Esempio n. 1
0
def test_none_r(bs):
    stream = bio(bs)
    assert rw.none().read(stream) is None
    stream.read() == 'a b c'

    assert rw.none().width() == 0
Esempio n. 2
0
def test_none_w():
    stream = BytesIO()
    assert rw.none().write(42, stream) == stream
    assert stream.getvalue() == ''
Esempio n. 3
0
def test_none_r(bs):
    stream = bio(bs)
    assert rw.none().read(stream) is None
    stream.read() == 'a b c'

    assert rw.none().width() == 0


def test_none_w():
    stream = BytesIO()
    assert rw.none().write(42, stream) == stream
    assert stream.getvalue() == ''


@pytest.mark.parametrize('other, bs', [
    (rw.none(), []),
    (rw.number(1), [1]),
    (rw.number(4), [1, 2, 3, 4]),
])
def test_constant_r(other, bs):
    stream = bio(bs)
    assert rw.constant(other, 42).read(stream) == 42
    assert stream.read() == ''

    assert rw.constant(other, 42).width() == other.width()


@pytest.mark.parametrize('other, v1, v2', [
    (rw.none(), None, None),
    (rw.number(1), 10, 12),
    (rw.number(2), 500, 1),