34 lines
1.1 KiB
JavaScript
34 lines
1.1 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.resolve', function () {
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'use strict';
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it('should not be enumerable', function () {
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expect(Promise).ownPropertyDescriptor('resolve').to.have.property('enumerable', false);
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});
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it('should return a resolved promise', function (done) {
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var value = {};
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Promise.resolve(value).then(function (result) {
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expect(result).to.equal(value);
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done();
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}, failIfThrows(done));
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});
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it('throws when receiver is a primitive', function () {
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var promise = Promise.resolve();
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expect(function () { Promise.resolve.call(undefined, promise); }).to['throw']();
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expect(function () { Promise.resolve.call(null, promise); }).to['throw']();
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expect(function () { Promise.resolve.call('', promise); }).to['throw']();
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expect(function () { Promise.resolve.call(42, promise); }).to['throw']();
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expect(function () { Promise.resolve.call(false, promise); }).to['throw']();
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expect(function () { Promise.resolve.call(true, promise); }).to['throw']();
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});
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});
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