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# Copyright 2000-2004 Michael Hudson-Doyle <micahel@gmail.com>
#
# All Rights Reserved
#
#
# Permission to use, copy, modify, and distribute this software and
# its documentation for any purpose is hereby granted without fee,
# provided that the above copyright notice appear in all copies and
# that both that copyright notice and this permission notice appear in
# supporting documentation.
#
# THE AUTHOR MICHAEL HUDSON DISCLAIMS ALL WARRANTIES WITH REGARD TO
# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
# AND FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL,
# INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
# CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
from __future__ import print_function
from contextlib import contextmanager
import os
from pyrepl.reader import Reader
from pyrepl.console import Console, Event
class EqualsAnything(object):
def __eq__(self, other):
return True
EA = EqualsAnything()
class TestConsole(Console):
height = 24
width = 80
encoding = 'utf-8'
def __init__(self, events, verbose=False):
self.events = events
self.next_screen = None
self.verbose = verbose
def refresh(self, screen, xy):
if self.next_screen is not None:
assert screen == self.next_screen, "[ %s != %s after %r ]" % (
screen, self.next_screen, self.last_event_name)
def get_event(self, block=1):
ev, sc = self.events.pop(0)
self.next_screen = sc
if not isinstance(ev, tuple):
ev = (ev, None)
self.last_event_name = ev[0]
if self.verbose:
print("event", ev)
return Event(*ev)
class BaseTestReader(Reader):
def get_prompt(self, lineno, cursor_on_line):
return ''
def refresh(self):
Reader.refresh(self)
self.dirty = True
def read_spec(test_spec, reader_class=BaseTestReader):
# remember to finish your test_spec with 'accept' or similar!
con = TestConsole(test_spec, verbose=True)
reader = reader_class(con)
reader.readline()
@contextmanager
def sane_term():
"""Ensure a TERM that supports clear"""
old_term, os.environ['TERM'] = os.environ.get('TERM'), 'xterm'
yield
if old_term is not None:
os.environ['TERM'] = old_term
else:
del os.environ['TERM']
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