How to use the boxen.mockReturnValue function in boxen
To help you get started, we’ve selected a few boxen examples, based on popular ways it is used in public projects.
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kefranabg / readme-md-generator / src / utils.spec.js View on Github 
describe('showEndMessage', () => {
boxen.mockReturnValue(END_MSG)
it('should call boxen with correct parameters', () => {
showEndMessage()
expect(boxen).toHaveBeenCalledTimes(1)
expect(boxen).toHaveBeenCalledWith(END_MSG, BOXEN_CONFIG)
})
it('should call process.stdout.write with correct parameters', () => {
process.stdout.write = jest.fn()
showEndMessage()
expect(process.stdout.write).toHaveBeenCalledTimes(1)
expect(process.stdout.write).toHaveBeenCalledWith(END_MSG)
})
