class AssertPrints(object):
"""Context manager for testing that code prints certain text.
Examples
--------
>>> with AssertPrints("abc", suppress=False):
... print "abcd"
... print "def"
...
abcd
def
"""
def __init__(self, s, channel='stdout', suppress=True):
self.s = s
self.channel = channel
self.suppress = suppress
def __enter__(self):
self.orig_stream = getattr(sys, self.channel)
self.buffer = MyStringIO()
self.tee = Tee(self.buffer, channel=self.channel)
setattr(sys, self.channel, self.buffer if self.suppress else self.tee)
def __exit__(self, etype, value, traceback):
self.tee.flush()
setattr(sys, self.channel, self.orig_stream)
printed = self.buffer.getvalue()
assert self.s in printed, notprinted_msg.format(
self.s, self.channel, printed)
return False
class AssertPrints(object):
"""Context manager for testing that code prints certain text.
Examples
--------
>>> with AssertPrints("abc", suppress=False):
... print("abcd")
... print("def")
...
abcd
def
"""
def __init__(self, s, channel='stdout', suppress=True):
self.s = s
self.channel = channel
self.suppress = suppress
def __enter__(self):
self.orig_stream = getattr(sys, self.channel)
self.buffer = MyStringIO()
self.tee = Tee(self.buffer, channel=self.channel)
setattr(sys, self.channel, self.buffer if self.suppress else self.tee)
def __exit__(self, etype, value, traceback):
self.tee.flush()
setattr(sys, self.channel, self.orig_stream)
printed = self.buffer.getvalue()
assert self.s in printed, notprinted_msg.format(self.s, self.channel, printed)
return False
class AssertPrints(object):
"""Context manager for testing that code prints certain text.
Examples
--------
>>> with AssertPrints("abc", suppress=False):
... print "abcd"
... print "def"
...
abcd
def
"""
def __init__(self, s, channel='stdout', suppress=True):
self.s = s
if isinstance(self.s, py3compat.string_types):
self.s = [self.s]
self.channel = channel
self.suppress = suppress
def __enter__(self):
self.orig_stream = getattr(sys, self.channel)
self.buffer = MyStringIO()
self.tee = Tee(self.buffer, channel=self.channel)
setattr(sys, self.channel, self.buffer if self.suppress else self.tee)
def __exit__(self, etype, value, traceback):
if value is not None:
# If an error was raised, don't check anything else
return False
self.tee.flush()
setattr(sys, self.channel, self.orig_stream)
printed = self.buffer.getvalue()
for s in self.s:
assert s in printed, notprinted_msg.format(s, self.channel, printed)
return False
class AssertPrints(object):
"""Context manager for testing that code prints certain text.
Examples
--------
>>> with AssertPrints("abc", suppress=False):
... print "abcd"
... print "def"
...
abcd
def
"""
def __init__(self, s, channel='stdout', suppress=True):
self.s = s
if isinstance(self.s, py3compat.string_types):
self.s = [self.s]
self.channel = channel
self.suppress = suppress
def __enter__(self):
self.orig_stream = getattr(sys, self.channel)
self.buffer = MyStringIO()
self.tee = Tee(self.buffer, channel=self.channel)
setattr(sys, self.channel, self.buffer if self.suppress else self.tee)
def __exit__(self, etype, value, traceback):
if value is not None:
# If an error was raised, don't check anything else
return False
self.tee.flush()
setattr(sys, self.channel, self.orig_stream)
printed = self.buffer.getvalue()
for s in self.s:
assert s in printed, notprinted_msg.format(s, self.channel, printed)
return False
class SlackCaster:
token = attr.ib(repr=False)
as_user = attr.ib(default=True)
def __attrs_post_init__(self):
self.orig_stdout = None
self.sc = SlackClient(self.token)
self.channel = None
self.cell_input = None
self.tp = ThreadPoolExecutor(1)
self.history = {}
def _capture_on(self):
self.orig_stdout = sys.stdout
self.buffer = StringIO()
self.tee = Tee(self.buffer, 'stdout')
sys.stdout = self.buffer
def _capture_off(self):
res = None
if self.orig_stdout is not None:
try:
self.tee.flush()
sys.stdout = self.orig_stdout
self.orig_stdout = None
res = self.buffer.getvalue()
finally:
self.tee.close()
self.tee = None
return res
def _call_and_get(self, cmd, seqname, filter_key, result_key, kwargs,
value):
results = self.sc.api_call(cmd, **kwargs)
if results['ok']:
for item in results[seqname]:
if item[filter_key] == value:
return item[result_key]
_get_channel_id = partialmethod(
_call_and_get,
cmd='channels.list',
seqname='channels',
filter_key='name',
result_key='id',
kwargs={'exclude_archived': 1},
)
_get_im_id = partialmethod(
_call_and_get,
cmd='im.list',
seqname='ims',
filter_key='name',
result_key='id',
kwargs={},
)
_get_user_id = partialmethod(
_call_and_get,
cmd='users.list',
seqname='members',
filter_key='name',
result_key='id',
kwargs={},
)
def _format_cell(self, cell):
cell = ansi_escape.sub('', cell)
return html.escape(f"```{cell}```", quote=False)
def _send(self, channel, contents):
res = self.sc.api_call(
'chat.postMessage',
channel=channel,
text=self._format_cell(contents),
as_user=self.as_user,
)
if not res['ok']:
raise SlackAPIException(res['error'])
def _send_cell(self, cell_input=None, cell_output=None):
if self.channel is None:
return
if cell_input is not None:
self.tp.submit(self._send, self.channel, cell_input)
if cell_output is not None:
if len(cell_output) > 0:
self.tp.submit(self._send, self.channel, cell_output)
def pre_run_cell(self, info):
if not info.raw_cell.startswith('%slackcast'):
self.cell_input = info.raw_cell
self._capture_on()
else:
self.cell_input = None
def _store_history(self, number, cell_input=None, cell_output=None):
self.history[number] = (cell_input, cell_output)
def post_run_cell(self, result):
cell_output = self._capture_off()
# Print output to console
if type(cell_output) == str:
sys.stdout.write(cell_output)
# Send input and output cells to slack
self._store_history(result.execution_count, self.cell_input,
cell_output)
self._send_cell(self.cell_input, cell_output)
def replay(self, channel, items):
orig_channel = self.channel
self.set_channel(channel)
for idx in items:
cell_input, cell_output = self.history[idx]
self._send_cell(cell_input, cell_output)
self.channel = orig_channel
def set_channel(self, channel=None):
# Go silent
if channel is None:
self.channel = None
return
chan_type = channel[0]
name = channel[1:]
channel_id = None
if chan_type == '#':
channel_id = self._get_channel_id(value=name)
if chan_type == '@':
channel_id = self._get_user_id(value=name)
if channel_id is None:
raise SlackcastException('Could not set channel to {channel}.')
else:
self.channel = channel_id
def say(self, line):
self._send_cell(line)
