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Motivation: - state clearly what is covered with tests without reading non-trivial code - avoid cleverness - tests should be no-brainer - get closer to one test case targets one feature/beaviour with one check - replace obscure `throw std::exception` with diagnostics that are actually useful to pin-point failure cause and location - makes CI logs useful. - allow to select and run specific tests - make tests maintenance easy, quick and fun Propose new structure of tests that reflects the previous tests hierarchy, but organizes channel tests in test/channel directory with test programs each covering specific library feature (or set of closely related features). The refactored tests cover 100% of checks from the old `channel.cpp`, plus it refines or adds a bunch more. NOTE: old test/channel.cpp has not been removed yet. Common definitions from the single test/channel.cpp moved to channel_test_fixtures.hpp and namespace boost::gil::test::fixture: Classes and typedefs: - `do_test` as `fixture::channel` - `value_core` as `fixture::channel_value` - `reference_core` as `fixture::channel_reference` - `packed_reference_core` as `fixture::packed_channel_reference` - `packed_dynamic_reference_core` as `fixture::packed_dynamic_channel_reference` - `channel_archetype` and relatives to `channel_concepts.cpp` which is compile test in Jamfile - `test_packed_channel_reference()` parts as `fixture::packed_channels565` - `test_packed_dynamic_channel_reference()` parts as `fixture::packed_dynamic_channels565` Test case functions called from `do_test<T>::test_all`: - `test_channel_invert()` to `algorithm_channel_invert.cpp` suite - `test_channel_convert()` to `algorithm_channel_convert.cpp` suite - `test_channel_multiply()` to `algorithm_channel_multiply.cpp` suite - `test_channel_math()` split to `algorithm_channel_relation.cpp` and `algorithm_channel_arithmetic.cpp` Add test cases for each channel value type T as used to run from `test_channel_value_impl<T>`, `test_packed_channel_reference<T>` and `test_packed_dynamic_channel_reference<T>`. Add list of possible T-s defined as type-lists `fixture::channel_byte_types`, `fixture::channel_integer_types`, `channel_float_types` and `channel_bitfield_types` which used with `BOOST_AUTO_TEST_CASE_TEMPLATE` generate all possible combination of inputs. Add new `channel_test_fixture.cpp` is a self-test suite verifying the fixtures.
70 lines
2.4 KiB
C++
70 lines
2.4 KiB
C++
//
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// Copyright 2018 Mateusz Loskot <mateusz at loskot dot net>
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//
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// Distributed under the Boost Software License, Version 1.0
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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//
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#define BOOST_TEST_MODULE test_channel_test_fixture
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#include <gil_test_common.hpp>
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#include "channel_test_fixture.hpp"
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namespace fixture = boost::gil::test::fixture;
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BOOST_AUTO_TEST_CASE_TEMPLATE(channel_minmax_value, Channel, fixture::channel_byte_types)
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{
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fixture::channel_minmax_value<Channel> fix;
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fixture::channel_minmax_value<Channel> exp;
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BOOST_TEST(fix.min_v_ == exp.min_v_);
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BOOST_TEST(fix.max_v_ == exp.max_v_);
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}
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BOOST_AUTO_TEST_CASE_TEMPLATE(channel_value, Channel, fixture::channel_byte_types)
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{
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fixture::channel_value<Channel> fix;
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fixture::channel_minmax_value<Channel> exp;
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BOOST_TEST(fix.min_v_ == exp.min_v_);
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BOOST_TEST(fix.max_v_ == exp.max_v_);
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}
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BOOST_AUTO_TEST_CASE_TEMPLATE(channel_reference, Channel, fixture::channel_byte_types)
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{
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fixture::channel_reference<Channel&> fix;
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fixture::channel_minmax_value<Channel> exp;
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BOOST_TEST(fix.min_v_ == exp.min_v_);
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BOOST_TEST(fix.max_v_ == exp.max_v_);
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}
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BOOST_AUTO_TEST_CASE_TEMPLATE(
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channel_reference_const, Channel, fixture::channel_byte_types)
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{
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fixture::channel_reference<Channel const&> fix;
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fixture::channel_minmax_value<Channel> exp;
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BOOST_TEST(fix.min_v_ == exp.min_v_);
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BOOST_TEST(fix.max_v_ == exp.max_v_);
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}
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BOOST_AUTO_TEST_CASE_TEMPLATE(
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packed_channels565, BitField, fixture::channel_bitfield_types)
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{
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static_assert(std::is_integral<BitField>::value, "bitfield is not integral type");
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// Regardless of BitField buffer bit-size, the fixture is initialized
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// with max value that fits into 5+6+5 bit integer
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fixture::packed_channels565<BitField> fix;
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fixture::channel_minmax_value<std::uint16_t> exp;
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BOOST_TEST(fix.data_ == exp.max_v_);
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}
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BOOST_AUTO_TEST_CASE_TEMPLATE(
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packed_dynamic_channels565, BitField, fixture::channel_bitfield_types)
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{
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static_assert(std::is_integral<BitField>::value, "bitfield is not integral type");
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// Regardless of BitField buffer bit-size, the fixture is initialized
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// with max value that fits into 5+6+5 bit integer
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fixture::packed_dynamic_channels565<BitField> fix;
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fixture::channel_minmax_value<std::uint16_t> exp;
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BOOST_TEST(fix.data_ == exp.max_v_);
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}
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