How to use the pify.mockReturnValue function in pify
To help you get started, we’ve selected a few pify examples, based on popular ways it is used in public projects.
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algolia / talksearch-scraper / src / __tests__ / fileutils.js View on Github 
it('is a promise wrapper around glob', async () => {
module._glob = null;
const mockGlob = jest.fn().mockReturnValue('foo');
pify.mockReturnValue(mockGlob);
const actual = await module.glob('pattern');
expect(actual).toEqual('foo');
expect(pify).toHaveBeenCalledWith(glob);
expect(mockGlob).toHaveBeenCalledWith('pattern');
});
});it('is a promise wrapper around fs.readFile', async () => {
module._readFile = null;
const mockReadFile = jest.fn().mockReturnValue('foo');
pify.mockReturnValue(mockReadFile);
const actual = await module.read('filepath');
expect(actual).toEqual('foo');
expect(pify).toHaveBeenCalledWith(fs.readFile);
expect(mockReadFile).toHaveBeenCalledWith('filepath');
});
});
