Method _check_from

numpy/core/tests/test_multiarray.py:5520–5530

(self, s, value, filename, **kw)

            os.dup = old_dup

    def _check_from(self, s, value, filename, **kw):
        if 'sep' not in kw:
            y = np.frombuffer(s, **kw)
        else:
            y = np.fromstring(s, **kw)
        assert_array_equal(y, value)

        with open(filename, 'wb') as f:
            f.write(s)
        y = np.fromfile(filename, **kw)
        assert_array_equal(y, value)

    @pytest.fixture(params=["period", "comma"])
    def decimal_sep_localization(self, request):