Files
openlayers/test/spec/ol/rotationconstraint.test.js
Tim Schaub ad62739a6e Use blocked scoped variables
In addition to using const and let, this also upgrades our linter config and removes lint (mostly whitespace).
2018-01-12 00:50:30 -07:00

36 lines
1.2 KiB
JavaScript

import RotationConstraint from '../../../src/ol/RotationConstraint.js';
describe('ol.RotationConstraint', function() {
describe('SnapToZero', function() {
it('returns expected rotation value', function() {
const rotationConstraint = RotationConstraint.createSnapToZero(0.3);
expect(rotationConstraint(0.1, 0)).to.eql(0);
expect(rotationConstraint(0.2, 0)).to.eql(0);
expect(rotationConstraint(0.3, 0)).to.eql(0);
expect(rotationConstraint(0.4, 0)).to.eql(0.4);
expect(rotationConstraint(-0.1, 0)).to.eql(0);
expect(rotationConstraint(-0.2, 0)).to.eql(0);
expect(rotationConstraint(-0.3, 0)).to.eql(0);
expect(rotationConstraint(-0.4, 0)).to.eql(-0.4);
expect(rotationConstraint(1, -0.9)).to.eql(0);
expect(rotationConstraint(1, -0.8)).to.eql(0);
// floating-point arithmetic
expect(rotationConstraint(1, -0.7)).not.to.eql(0);
expect(rotationConstraint(1, -0.6)).to.eql(0.4);
expect(rotationConstraint(-1, 0.9)).to.eql(0);
expect(rotationConstraint(-1, 0.8)).to.eql(0);
// floating-point arithmetic
expect(rotationConstraint(-1, 0.7)).not.to.eql(0);
expect(rotationConstraint(-1, 0.6)).to.eql(-0.4);
});
});
});