35 lines
1.2 KiB
JavaScript
35 lines
1.2 KiB
JavaScript
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var failIfThrows = function (done) {
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'use strict';
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return function (e) {
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done(e || new Error());
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};
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};
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describe('Promise.reject', function () {
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'use strict';
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it('should not be enumerable', function () {
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expect(Promise).ownPropertyDescriptor('reject').to.have.property('enumerable', false);
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});
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it('should return a rejected promise', function (done) {
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var value = {};
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Promise.reject(value).then(failIfThrows(done), function (result) {
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expect(result).to.equal(value);
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done();
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});
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});
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it('throws when receiver is a primitive', function () {
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var promise = Promise.reject();
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expect(function () { Promise.reject.call(undefined, promise); }).to['throw']();
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expect(function () { Promise.reject.call(null, promise); }).to['throw']();
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expect(function () { Promise.reject.call('', promise); }).to['throw']();
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expect(function () { Promise.reject.call(42, promise); }).to['throw']();
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expect(function () { Promise.reject.call(false, promise); }).to['throw']();
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expect(function () { Promise.reject.call(true, promise); }).to['throw']();
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promise.then(null, function () {}); // silence unhandled rejection errors in Chrome
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});
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});
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