message: Fix MonthPicker tests
diff: @@ -9,10 +9,11 @@ const now = new Date()
  describe('MonthPicker', () => {
  it('should render correctly with month and year', () => {
  + const visibleDate = new Date('2019-01-31')
  const { container } = render(withTheme(
  <MonthPicker
  - month={new Date().getMonth()}
  - year={new Date().getFullYear()}
  + month={visibleDate.getMonth()}
  + year={visibleDate.getFullYear()}
  />))
  expect(container).toMatchSnapshot()
  })
  @@ -48,7 +49,7 @@ describe('MonthPicker', () => {
  onChange={onChange}
  />))
  fireEvent.click(getByText('Jan'))
  - expect(onChange).toHaveBeenCalledWith({ month: now.getMonth(), year: now.getFullYear() })
  + expect(onChange).toHaveBeenCalledWith({ month: 0, year: now.getFullYear() })
  })
  it('should call "onChange" when a month is selected, with the given year', () => {
  @@ -62,7 +63,7 @@ describe('MonthPicker', () => {
  fireEvent.click(getByTitle('Ano anterior'))
  fireEvent.click(getByText('Jan'))
  const expectedYear = now.getFullYear() - 1
  - expect(onChange).toHaveBeenCalledWith({ month: now.getMonth(), year: expectedYear })
  + expect(onChange).toHaveBeenCalledWith({ month: 0, year: expectedYear })
  })
  it('should fill the prop year if non is given', () => {
  