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Better tests to fully cover all cases

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This commit is contained in:
Blake Thompson 2015-05-12 15:01:17 -05:00
parent 39428585f0
commit 166e606b71
1 changed files with 97 additions and 2 deletions
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99
test/unit/geometry/geometry_strategy_test.cpp
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@ -139,8 +139,103 @@ SECTION("proj and view strategy") {
assert_g_equal(r1, p3);
}
}
} // END SECTION
}
SECTION("scaling strategies - double to double") {
using namespace mapnik::geometry;
{
scale_strategy ss(10.0);
point<double> p(-90.3, 35.5);
point<double> r(-903.0, 355.0);
point<double> o = transform<double>(p, ss);
assert_g_equal(r, o);
}
{
scale_strategy ss(0.5, -2.0);
point<double> p(-90.3, 35.5);
point<double> r(-47.15, 15.75);
point<double> o = transform<double>(p, ss);
assert_g_equal(r, o);
}
{
// Not the rounding doesn't apply because not casting to ints
scale_rounding_strategy ss(0.5, -2.0);
point<double> p(-90.3, 35.5);
point<double> r(-47.15, 15.75);
point<double> o = transform<double>(p, ss);
assert_g_equal(r, o);
}
} // END SECTION
SECTION("scaling strategies - double to int64") {
using namespace mapnik::geometry;
{
scale_strategy ss(10.0);
point<double> p(-90.31, 35.58);
point<std::int64_t> r(-903, 355);
point<std::int64_t> o = transform<std::int64_t>(p, ss);
assert_g_equal(r, o);
}
{
scale_strategy ss(0.5, -2.0);
point<double> p(-90.3, 35.5);
point<std::int64_t> r(-47, 15);
point<std::int64_t> o = transform<std::int64_t>(p, ss);
assert_g_equal(r, o);
}
{
scale_rounding_strategy ss(0.5, -2.0);
point<double> p(-90.3, 35.5);
point<std::int64_t> r(-47, 16);
point<std::int64_t> o = transform<std::int64_t>(p, ss);
assert_g_equal(r, o);
}
{
// Test underflow and overflow
std::int64_t min = std::numeric_limits<std::int64_t>::min();
std::int64_t max = std::numeric_limits<std::int64_t>::max();
scale_strategy ss(1.0E100);
point<double> p(-90.3, 35.5);
point<std::int64_t> r(min, max);
point<std::int64_t> o = transform<std::int64_t>(p, ss);
assert_g_equal(r, o);
}
{
// Test underflow and overflow
std::int64_t min = std::numeric_limits<std::int64_t>::min();
std::int64_t max = std::numeric_limits<std::int64_t>::max();
scale_rounding_strategy ss(1.0E100);
point<double> p(-90.3, 35.5);
point<std::int64_t> r(min, max);
point<std::int64_t> o = transform<std::int64_t>(p, ss);
assert_g_equal(r, o);
}
{
// Test overrflow and underflow
std::int64_t min = std::numeric_limits<std::int64_t>::min();
std::int64_t max = std::numeric_limits<std::int64_t>::max();
scale_strategy ss(1.0E100);
point<double> p(90.3, -35.5);
point<std::int64_t> r(max, min);
point<std::int64_t> o = transform<std::int64_t>(p, ss);
assert_g_equal(r, o);
}
{
// Test overflow and underflow
std::int64_t min = std::numeric_limits<std::int64_t>::min();
std::int64_t max = std::numeric_limits<std::int64_t>::max();
scale_rounding_strategy ss(1.0E100);
point<double> p(90.3, -35.5);
point<std::int64_t> r(max, min);
point<std::int64_t> o = transform<std::int64_t>(p, ss);
assert_g_equal(r, o);
}
} // END SECTION
} // END TEST CASE