libcruft-util/test/aabb.cpp

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#include "aabb.hpp"
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#include "tap.hpp"
#include <tuple>
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int
main (int, char**)
{
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util::TAP::logger tap;
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{
// Test contraction
util::AABB2f box {
{ 2, 2 },
{ 8, 8 }
};
box.contract (2.f);
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tap.expect_eq<util::AABB2f, util::AABB2f> (box, { { 3, 3 }, { 7, 7 }}, "over contraction");
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}
{
// Test expansion
util::AABB2f box {
{ 2, 2 },
{ 8, 8 }
};
box.expand (2.f);
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tap.expect_eq<util::AABB2f, util::AABB2f> (box, { { 1, 1 }, { 9, 9 }}, "expansion");
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}
{
// Ensure we don't wrap-around on unsigned position types when contracting
util::AABB2f small {
{ 0, 0 },
{ 1, 1 }
};
small.contract (10);
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tap.expect_eq<util::AABB2f, util::AABB2f> (small, { { 0.5f, 0.5f }, { 0.5f, 0.5f }}, "unsigned over-contract");
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}
}