54 lines
1.7 KiB
JavaScript
54 lines
1.7 KiB
JavaScript
goog.require('ol.View2D');
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describe('ol.View2D', function() {
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describe('create constraints', function() {
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describe('create resolution constraint', function() {
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describe('with no options', function() {
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it('gives a correct resolution constraint function', function() {
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var options = {};
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var fn = ol.View2D.createConstraints_(options).resolution;
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expect(fn(156543.03392804097, 0))
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.toRoughlyEqual(156543.03392804097, 1e-9);
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expect(fn(78271.51696402048, 0))
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.toRoughlyEqual(78271.51696402048, 1e-10);
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});
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});
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describe('with maxResolution, numZoomLevels, and zoomFactor options',
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function() {
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it('gives a correct resolution constraint function', function() {
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var options = {
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maxResolution: 81,
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numZoomLevels: 4,
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zoomFactor: 3
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};
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var fn = ol.View2D.createConstraints_(options).resolution;
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expect(fn(82, 0)).toEqual(81);
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expect(fn(81, 0)).toEqual(81);
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expect(fn(27, 0)).toEqual(27);
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expect(fn(9, 0)).toEqual(9);
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expect(fn(3, 0)).toEqual(3);
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expect(fn(2, 0)).toEqual(3);
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});
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});
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describe('with resolutions', function() {
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it('gives a correct resolution constraint function', function() {
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var options = {
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resolutions: [97, 76, 65, 54, 0.45]
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};
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var fn = ol.View2D.createConstraints_(options).resolution;
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expect(fn(97, 0)).toEqual(97);
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expect(fn(76, 0)).toEqual(76);
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expect(fn(65, 0)).toEqual(65);
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expect(fn(54, 0)).toEqual(54);
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expect(fn(0.45, 0)).toEqual(0.45);
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});
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});
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});
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});
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});
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