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.reverse');
goog.require('ol.geom.flat.reverse');
describe('ol.geom.flat.reverse', function() {
describe('ol.geom.flat.reverse.coordinates', function() {
describe('with a stride of 2', function() {
it('can reverse empty flat coordinates', function() {
var flatCoordinates = [];
ol.geom.flat.reverse.coordinates(
flatCoordinates, 0, flatCoordinates.length, 2);
expect(flatCoordinates).to.be.empty();
});
it('can reverse one flat coordinates', function() {
var flatCoordinates = [1, 2];
ol.geom.flat.reverse.coordinates(
flatCoordinates, 0, flatCoordinates.length, 2);
expect(flatCoordinates).to.eql([1, 2]);
});
it('can reverse two flat coordinates', function() {
var flatCoordinates = [1, 2, 3, 4];
ol.geom.flat.reverse.coordinates(
flatCoordinates, 0, flatCoordinates.length, 2);
expect(flatCoordinates).to.eql([3, 4, 1, 2]);
});
it('can reverse three flat coordinates', function() {
var flatCoordinates = [1, 2, 3, 4, 5, 6];
ol.geom.flat.reverse.coordinates(
flatCoordinates, 0, flatCoordinates.length, 2);
expect(flatCoordinates).to.eql([5, 6, 3, 4, 1, 2]);
});
it('can reverse four flat coordinates', function() {
var flatCoordinates = [1, 2, 3, 4, 5, 6, 7, 8];
ol.geom.flat.reverse.coordinates(
flatCoordinates, 0, flatCoordinates.length, 2);
expect(flatCoordinates).to.eql([7, 8, 5, 6, 3, 4, 1, 2]);
});
});
describe('with a stride of 3', function() {
it('can reverse empty flat coordinates', function() {
var flatCoordinates = [];
ol.geom.flat.reverse.coordinates(
flatCoordinates, 0, flatCoordinates.length, 3);
expect(flatCoordinates).to.be.empty();
});
it('can reverse one flat coordinates', function() {
var flatCoordinates = [1, 2, 3];
ol.geom.flat.reverse.coordinates(
flatCoordinates, 0, flatCoordinates.length, 3);
expect(flatCoordinates).to.eql([1, 2, 3]);
});
it('can reverse two flat coordinates', function() {
var flatCoordinates = [1, 2, 3, 4, 5, 6];
ol.geom.flat.reverse.coordinates(
flatCoordinates, 0, flatCoordinates.length, 3);
expect(flatCoordinates).to.eql([4, 5, 6, 1, 2, 3]);
});
it('can reverse three flat coordinates', function() {
var flatCoordinates = [1, 2, 3, 4, 5, 6, 7, 8, 9];
ol.geom.flat.reverse.coordinates(
flatCoordinates, 0, flatCoordinates.length, 3);
expect(flatCoordinates).to.eql([7, 8, 9, 4, 5, 6, 1, 2, 3]);
});
it('can reverse four flat coordinates', function() {
var flatCoordinates = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12];
ol.geom.flat.reverse.coordinates(
flatCoordinates, 0, flatCoordinates.length, 3);
expect(flatCoordinates).to.eql([10, 11, 12, 7, 8, 9, 4, 5, 6, 1, 2, 3]);
});
});
describe('with a stride of 4', function() {
it('can reverse empty flat coordinates', function() {
var flatCoordinates = [];
ol.geom.flat.reverse.coordinates(
flatCoordinates, 0, flatCoordinates.length, 4);
expect(flatCoordinates).to.be.empty();
});
it('can reverse one flat coordinates', function() {
var flatCoordinates = [1, 2, 3, 4];
ol.geom.flat.reverse.coordinates(
flatCoordinates, 0, flatCoordinates.length, 4);
expect(flatCoordinates).to.eql([1, 2, 3, 4]);
});
it('can reverse two flat coordinates', function() {
var flatCoordinates = [1, 2, 3, 4, 5, 6, 7, 8];
ol.geom.flat.reverse.coordinates(
flatCoordinates, 0, flatCoordinates.length, 4);
expect(flatCoordinates).to.eql([5, 6, 7, 8, 1, 2, 3, 4]);
});
it('can reverse three flat coordinates', function() {
var flatCoordinates = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12];
ol.geom.flat.reverse.coordinates(
flatCoordinates, 0, flatCoordinates.length, 4);
expect(flatCoordinates).to.eql([9, 10, 11, 12, 5, 6, 7, 8, 1, 2, 3, 4]);
});
it('can reverse four flat coordinates', function() {
var flatCoordinates =
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16];
ol.geom.flat.reverse.coordinates(
flatCoordinates, 0, flatCoordinates.length, 4);
expect(flatCoordinates).to.eql(
[13, 14, 15, 16, 9, 10, 11, 12, 5, 6, 7, 8, 1, 2, 3, 4]);
});
});
});
});