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unit coverage of css_color_grammar converters

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Dane Springmeyer 2015-06-13 19:47:51 -07:00
parent f36b451602
commit b355e65fe1
1 changed files with 38 additions and 0 deletions
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test/unit/color/css_color.cpp Normal file
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#include "catch.hpp"
#include <mapnik/css_color_grammar.hpp>
#include <mapnik/safe_cast.hpp>
TEST_CASE("css color") {
SECTION("conversions")
{
mapnik::percent_conv_impl conv;
CHECK( conv(1.0) == 3 );
CHECK( conv(60.0) == 153 );
// should not overflow on invalid input
CHECK( conv(100000.0) == 255 );
CHECK( conv(-100000.0) == 0 );
mapnik::alpha_conv_impl conv2;
CHECK( conv2(0.5) == 128 );
CHECK( conv2(1.0) == 255 );
// should not overflow on invalid input
CHECK( conv2(60.0) == 255 );
CHECK( conv2(100000.0) == 255 );
CHECK( conv2(-100000.0) == 0 );
mapnik::hsl_conv_impl conv3;
mapnik::color c;
conv3(c, 1.0, 1.0, 1.0);
CHECK( c.alpha() == 255 );
CHECK( c.red() == 3 );
CHECK( c.green() == 3 );
CHECK( c.blue() == 3 );
// invalid
conv3(c, -1, -1, -1);
CHECK( c.alpha() == 255 ); // should not be touched by hsl converter
CHECK( c.red() == 0 );
CHECK( c.green() == 0 );
CHECK( c.blue() == 0 );
}
}