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| describe("Point", function() {
describe('constructor', function() {
it("creates a point with the given x and y", function() {
var p = new L.Point(1.5, 2.5);
expect(p.x).to.eql(1.5);
expect(p.y).to.eql(2.5);
});
it("rounds the given x and y if the third argument is true", function() {
var p = new L.Point(1.3, 2.7, true);
expect(p.x).to.eql(1);
expect(p.y).to.eql(3);
});
});
describe('#subtract', function() {
it('subtracts the given point from this one', function() {
var a = new L.Point(50, 30),
b = new L.Point(20, 10);
expect(a.subtract(b)).to.eql(new L.Point(30, 20));
});
});
describe('#add', function() {
it('adds given point to this one', function() {
expect(new L.Point(50, 30).add(new L.Point(20, 10))).to.eql(new L.Point(70, 40));
});
});
describe('#divideBy', function() {
it('divides this point by the given amount', function() {
expect(new L.Point(50, 30).divideBy(5)).to.eql(new L.Point(10, 6));
});
});
describe('#multiplyBy', function() {
it('multiplies this point by the given amount', function() {
expect(new L.Point(50, 30).multiplyBy(2)).to.eql(new L.Point(100, 60));
});
});
describe('#floor', function () {
it('returns a new point with floored coordinates', function () {
expect(new L.Point(50.56, 30.123).floor()).to.eql(new L.Point(50, 30));
});
});
describe('#distanceTo', function () {
it('calculates distance between two points', function () {
var p1 = new L.Point(0, 30);
var p2 = new L.Point(40, 0);
expect(p1.distanceTo(p2)).to.eql(50.0);
});
});
describe('#equals', function () {
it('returns true if points are equal', function () {
var p1 = new L.Point(20.4, 50.12);
var p2 = new L.Point(20.4, 50.12);
var p3 = new L.Point(20.5, 50.13);
expect(p1.equals(p2)).to.be(true);
expect(p1.equals(p3)).to.be(false);
});
});
describe('#contains', function () {
it('returns true if the point is bigger in absolute dimensions than the passed one', function () {
var p1 = new L.Point(50, 30),
p2 = new L.Point(-40, 20),
p3 = new L.Point(60, -20),
p4 = new L.Point(-40, -40);
expect(p1.contains(p2)).to.be(true);
expect(p1.contains(p3)).to.be(false);
expect(p1.contains(p4)).to.be(false);
});
});
describe('#toString', function () {
it('formats a string out of point coordinates', function () {
expect(new L.Point(50, 30) + '').to.eql('Point(50, 30)');
});
});
describe('L.point factory', function () {
it('leaves L.Point instances as is', function () {
var p = new L.Point(50, 30);
expect(L.point(p)).to.be(p);
});
it('creates a point out of three arguments', function () {
expect(L.point(50.1, 30.1, true)).to.eql(new L.Point(50, 30));
});
it('creates a point from an array of coordinates', function () {
expect(L.point([50, 30])).to.eql(new L.Point(50, 30));
});
it('does not fail on invalid arguments', function () {
expect(L.point(undefined)).to.be(undefined);
expect(L.point(null)).to.be(null);
});
});
});
|