248 lines
8.1 KiB
JavaScript
248 lines
8.1 KiB
JavaScript
import _ol_coordinate_ from '../../../src/ol/coordinate.js';
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import _ol_geom_Circle_ from '../../../src/ol/geom/Circle.js';
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describe('ol.coordinate', function() {
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describe('#add', function() {
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var coordinate, delta;
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beforeEach(function() {
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coordinate = [50.73, 7.1];
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delta = [-2, 3];
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});
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it('returns a coordinate', function() {
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var returnedCoordinate = _ol_coordinate_.add(coordinate, delta);
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expect(returnedCoordinate).to.be.an('array');
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expect(returnedCoordinate).to.have.length(2);
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});
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it('adds the delta', function() {
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var returnedCoordinate = _ol_coordinate_.add(coordinate, delta);
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expect(returnedCoordinate[0]).to.eql(48.73);
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expect(returnedCoordinate[1]).to.eql(10.1);
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});
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it('modifies in place', function() {
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_ol_coordinate_.add(coordinate, delta);
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expect(coordinate[0]).to.eql(48.73);
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expect(coordinate[1]).to.eql(10.1);
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});
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});
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describe('#equals', function() {
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var cologne = [50.93333, 6.95];
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var bonn1 = [50.73, 7.1];
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var bonn2 = [50.73000, 7.10000];
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it('compares correctly', function() {
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var bonnEqualsBonn = _ol_coordinate_.equals(bonn1, bonn2);
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var bonnEqualsCologne = _ol_coordinate_.equals(bonn1, cologne);
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expect(bonnEqualsBonn).to.be(true);
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expect(bonnEqualsCologne).to.be(false);
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});
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});
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describe('#format', function() {
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var coordinate;
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beforeEach(function() {
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coordinate = [6.6123, 46.7919];
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});
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it('rounds the values', function() {
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var string = _ol_coordinate_.format(coordinate, '{x} {y}', 0);
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expect(string).to.eql('7 47');
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});
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it('handles the optional fractionDigits param', function() {
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var string = _ol_coordinate_.format(coordinate, '{x} {y}', 3);
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expect(string).to.eql('6.612 46.792');
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});
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});
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describe('#createStringXY', function() {
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var coordinate, created, formatted;
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beforeEach(function() {
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coordinate = [6.6123, 46.7919];
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created = null;
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formatted = null;
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});
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it('returns a CoordinateFormatType', function() {
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created = _ol_coordinate_.createStringXY();
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expect(created).to.be.a('function');
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formatted = created(coordinate);
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expect(formatted).to.be.a('string');
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expect(formatted).to.eql('7, 47');
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});
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it('respects opt_fractionDigits', function() {
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created = _ol_coordinate_.createStringXY(3);
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expect(created).to.be.a('function');
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formatted = created(coordinate);
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expect(formatted).to.be.a('string');
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expect(formatted).to.eql('6.612, 46.792');
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});
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});
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describe('#closestOnCircle', function() {
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var center = [5, 10];
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var circle = new _ol_geom_Circle_(center, 10);
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it('can find the closest point on circle', function() {
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expect(_ol_coordinate_.closestOnCircle([-20, 10], circle))
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.to.eql([-5, 10]);
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});
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it('can handle coordinate equal circle center', function() {
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expect(_ol_coordinate_.closestOnCircle(center, circle))
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.to.eql([15, 10]);
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});
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});
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describe('#closestOnSegment', function() {
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it('can handle points where the foot of the perpendicular is closest',
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function() {
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var point = [2, 5];
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var segment = [[-5, 0], [10, 0]];
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expect(_ol_coordinate_.closestOnSegment(point, segment))
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.to.eql([2, 0]);
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});
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it('can handle points where the foot of the perpendicular is not closest',
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function() {
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var point = [0, -6];
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var segment = [[-5, 0], [0, -1]];
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expect(_ol_coordinate_.closestOnSegment(point, segment))
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.to.eql([0, -1]);
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});
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});
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describe('#format', function() {
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it('can deal with undefined coordinate', function() {
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expect(_ol_coordinate_.format()).to.be('');
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});
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it('formats a coordinate into a template (default precision is 0)',
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function() {
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var coord = [7.85, 47.983333];
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var template = 'Coordinate is ({x}|{y}).';
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var got = _ol_coordinate_.format(coord, template);
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var expected = 'Coordinate is (8|48).';
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expect(got).to.be(expected);
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});
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it('formats a coordinate into a template and respects precision)',
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function() {
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var coord = [7.85, 47.983333];
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var template = 'Coordinate is ({x}|{y}).';
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var got = _ol_coordinate_.format(coord, template, 2);
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var expected = 'Coordinate is (7.85|47.98).';
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expect(got).to.be(expected);
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});
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});
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describe('#rotate', function() {
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it('can rotate point in place', function() {
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var coord = [7.85, 47.983333];
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var rotateRadians = Math.PI / 2; // 90 degrees
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_ol_coordinate_.rotate(coord, rotateRadians);
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expect(coord[0].toFixed(6)).to.eql('-47.983333');
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expect(coord[1].toFixed(6)).to.eql('7.850000');
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});
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it('returns the rotated point', function() {
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var coord = [7.85, 47.983333];
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var rotateRadians = Math.PI / 2; // 90 degrees
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var rotated = _ol_coordinate_.rotate(coord, rotateRadians);
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expect(rotated[0].toFixed(7)).to.eql('-47.9833330');
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expect(rotated[1].toFixed(7)).to.eql('7.8500000');
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});
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});
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describe('#scale', function() {
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it('can scale point in place', function() {
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var coord = [7.85, 47.983333];
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var scale = 1.2;
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_ol_coordinate_.scale(coord, scale);
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expect(coord[0].toFixed(7)).to.eql('9.4200000');
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expect(coord[1].toFixed(7)).to.eql('57.5799996');
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});
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it('returns the scaled point', function() {
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var coord = [7.85, 47.983333];
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var scale = 1.2;
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var scaledCoord = _ol_coordinate_.scale(coord, scale);
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expect(scaledCoord[0].toFixed(7)).to.eql('9.4200000');
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expect(scaledCoord[1].toFixed(7)).to.eql('57.5799996');
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});
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});
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describe('#sub', function() {
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it('can subtract from point in place', function() {
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var coord = [47, 11];
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var delta = [1, -1];
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_ol_coordinate_.sub(coord, delta);
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expect(coord[0]).to.eql(46);
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expect(coord[1]).to.eql(12);
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});
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it('can subtract from point in place', function() {
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var coord = [47, 11];
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var delta = [1, -1];
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var subtracted = _ol_coordinate_.sub(coord, delta);
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expect(subtracted[0]).to.eql(46);
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expect(subtracted[1]).to.eql(12);
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});
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});
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describe('#squaredDistanceToSegment', function() {
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it('can handle points where the foot of the perpendicular is closest',
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function() {
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var point = [2, 5];
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var segment = [[-5, 0], [10, 0]];
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expect(_ol_coordinate_.squaredDistanceToSegment(point, segment))
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.to.eql(25);
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});
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it('can handle points where the foot of the perpendicular is not closest',
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function() {
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var point = [0, -6];
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var segment = [[-5, 0], [0, -1]];
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expect(_ol_coordinate_.squaredDistanceToSegment(point, segment))
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.to.eql(25);
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});
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});
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describe('#toStringHDMS', function() {
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it('returns the empty string on undefined input', function() {
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var got = _ol_coordinate_.toStringHDMS();
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var expected = '';
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expect(got).to.be(expected);
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});
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it('formats with zero fractional digits as default', function() {
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var coord = [7.85, 47.983333];
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var got = _ol_coordinate_.toStringHDMS(coord);
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var expected = '47° 59′ 00″ N 7° 51′ 00″ E';
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expect(got).to.be(expected);
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});
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it('formats with given fractional digits, if passed', function() {
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var coord = [7.85, 47.983333];
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var got = _ol_coordinate_.toStringHDMS(coord, 3);
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var expected = '47° 58′ 59.999″ N 7° 51′ 00.000″ E';
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expect(got).to.be(expected);
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});
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});
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describe('#toStringXY', function() {
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it('formats with zero fractional digits as default', function() {
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var coord = [7.85, 47.983333];
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var got = _ol_coordinate_.toStringXY(coord);
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var expected = '8, 48';
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expect(got).to.be(expected);
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});
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it('formats with given fractional digits, if passed', function() {
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var coord = [7.85, 47.983333];
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var got = _ol_coordinate_.toStringXY(coord, 2);
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var expected = '7.85, 47.98';
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expect(got).to.be(expected);
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});
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});
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});
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