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Merge pull request #161 from joshlory/drawable-scale-tests

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Add Drawable.prototype.getAABB coverage for scale transforms
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Chris Willis-Ford 2017-09-06 13:46:48 -06:00 committed by GitHub
commit 34fe5435be
1 changed files with 40 additions and 0 deletions
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test/unit/DrawableTests.js
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@ -100,3 +100,43 @@ test('rotate by non-right-angles', t => {
t.end();
});
test('scale', t => {
const expected = new Rectangle();
const drawable = new Drawable();
drawable.skin = new MockSkin();
drawable.skin.size = [200, 50];
drawable.updateProperties({scale: [100, 50]});
expected.initFromBounds(0, 200, -25, 0);
t.same(snapToNearest(drawable.getAABB()), expected);
drawable.skin.setRotationCenter(0, 25);
expected.initFromBounds(0, 200, -12.5, 12.5);
t.same(snapToNearest(drawable.getAABB()), expected);
drawable.skin.setRotationCenter(150, 50);
drawable.updateProperties({scale: [50, 50]});
expected.initFromBounds(-75, 25, 0, 25);
t.same(snapToNearest(drawable.getAABB()), expected);
t.end();
});
test('rotate and scale', t => {
const expected = new Rectangle();
const drawable = new Drawable();
drawable.skin = new MockSkin();
drawable.skin.size = [100, 1000];
drawable.skin.setRotationCenter(50, 50);
expected.initFromBounds(-50, 50, -950, 50);
t.same(snapToNearest(drawable.getAABB()), expected);
drawable.updateProperties({scale: [40, 60]});
drawable.skin.setRotationCenter(50, 50);
expected.initFromBounds(-20, 20, -570, 30);
t.same(snapToNearest(drawable.getAABB()), expected);
t.end();
});