def text(self, value):
"""
Updates the display with the given value.
:param value: The value to render onto the device. Any characters which
cannot be rendered will be converted into the ``undefined``
character supplied in the constructor. Newline characters '\n' work
as expected but no other control characters (e.g. \r) are honored.
:type value: str
"""
self._text_buffer = observable(mutable_string(value),
observer=self._flush)
def text(self, value):
"""
Updates the seven-segment display with the given value. If there is not
enough space to show the full text, an ``OverflowException`` is raised.
:param value: The value to render onto the device. Any characters which
cannot be rendered will be converted into the ``undefined``
character supplied in the constructor.
:type value: str
"""
self._text_buffer = observable(mutable_string(value),
observer=self._flush)
def color(self, value):
if not isinstance(value, list):
value = [value] * self.device.width
assert (len(value) == self.device.width)
self._colors = observable(value, observer=self._color_chg)
def test_repr():
bell = test_bell()
buf = observable(bytearray("hello", "utf-8"), bell.ding)
assert repr(buf) == "bytearray(b'hello')"
assert bell.called == 1
def test_delitem():
bell = test_bell()
buf = observable(mutable_string("hello"), bell.ding)
del buf[4]
assert str(buf) == "hell"
assert bell.called == 2
def test_getslice():
bell = test_bell()
buf = observable(mutable_string("hello"), bell.ding)
assert buf[2:4] == "ll"
assert bell.called == 1
def test_setslice():
bell = test_bell()
buf = observable(mutable_string("hello"), bell.ding)
buf[1:4] = "ipp"
assert str(buf) == "hippo"
assert bell.called == 2
def test_setitem():
bell = test_bell()
buf = observable(mutable_string("hello"), bell.ding)
buf[0] = "y"
assert str(buf) == "yello"
assert bell.called == 2
def test_getattribute():
bell = test_bell()
buf = observable(bytearray("hello", "utf-8"), bell.ding)
assert list(iter(buf.decode("utf-8"))) == list("hello")
assert bell.called == 1
def test_iteration():
bell = test_bell()
buf = observable(bytearray("hello", "utf-8"), bell.ding)
assert list(iter(buf)) == [ord(ch) for ch in "hello"]
assert bell.called == 1
def test_length():
bell = test_bell()
buf = observable(bytearray("hello", "utf-8"), bell.ding)
assert len(buf) == 5
assert bell.called == 1
