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add value tests

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This commit is contained in:
artemp 2016-01-21 12:48:36 +01:00
parent e100037288
commit 74776631c5
1 changed files with 58 additions and 0 deletions
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test/unit/core/value_test.cpp Normal file
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#include "catch.hpp"
#include <mapnik/value_types.hpp>
#include <mapnik/value.hpp>
TEST_CASE("mapnik::value")
{
SECTION("add/sub/mult/div")
{
mapnik::value v0 = 1; // mapnik::value_integer
mapnik::value v1 = 1.001; // mapnik::value_double
mapnik::value v2 = true; // mapnik::value_boolean
CHECK(v0.is<mapnik::value_integer>());
CHECK(v1.is<mapnik::value_double>());
CHECK(v2.is<mapnik::value_bool>());
// add
auto add0 = v0 + v1; // result value_double
auto add1 = v1 + v0;
auto add2 = v1 + v2; // result value_double
auto add3 = v2 + v1;
auto add4 = v0 + v2; // result value_integer
auto add5 = v2 + v0;
// check type promotion
CHECK(add0.is<mapnik::value_double>());
CHECK(add1.is<mapnik::value_double>());
CHECK(add2.is<mapnik::value_double>());
CHECK(add3.is<mapnik::value_double>());
CHECK(add4.is<mapnik::value_integer>());
CHECK(add5.is<mapnik::value_integer>());
// check commutative rules
CHECK(add0 == add1);
CHECK(add2 == add3);
CHECK(add4 == add5);
// sub
auto sub0 = v0 - v1;
auto sub1 = v1 - v0;
CHECK(sub0.is<mapnik::value_double>());
CHECK(sub1.is<mapnik::value_double>());
CHECK(sub0 == -sub1);
// multl
auto mult0 = v0 * v1;
auto mult1 = v1 * v0;
CHECK(mult0.is<mapnik::value_double>());
CHECK(mult1.is<mapnik::value_double>());
CHECK(mult0 == mult1);
// div
auto div0 = v0 / v1;
auto div1 = v1 / v0;
CHECK(div0.is<mapnik::value_double>());
CHECK(div1.is<mapnik::value_double>());
CHECK(div0 == 1.0/div1);
}
}