33 lines
1.2 KiB
JavaScript
33 lines
1.2 KiB
JavaScript
import expect from '../../../expect.js';
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import {flipXY} from '../../../../../src/ol/geom/flat/flip.js';
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describe('ol/geom/flat/flip.js', function () {
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describe('flipXY', function () {
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it('can flip XY coordinates', function () {
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const flatCoordinates = flipXY([1, 2, 3, 4], 0, 4, 2);
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expect(flatCoordinates).to.eql([2, 1, 4, 3]);
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});
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it('can flip XY coordinates while preserving other dimensions', function () {
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const flatCoordinates = flipXY([1, 2, 3, 4, 5, 6, 7, 8], 0, 8, 4);
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expect(flatCoordinates).to.eql([2, 1, 3, 4, 6, 5, 7, 8]);
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});
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it('can flip XY coordinates in place', function () {
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const flatCoordinates = [1, 2, 3, 4];
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expect(flipXY(flatCoordinates, 0, 4, 2, flatCoordinates)).to.be(
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flatCoordinates
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);
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expect(flatCoordinates).to.eql([2, 1, 4, 3]);
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});
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it('can flip XY coordinates in place while preserving other dimensions', function () {
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const flatCoordinates = [1, 2, 3, 4, 5, 6, 7, 8, 9];
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expect(flipXY(flatCoordinates, 0, 9, 3, flatCoordinates)).to.be(
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flatCoordinates
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);
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expect(flatCoordinates).to.eql([2, 1, 3, 5, 4, 6, 8, 7, 9]);
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});
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});
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});
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