "unit_test.hpp"
  12 #include "test_fixture.hpp"
  13
  14 namespace fixture = boost::gil::test::fixture;
  15
  16 BOOST_AUTO_TEST_CASE_TEMPLATE(channel_minmax_value_integral, Channel, fixture::channel_integer_types)
  17 {
  18     fixture::channel_minmax_value<Channel> fix;
  19     fixture::channel_minmax_value<Channel> exp;
  20     BOOST_TEST(fix.min_v_ == exp.min_v_);
  21     BOOST_TEST(fix.max_v_ == exp.max_v_);
  22     BOOST_TEST(fix.min_v_ == std::numeric_limits<Channel>::min());
  23     BOOST_TEST(fix.max_v_ == std::numeric_limits<Channel>::max());
  24 }
  25
  26 BOOST_AUTO_TEST_CASE_TEMPLATE(channel_minmax_value_float, Channel, fixture::channel_float_types)
  27 {
  28     fixture::channel_minmax_value<Channel> fix;
  29     fixture::channel_minmax_value<Channel> exp;
  30     BOOST_TEST(fix.min_v_ == exp.min_v_);
  31     BOOST_TEST(fix.max_v_ == exp.max_v_);
  32 }
  33
  34 BOOST_AUTO_TEST_CASE_TEMPLATE(channel_value, Channel, fixture::channel_byte_types)
  35 {
  36     fixture::channel_value<Channel> fix;
  37     fixture::channel_minmax_value<Channel> exp;
  38     BOOST_TEST(fix.min_v_ == exp.min_v_);
  39     BOOST_TEST(fix.max_v_ == exp.max_v_);
  40 }
  41
  42 BOOST_AUTO_TEST_CASE_TEMPLATE(channel_reference, Channel, fixture::channel_byte_types)
  43 {
  44     fixture::channel_reference<Channel&> fix;
  45     fixture::channel_minmax_value<Channel> exp;
  46     BOOST_TEST(fix.min_v_ == exp.min_v_);
  47     BOOST_TEST(fix.max_v_ == exp.max_v_);
  48 }
  49
  50 BOOST_AUTO_TEST_CASE_TEMPLATE(
  51     channel_reference_const, Channel, fixture::channel_byte_types)
  52 {
  53     fixture::channel_reference<Channel const&> fix;
  54     fixture::channel_minmax_value<Channel> exp;
  55     BOOST_TEST(fix.min_v_ == exp.min_v_);
  56     BOOST_TEST(fix.max_v_ == exp.max_v_);
  57 }
  58
  59 BOOST_AUTO_TEST_CASE_TEMPLATE(
  60     packed_channels565, BitField, fixture::channel_bitfield_types)
  61 {
  62     static_assert(std::is_integral<BitField>::value, "bitfield is not integral type");
  63
  64     // Regardless of BitField buffer bit-size, the fixture is initialized
  65     // with max value that fits into 5+6+5 bit integer
  66     fixture::packed_channels565<BitField> fix;
  67     fixture::channel_minmax_value<std::uint16_t> exp;
  68     BOOST_TEST(fix.data_ == exp.max_v_);
  69 }
  70
  71 BOOST_AUTO_TEST_CASE_TEMPLATE(
  72     packed_dynamic_channels565, BitField, fixture::channel_bitfield_types)
  73 {
  74     static_assert(std::is_integral<BitField>::value, "bitfield is not integral type");
  75
  76     // Regardless of BitField buffer bit-size, the fixture is initialized
  77     // with max value that fits into 5+6+5 bit integer
  78     fixture::packed_dynamic_channels565<BitField> fix;
  79     fixture::channel_minmax_value<std::uint16_t> exp;
  80     BOOST_TEST(fix.data_ == exp.max_v_);
  81 }