openlayers
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Build tools and sources for developing OpenLayers based mapping applications
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JavaScript
goog.provide('ol.test.geom.flat.interpolate');
goog.require('ol.geom.flat.interpolate');
describe('ol.geom.flat.interpolate', function() {
describe('ol.geom.flat.interpolate.lineString', function() {
it('returns the expected value for single points', function() {
var flatCoordinates = [0, 1];
var point =
ol.geom.flat.interpolate.lineString(flatCoordinates, 0, 2, 2, 0.5);
expect(point).to.eql([0, 1]);
});
it('returns the expected value for simple line segments', function() {
var flatCoordinates = [0, 1, 2, 3];
var point =
ol.geom.flat.interpolate.lineString(flatCoordinates, 0, 4, 2, 0.5);
expect(point).to.eql([1, 2]);
});
it('returns the expected value when the mid point is an existing ' +
'coordinate',
function() {
var flatCoordinates = [0, 1, 2, 3, 4, 5];
var point = ol.geom.flat.interpolate.lineString(
flatCoordinates, 0, 6, 2, 0.5);
expect(point).to.eql([2, 3]);
});
xit('also when vertices are repeated', function() {
var flatCoordinates = [0, 1, 2, 3, 2, 3, 4, 5];
var point = ol.geom.flat.interpolate.lineString(
flatCoordinates, 0, 6, 2, 0.5);
expect(point).to.eql([2, 3]);
});
it('returns the expected value when the midpoint falls halfway between ' +
'two existing coordinates',
function() {
var flatCoordinates = [0, 1, 2, 3, 4, 5, 6, 7];
var point = ol.geom.flat.interpolate.lineString(
flatCoordinates, 0, 8, 2, 0.5);
expect(point).to.eql([3, 4]);
});
xit('also when vertices are repeated', function() {
var flatCoordinates = [0, 1, 2, 3, 2, 3, 4, 5, 6, 7];
var point = ol.geom.flat.interpolate.lineString(
flatCoordinates, 0, 8, 2, 0.5);
expect(point).to.eql([3, 4]);
});
it('returns the expected value when the coordinates are not evenly spaced',
function() {
var flatCoordinates = [0, 1, 2, 3, 6, 7];
var point = ol.geom.flat.interpolate.lineString(
flatCoordinates, 0, 6, 2, 0.5);
expect(point).to.eql([3, 4]);
});
xit('also when vertices are repeated',
function() {
var flatCoordinates = [0, 1, 2, 3, 2, 3, 6, 7];
var point = ol.geom.flat.interpolate.lineString(
flatCoordinates, 0, 6, 2, 0.5);
expect(point).to.eql([3, 4]);
});
it('returns the expected value when using opt_dest',
function() {
var flatCoordinates = [0, 1, 2, 3, 6, 7];
var point = ol.geom.flat.interpolate.lineString(
flatCoordinates, 0, 6, 2, 0.5, [0, 0]);
expect(point).to.eql([3, 4]);
});
});
});