405d5666e2
This commit adds tests for `intersectsExtent` of Point, LineString, Polygon, MultiPoint, MultiLineString, MultiPolygon and GeometryCollection. It also adds a basic test for `getExtent` of MultiPolygon
371 lines
11 KiB
JavaScript
371 lines
11 KiB
JavaScript
goog.provide('ol.test.geom.LineString');
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describe('ol.geom.LineString', function() {
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it('can be constructed with a null geometry', function() {
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expect(function() {
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var lineString = new ol.geom.LineString(null);
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lineString = lineString; // suppress gjslint warning
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}).not.to.throwException();
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});
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describe('construct empty', function() {
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var lineString;
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beforeEach(function() {
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lineString = new ol.geom.LineString([]);
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});
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it('defaults to layout XY', function() {
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expect(lineString.getLayout()).to.be(ol.geom.GeometryLayout.XY);
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});
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it('has empty coordinates', function() {
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expect(lineString.getCoordinates()).to.be.empty();
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});
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it('has an empty extent', function() {
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expect(ol.extent.isEmpty(lineString.getExtent())).to.be(true);
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});
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it('has empty flat coordinates', function() {
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expect(lineString.getFlatCoordinates()).to.be.empty();
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});
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it('has stride the expected stride', function() {
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expect(lineString.getStride()).to.be(2);
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});
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it('can append coordinates', function() {
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lineString.appendCoordinate([1, 2]);
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expect(lineString.getCoordinates()).to.eql([[1, 2]]);
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lineString.appendCoordinate([3, 4]);
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expect(lineString.getCoordinates()).to.eql([[1, 2], [3, 4]]);
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});
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});
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describe('construct with 2D coordinates', function() {
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var lineString;
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beforeEach(function() {
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lineString = new ol.geom.LineString([[1, 2], [3, 4]]);
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});
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it('has the expected layout', function() {
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expect(lineString.getLayout()).to.be(ol.geom.GeometryLayout.XY);
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});
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it('has the expected coordinates', function() {
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expect(lineString.getCoordinates()).to.eql([[1, 2], [3, 4]]);
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});
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it('has the expected extent', function() {
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expect(lineString.getExtent()).to.eql([1, 2, 3, 4]);
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});
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it('has the expected flat coordinates', function() {
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expect(lineString.getFlatCoordinates()).to.eql([1, 2, 3, 4]);
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});
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it('has stride the expected stride', function() {
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expect(lineString.getStride()).to.be(2);
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});
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describe('#intersectsExtent', function() {
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it('return false for non matching extent', function() {
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expect(lineString.intersectsExtent([1, 3, 1.9, 4])).to.be(false);
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});
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it('return true for extent on midpoint', function() {
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expect(lineString.intersectsExtent([2, 3, 4, 3])).to.be(true);
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});
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it('returns true for the geom\'s own extent', function() {
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expect(lineString.intersectsExtent(lineString.getExtent())).to.be(true);
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});
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});
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});
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describe('construct with 3D coordinates', function() {
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var lineString;
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beforeEach(function() {
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lineString = new ol.geom.LineString([[1, 2, 3], [4, 5, 6]]);
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});
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it('has the expected layout', function() {
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expect(lineString.getLayout()).to.be(ol.geom.GeometryLayout.XYZ);
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});
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it('has the expected coordinates', function() {
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expect(lineString.getCoordinates()).to.eql([[1, 2, 3], [4, 5, 6]]);
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});
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it('has the expected extent', function() {
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expect(lineString.getExtent()).to.eql([1, 2, 4, 5]);
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});
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it('has the expected flat coordinates', function() {
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expect(lineString.getFlatCoordinates()).to.eql([1, 2, 3, 4, 5, 6]);
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});
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it('has the expected stride', function() {
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expect(lineString.getStride()).to.be(3);
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});
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describe('#intersectsExtent', function() {
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it('return false for non matching extent', function() {
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expect(lineString.intersectsExtent([1, 3, 1.9, 4])).to.be(false);
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});
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it('return true for extent on midpoint', function() {
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expect(lineString.intersectsExtent([2, 3, 4, 3])).to.be(true);
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});
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it('returns true for the geom\'s own extent', function() {
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expect(lineString.intersectsExtent(lineString.getExtent())).to.be(true);
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});
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});
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});
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describe('construct with 3D coordinates and layout XYM', function() {
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var lineString;
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beforeEach(function() {
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lineString = new ol.geom.LineString(
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[[1, 2, 3], [4, 5, 6]], ol.geom.GeometryLayout.XYM);
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});
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it('has the expected layout', function() {
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expect(lineString.getLayout()).to.be(ol.geom.GeometryLayout.XYM);
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});
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it('has the expected coordinates', function() {
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expect(lineString.getCoordinates()).to.eql([[1, 2, 3], [4, 5, 6]]);
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});
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it('has the expected extent', function() {
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expect(lineString.getExtent()).to.eql([1, 2, 4, 5]);
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});
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it('has the expected flat coordinates', function() {
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expect(lineString.getFlatCoordinates()).to.eql([1, 2, 3, 4, 5, 6]);
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});
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it('has the expected stride', function() {
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expect(lineString.getStride()).to.be(3);
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});
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describe('#intersectsExtent', function() {
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it('return false for non matching extent', function() {
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expect(lineString.intersectsExtent([1, 3, 1.9, 4])).to.be(false);
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});
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it('return true for extent on midpoint', function() {
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expect(lineString.intersectsExtent([2, 3, 4, 3])).to.be(true);
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});
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it('returns true for the geom\'s own extent', function() {
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expect(lineString.intersectsExtent(lineString.getExtent())).to.be(true);
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});
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});
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});
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describe('construct with 4D coordinates', function() {
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var lineString;
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beforeEach(function() {
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lineString = new ol.geom.LineString([[1, 2, 3, 4], [5, 6, 7, 8]]);
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});
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it('has the expected layout', function() {
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expect(lineString.getLayout()).to.be(ol.geom.GeometryLayout.XYZM);
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});
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it('has the expected coordinates', function() {
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expect(lineString.getCoordinates()).to.eql([[1, 2, 3, 4], [5, 6, 7, 8]]);
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});
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it('has the expected extent', function() {
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expect(lineString.getExtent()).to.eql([1, 2, 5, 6]);
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});
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it('has the expected flat coordinates', function() {
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expect(lineString.getFlatCoordinates()).to.eql([1, 2, 3, 4, 5, 6, 7, 8]);
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});
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it('has the expected stride', function() {
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expect(lineString.getStride()).to.be(4);
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});
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describe('#intersectsExtent', function() {
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it('return false for non matching extent', function() {
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expect(lineString.intersectsExtent([1, 3, 1.9, 4])).to.be(false);
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});
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it('return true for extent on midpoint', function() {
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expect(lineString.intersectsExtent([2, 3, 4, 3])).to.be(true);
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});
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it('returns true for the geom\'s own extent', function() {
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expect(lineString.intersectsExtent(lineString.getExtent())).to.be(true);
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});
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});
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});
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describe('with a simple line string', function() {
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var lineString;
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beforeEach(function() {
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lineString = new ol.geom.LineString(
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[[0, 0], [1.5, 1], [3, 3], [5, 1], [6, 3.5], [7, 5]]);
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});
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describe('#getFirstCoordinate', function() {
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it('returns the expected result', function() {
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expect(lineString.getFirstCoordinate()).to.eql([0, 0]);
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});
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});
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describe('#getFlatMidpoint', function() {
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it('returns the expected result', function() {
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var midpoint = lineString.getFlatMidpoint();
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expect(midpoint).to.be.an(Array);
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expect(midpoint).to.have.length(2);
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expect(midpoint[0]).to.roughlyEqual(4, 1e-1);
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expect(midpoint[1]).to.roughlyEqual(2, 1e-1);
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});
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});
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describe('#getLastCoordinate', function() {
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it('returns the expected result', function() {
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expect(lineString.getLastCoordinate()).to.eql([7, 5]);
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});
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});
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describe('#getSimplifiedGeometry', function() {
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it('returns the expectedResult', function() {
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var simplifiedGeometry = lineString.getSimplifiedGeometry(1);
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expect(simplifiedGeometry).to.be.an(ol.geom.LineString);
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expect(simplifiedGeometry.getCoordinates()).to.eql(
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[[0, 0], [3, 3], [5, 1], [7, 5]]);
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});
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it('caches by resolution', function() {
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var simplifiedGeometry1 = lineString.getSimplifiedGeometry(1);
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var simplifiedGeometry2 = lineString.getSimplifiedGeometry(1);
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expect(simplifiedGeometry1).to.be(simplifiedGeometry2);
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});
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it('invalidates the cache when the geometry changes', function() {
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var simplifiedGeometry1 = lineString.getSimplifiedGeometry(1);
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lineString.setCoordinates(lineString.getCoordinates());
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var simplifiedGeometry2 = lineString.getSimplifiedGeometry(1);
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expect(simplifiedGeometry1).not.to.be(simplifiedGeometry2);
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});
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it('remembers the minimum squared tolerance', function() {
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sinon.spy(lineString, 'getSimplifiedGeometryInternal');
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var simplifiedGeometry1 = lineString.getSimplifiedGeometry(0.05);
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expect(lineString.getSimplifiedGeometryInternal.callCount).to.be(1);
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expect(simplifiedGeometry1).to.be(lineString);
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var simplifiedGeometry2 = lineString.getSimplifiedGeometry(0.01);
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expect(lineString.getSimplifiedGeometryInternal.callCount).to.be(1);
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expect(simplifiedGeometry2).to.be(lineString);
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});
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});
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});
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describe('with a simple XYM coordinates', function() {
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var lineString;
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beforeEach(function() {
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lineString = new ol.geom.LineString(
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[[1, 2, 3], [4, 5, 6]], ol.geom.GeometryLayout.XYM);
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});
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describe('#getCoordinateAtM', function() {
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it('returns the expected value', function() {
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expect(lineString.getCoordinateAtM(2, false)).to.be(null);
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expect(lineString.getCoordinateAtM(2, true)).to.eql([1, 2, 2]);
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expect(lineString.getCoordinateAtM(3, false)).to.eql([1, 2, 3]);
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expect(lineString.getCoordinateAtM(3, true)).to.eql([1, 2, 3]);
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expect(lineString.getCoordinateAtM(4, false)).to.eql([2, 3, 4]);
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expect(lineString.getCoordinateAtM(4, true)).to.eql([2, 3, 4]);
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expect(lineString.getCoordinateAtM(5, false)).to.eql([3, 4, 5]);
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expect(lineString.getCoordinateAtM(5, true)).to.eql([3, 4, 5]);
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expect(lineString.getCoordinateAtM(6, false)).to.eql([4, 5, 6]);
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expect(lineString.getCoordinateAtM(6, true)).to.eql([4, 5, 6]);
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expect(lineString.getCoordinateAtM(7, false)).to.eql(null);
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expect(lineString.getCoordinateAtM(7, true)).to.eql([4, 5, 7]);
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});
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});
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});
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describe('with several XYZM coordinates', function() {
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var lineString;
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beforeEach(function() {
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lineString = new ol.geom.LineString([
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[0, 0, 0, 0],
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[1, -1, 2, 1],
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[2, -2, 4, 2],
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[4, -4, 8, 4],
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[8, -8, 16, 8],
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[12, -12, 24, 12],
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[14, -14, 28, 14],
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[15, -15, 30, 15],
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[16, -16, 32, 16],
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[18, -18, 36, 18],
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[22, -22, 44, 22]
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]);
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});
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describe('#getCoordinateAtM', function() {
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it('returns the expected value', function() {
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expect(lineString.getLayout()).to.be(ol.geom.GeometryLayout.XYZM);
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var m;
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for (m = 0; m <= 22; m += 0.5) {
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expect(lineString.getCoordinateAtM(m, true)).to.eql(
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[m, -m, 2 * m, m]);
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}
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});
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});
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});
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});
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goog.require('ol.extent');
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goog.require('ol.geom.GeometryLayout');
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goog.require('ol.geom.LineString');
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