ember-introjs/.node_modules.ember-try/ember-cli-chai/addon/qunit.js

An Ember Component for intro.js

import { expect, util } from 'chai';

/**
 * Returns a function that calls the passed in function with a wrapped
 * expect() and the original `assert` as parameters.
 */
export function withChai(fn) {
  return function(assert) {

    function _expect(...args) {
      let assertion = expect(...args);
      let originalAssert = assertion.assert;
      assertion.assert = function(...args) {
        let message = util.flag(assertion, 'message');

        try {
          originalAssert.apply(this, args);
          assert.pushResult({ result: true, message });

        } catch (error) {
          assert.pushResult({
            result: false,
            actual: error.showDiff ? error.actual : undefined,
            expected: error.showDiff ? error.expected : undefined,
            message: error.message,
          });
        }
      };
      return assertion;
    }

    return fn.call(this, _expect, assert);
  };
}