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| 'use strict';
|
| var hasSymbols = require('has-symbols')();
|
| module.exports = function runTests(promisify, t) {
| t.equal(typeof promisify, 'function', 'promisify is a function');
|
| t['throws'](
| function () { promisify(null); },
| TypeError,
| 'throws on non-functions'
| );
|
| var yes = function () {
| var cb = arguments[arguments.length - 1];
| cb(null, Array.prototype.slice.call(arguments, 0, -1));
| };
| var no = function () {
| var cb = arguments[arguments.length - 1];
| cb(Array.prototype.slice.call(arguments, 0, -1));
| };
|
| var pYes = promisify(yes);
| var pNo = promisify(no);
|
| t.equal(typeof pYes, 'function', 'pYes is a function');
| t.equal(typeof pNo, 'function', 'pNo is a function');
|
| t.test('pYes is properly promisified', { skip: typeof Promise !== 'function' }, function (st) {
| st.plan(1);
|
| var p = pYes(1, 2, 3);
| return p.then(function (result) {
| st.deepEqual(result, [1, 2, 3], 'fulfillment: arguments are preserved');
| });
| });
|
| t.test('pNo is properly promisified', { skip: typeof Promise !== 'function' }, function (st) {
| st.plan(1);
|
| var p = pNo(1, 2, 3);
| return p.then(null, function (args) {
| st.deepEqual(args, [1, 2, 3], 'rejection: arguments are preserved');
| });
| });
|
| t.test('custom symbol', { skip: !hasSymbols }, function (st) {
| st.equal(Symbol.keyFor(promisify.custom), 'nodejs.util.promisify.custom', 'is a global symbol with the right key');
| // eslint-disable-next-line no-restricted-properties
| st.equal(Symbol['for']('nodejs.util.promisify.custom'), promisify.custom, 'is the global symbol');
|
| st.end();
| });
| };
|
|