s-melnikov

:root {
  --ease-in-quad:       cubic-bezier(0.55, 0.085, 0.68, 0.53);
  --ease-in-cubic:      cubic-bezier(0.55, 0.055, 0.675, 0.19);
  --ease-in-quart:      cubic-bezier(0.895, 0.03, 0.685, 0.22);
  --ease-in-quint:      cubic-bezier(0.755, 0.05, 0.855, 0.06);
  --ease-in-expo:       cubic-bezier(0.95, 0.05, 0.795, 0.035);
  --ease-in-circ:       cubic-bezier(0.6, 0.04, 0.98, 0.335);
  --ease-out-quad:      cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out-cubic:     cubic-bezier(0.215, 0.61, 0.355, 1);
  --ease-out-quart:     cubic-bezier(0.165, 0.84, 0.44, 1);

s-melnikov

/*
 * Easing Functions - inspired from http://gizma.com/easing/
 * only considering the t value for the range [0, 1] => [0, 1]
 */
EasingFunctions = {
  // no easing, no acceleration
  linear: function (t) { return t },
  // accelerating from zero velocity
  easeInQuad: function (t) { return t*t },
  // decelerating to zero velocity

s-melnikov

/**
 * A Javascript test runner in 20 lines of code
 * From http://joakimbeng.eu01.aws.af.cm/a-javascript-test-runner-in-20-lines/
 */
(function () {
  // The test queue:
  var tests = [];

  // Function to add tests:
  this.test = function test (name, cb) {