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author | Bruno de Oliveira Abinader <bruno@mapbox.com> | 2016-03-10 19:49:09 +0200 |
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committer | Bruno de Oliveira Abinader <bruno@mapbox.com> | 2016-03-18 00:53:14 +0200 |
commit | ac70ada2d3e9b842a1fd3f46361d323ddb20d232 (patch) | |
tree | d1dedaf12bee23241b55622210378981299a567c /test | |
parent | cfcccb94a10c60444438049c078b066ea9a08463 (diff) | |
download | qtlocation-mapboxgl-ac70ada2d3e9b842a1fd3f46361d323ddb20d232.tar.gz |
[core] Check for NaNs in mbgl::util::{min,max,clamp}
Diffstat (limited to 'test')
-rw-r--r-- | test/test.gypi | 1 | ||||
-rw-r--r-- | test/util/math.cpp | 42 |
2 files changed, 43 insertions, 0 deletions
diff --git a/test/test.gypi b/test/test.gypi index d85faf2f5a..b9ba820e72 100644 --- a/test/test.gypi +++ b/test/test.gypi @@ -42,6 +42,7 @@ 'util/geo.cpp', 'util/image.cpp', 'util/mapbox.cpp', + 'util/math.cpp', 'util/merge_lines.cpp', 'util/run_loop.cpp', 'util/text_conversions.cpp', diff --git a/test/util/math.cpp b/test/util/math.cpp new file mode 100644 index 0000000000..0074b43509 --- /dev/null +++ b/test/util/math.cpp @@ -0,0 +1,42 @@ +#include "../fixtures/util.hpp" + +#include <mbgl/util/constants.hpp> +#include <mbgl/util/math.hpp> + +using namespace mbgl; + +TEST(Math, MinMaxFloatingPoint) { + double minimumValue = std::numeric_limits<double>::min(); + double lowestValue = std::numeric_limits<double>::lowest(); + double maximumValue = std::numeric_limits<double>::max(); + double quietNAN = std::numeric_limits<double>::quiet_NaN(); + + ASSERT_DOUBLE_EQ(lowestValue, util::min(minimumValue, lowestValue)); + ASSERT_DOUBLE_EQ(lowestValue, util::min(double(NAN), lowestValue)); + ASSERT_DOUBLE_EQ(lowestValue, util::min(quietNAN, lowestValue)); + ASSERT_DOUBLE_EQ(0., util::min(2., 1., 0.)); + + ASSERT_DOUBLE_EQ(maximumValue, util::max(double(NAN), maximumValue)); + ASSERT_DOUBLE_EQ(maximumValue, util::max(quietNAN, maximumValue)); + ASSERT_DOUBLE_EQ(10., util::max(8., 9., 10.)); + + ASSERT_DOUBLE_EQ(0., util::clamp(0., quietNAN, quietNAN)); + ASSERT_DOUBLE_EQ(0., util::clamp(0., lowestValue, maximumValue)); +} + +TEST(Math, MinMaxIntegral) { + int32_t minimumValue = std::numeric_limits<int32_t>::min(); + int32_t lowestValue = std::numeric_limits<int32_t>::lowest(); + int32_t maximumValue = std::numeric_limits<int32_t>::max(); + int32_t quietNAN = std::numeric_limits<int32_t>::quiet_NaN(); + + ASSERT_EQ(lowestValue, util::min(minimumValue, lowestValue)); + ASSERT_EQ(lowestValue, util::min(quietNAN, lowestValue)); + ASSERT_EQ(0, util::min(2, 1, 0)); + + ASSERT_EQ(maximumValue, util::max(quietNAN, maximumValue)); + ASSERT_EQ(10, util::max(8, 9, 10)); + + ASSERT_EQ(0, util::clamp(0, quietNAN, quietNAN)); + ASSERT_EQ(0, util::clamp(0, lowestValue, maximumValue)); +} |