42 lines
1.4 KiB
JavaScript
42 lines
1.4 KiB
JavaScript
xdescribe("Projection.Mercator", function() {
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var p = L.Projection.Mercator;
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beforeEach(function() {
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function almostEqual(a, b, p) {
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return Math.abs(a - b) <= (p || 1.0E-12);
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};
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this.addMatchers({
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toAlmostEqual: function(expected, margin) {
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var p1 = this.actual,
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p2 = expected;
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return almostEqual(p1.x, p2.x, margin) && almostEqual(p1.y, p2.y, margin);
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}
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});
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});
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describe("#project", function() {
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it("should do projection properly", function() {
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//edge cases
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expect(p.project(new L.LatLng(0, 0))).toAlmostEqual(new L.Point(0, 0));
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expect(p.project(new L.LatLng(90, 180))).toAlmostEqual(new L.Point(-Math.PI, Math.PI));
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expect(p.project(new L.LatLng(-90, -180))).toAlmostEqual(new L.Point(-Math.PI, -Math.PI));
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expect(p.project(new L.LatLng(50, 30))).toAlmostEqual(new L.Point(0.523598775598, 1.010683188683));
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});
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});
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describe("#unproject", function() {
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it("should do unprojection properly", function() {
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function pr(point) {
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return p.project(p.unproject(point));
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}
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expect(pr(new L.Point(0, 0))).toAlmostEqual(new L.Point(0, 0));
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expect(pr(new L.Point(-Math.PI, Math.PI))).toAlmostEqual(new L.Point(-Math.PI, Math.PI));
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expect(pr(new L.Point(-Math.PI, -Math.PI))).toAlmostEqual(new L.Point(-Math.PI, -Math.PI));
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expect(pr(new L.Point(0.523598775598, 1.010683188683))).toAlmostEqual(new L.Point(0.523598775598, 1.010683188683));
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});
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});
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}); |