def METHOD_NAME(self):
    """Testing output with flag f"""
    string = """5|706338.2501495|54889.417883875||*
    6|758009.7501495|112019.898883875||*
    7|754002.7501495|200902.234883875||*
    8|704771.7501495|183364.484883875||*"""
    r_what = SimpleModule(
        "r.what", map=self.input, coordinates=self.coordinates, flags="f"
    )
    r_what.outputs.stdout = string
    self.assertLooksLike(reference=string, actual=r_what.outputs.stdout)