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41 lines
1011 B
41 lines
1011 B
import nodeify from './nodeify';
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describe('nodeify', () => {
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const obj = {
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foo: 'bar',
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promiseFunc(a) {
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const solution = this.foo + a;
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return Promise.resolve(solution);
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},
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};
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it('should retain original context', () => {
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const nodified = nodeify(obj.promiseFunc, obj);
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nodified('baz', (_, res) => {
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expect(res).toStrictEqual('barbaz');
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});
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});
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it('no callback - should allow the last argument to not be a function', async () => {
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const nodified = nodeify(obj.promiseFunc, obj);
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await expect(() => {
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nodified('baz');
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}).not.toThrow();
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});
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it('sync functions - returns value', async () => {
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const nodified = nodeify(() => 42);
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nodified((_, result) => {
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expect(42).toStrictEqual(result);
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});
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});
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it('sync functions - handles errors', () => {
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const nodified = nodeify(() => {
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throw new Error('boom!');
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});
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nodified((err, _) => {
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expect(err.message).toStrictEqual('boom!');
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});
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});
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});
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