test.js

var points = [
    {"x":224.55,"y":250.15},{"x":226.91,"y":244.19},{"x":233.31,"y":241.45},{"x":234.98,"y":236.06},
    {"x":244.21,"y":232.76},{"x":262.59,"y":215.31},{"x":267.76,"y":213.81},{"x":273.57,"y":201.84},
    {"x":273.12,"y":192.16},{"x":277.62,"y":189.03},{"x":280.36,"y":181.41},{"x":286.51,"y":177.74},
    {"x":292.41,"y":159.37},{"x":296.91,"y":155.64},{"x":314.95,"y":151.37},{"x":319.75,"y":145.16},
    {"x":330.33,"y":137.57},{"x":341.48,"y":139.96},{"x":369.98,"y":137.89},{"x":387.39,"y":142.51},
    {"x":391.28,"y":139.39},{"x":409.52,"y":141.14},{"x":414.82,"y":139.75},{"x":427.72,"y":127.30},
    {"x":439.60,"y":119.74},{"x":474.93,"y":107.87},{"x":486.51,"y":106.75},{"x":489.20,"y":109.45},
    {"x":493.79,"y":108.63},{"x":504.74,"y":119.66},{"x":512.96,"y":122.35},{"x":518.63,"y":120.89},
    {"x":524.09,"y":126.88},{"x":529.57,"y":127.86},{"x":534.21,"y":140.93},{"x":539.27,"y":147.24},
    {"x":567.69,"y":148.91},{"x":575.25,"y":157.26},{"x":580.62,"y":158.15},{"x":601.53,"y":156.85},
    {"x":617.74,"y":159.86},{"x":622.00,"y":167.04},{"x":629.55,"y":194.60},{"x":638.90,"y":195.61},
    {"x":641.26,"y":200.81},{"x":651.77,"y":204.56},{"x":671.55,"y":222.55},{"x":683.68,"y":217.45},
    {"x":695.25,"y":219.15},{"x":700.64,"y":217.98},{"x":703.12,"y":214.36},{"x":712.26,"y":215.87},
    {"x":721.49,"y":212.81},{"x":727.81,"y":213.36},{"x":729.98,"y":208.73},{"x":735.32,"y":208.20},
    {"x":739.94,"y":204.77},{"x":769.98,"y":208.42},{"x":779.60,"y":216.87},{"x":784.20,"y":218.16},
    {"x":800.24,"y":214.62},{"x":810.53,"y":219.73},{"x":817.19,"y":226.82},{"x":820.77,"y":236.17},
    {"x":827.23,"y":236.16},{"x":829.89,"y":239.89},{"x":851.00,"y":248.94},{"x":859.88,"y":255.49},
    {"x":865.21,"y":268.53},{"x":857.95,"y":280.30},{"x":865.48,"y":291.45},{"x":866.81,"y":298.66},
    {"x":864.68,"y":302.71},{"x":867.79,"y":306.17},{"x":859.87,"y":311.37},{"x":860.08,"y":314.35},
    {"x":858.29,"y":314.94},{"x":858.10,"y":327.60},{"x":854.54,"y":335.40},{"x":860.92,"y":343.00},
    {"x":856.43,"y":350.15},{"x":851.42,"y":352.96},{"x":849.84,"y":359.59},{"x":854.56,"y":365.53},
    {"x":849.74,"y":370.38},{"x":844.09,"y":371.89},{"x":844.75,"y":380.44},{"x":841.52,"y":383.67},
    {"x":839.57,"y":390.40},{"x":845.59,"y":399.05},{"x":848.40,"y":407.55},{"x":843.71,"y":411.30},
    {"x":844.09,"y":419.88},{"x":839.51,"y":432.76},{"x":841.33,"y":441.04},{"x":847.62,"y":449.22},
    {"x":847.16,"y":458.44},{"x":851.38,"y":462.79},{"x":853.97,"y":471.15},{"x":866.36,"y":480.77}
];

var simplified = [
    {"x":224.55,"y":250.15},{"x":267.76,"y":213.81},{"x":296.91,"y":155.64},{"x":330.33,"y":137.57},
    {"x":409.52,"y":141.14},{"x":439.60,"y":119.74},{"x":486.51,"y":106.75},{"x":529.57,"y":127.86},
    {"x":539.27,"y":147.24},{"x":617.74,"y":159.86},{"x":629.55,"y":194.60},{"x":671.55,"y":222.55},
    {"x":727.81,"y":213.36},{"x":739.94,"y":204.77},{"x":769.98,"y":208.42},{"x":779.60,"y":216.87},
    {"x":800.24,"y":214.62},{"x":820.77,"y":236.17},{"x":859.88,"y":255.49},{"x":865.21,"y":268.53},
    {"x":857.95,"y":280.30},{"x":867.79,"y":306.17},{"x":859.87,"y":311.37},{"x":854.54,"y":335.40},
    {"x":860.92,"y":343.00},{"x":849.84,"y":359.59},{"x":854.56,"y":365.53},{"x":844.09,"y":371.89},
    {"x":839.57,"y":390.40},{"x":848.40,"y":407.55},{"x":839.51,"y":432.76},{"x":853.97,"y":471.15},
    {"x":866.36,"y":480.77}
];

var simplify = require('./simplify'),
	assert = require('assert');

describe('simplify', function () {
	it('should simplify points correctly with the given tolerance', function () {
		var result = simplify(points, 5);
		assert.deepEqual(result, simplified);
	});
});