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)); expect(new L.Point(-50.56, -30.123).floor()).to.eql(new L.Point(-51, -31)); }); }); describe('#trunc', function () { it('returns a new point with truncated coordinates', function () { expect(new L.Point(50.56, 30.123).trunc()).to.eql(new L.Point(50, 30)); expect(new L.Point(-50.56, -30.123).trunc()).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)'); expect(new L.Point(50.1234567, 30.1234567) + '').to.eql('Point(50.123457, 30.123457)'); }); }); 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("creates a point from an object with x and y properties", function () { expect(L.point({x: 50, y: 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); }); }); });