44 lines
1.2 KiB
JavaScript
44 lines
1.2 KiB
JavaScript
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/* This file is for testing implementation regressions of Promises. */
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describe('Promise', function () {
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if (typeof Promise === 'undefined') {
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return it('exists', function () {
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expect(typeof Promise).to.be('function');
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});
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}
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var ifShimIt = (typeof process !== 'undefined' && process.env.NO_ES6_SHIM) ? it.skip : it;
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ifShimIt('is on the exported object', function () {
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var exported = require('../');
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expect(exported.Promise).to.equal(Promise);
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});
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it('ignores non-function .then arguments', function () {
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expect(function () {
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Promise.reject(42).then(null, 5).then(null, function () {});
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}).not.to['throw']();
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});
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describe('extra methods (bad Chrome!)', function () {
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it('does not have accept', function () {
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expect(Promise).not.to.have.property('accept');
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});
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it('does not have defer', function () {
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expect(Promise).not.to.have.property('defer');
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});
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it('does not have chain', function () {
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expect(Promise.prototype).not.to.have.property('chain');
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});
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});
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it('requires an object context', function () {
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// this fails in Safari 7.1 - 9
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expect(function promiseDotCallThree() {
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Promise.call(3, function () {});
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}).to['throw']();
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});
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});
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