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test_curtsies_painting.py
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781 lines (700 loc) · 28.1 KB
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# coding: utf8
from __future__ import unicode_literals
import itertools
import os
import pydoc
import string
import sys
from contextlib import contextmanager
from curtsies.formatstringarray import FormatStringTest, fsarray
from curtsies.fmtfuncs import cyan, bold, green, yellow, on_magenta, red
from bpython.curtsiesfrontend.events import RefreshRequestEvent
from bpython.test import mock
from bpython import config, inspection
from bpython.curtsiesfrontend.repl import BaseRepl
from bpython.curtsiesfrontend import replpainter
from bpython.curtsiesfrontend.repl import INCONSISTENT_HISTORY_MSG, \
CONTIGUITY_BROKEN_MSG
from bpython.test import FixLanguageTestCase as TestCase, TEST_CONFIG
def setup_config():
config_struct = config.Struct()
config.loadini(config_struct, TEST_CONFIG)
config_struct.cli_suggestion_width = 1
return config_struct
class ClearEnviron(TestCase):
@classmethod
def setUpClass(cls):
cls.mock_environ = mock.patch.dict('os.environ', {}, clear=True)
cls.mock_environ.start()
TestCase.setUpClass()
@classmethod
def tearDownClass(cls):
cls.mock_environ.stop()
TestCase.tearDownClass()
class CurtsiesPaintingTest(FormatStringTest, ClearEnviron):
def setUp(self):
class TestRepl(BaseRepl):
def _request_refresh(inner_self):
pass
self.repl = TestRepl(config=setup_config())
self.repl.height, self.repl.width = (5, 10)
@property
def locals(self):
return self.repl.coderunner.interp.locals
def assert_paint(self, screen, cursor_row_col):
array, cursor_pos = self.repl.paint()
self.assertFSArraysEqual(array, screen)
self.assertEqual(cursor_pos, cursor_row_col)
def assert_paint_ignoring_formatting(self, screen, cursor_row_col=None,
**paint_kwargs):
array, cursor_pos = self.repl.paint(**paint_kwargs)
self.assertFSArraysEqualIgnoringFormatting(array, screen)
if cursor_row_col is not None:
self.assertEqual(cursor_pos, cursor_row_col)
class TestCurtsiesPaintingTest(CurtsiesPaintingTest):
def test_history_is_cleared(self):
self.assertEqual(self.repl.rl_history.entries, [''])
class TestCurtsiesPaintingSimple(CurtsiesPaintingTest):
def test_startup(self):
screen = fsarray([cyan('>>> '), cyan('Welcome to')])
self.assert_paint(screen, (0, 4))
def test_enter_text(self):
[self.repl.add_normal_character(c) for c in '1 + 1']
screen = fsarray([cyan('>>> ') + bold(green('1') + cyan(' ') +
yellow('+') + cyan(' ') + green('1')),
cyan('Welcome to')])
self.assert_paint(screen, (0, 9))
def test_run_line(self):
try:
orig_stdout = sys.stdout
sys.stdout = self.repl.stdout
[self.repl.add_normal_character(c) for c in '1 + 1']
self.repl.on_enter(insert_into_history=False)
screen = fsarray(['>>> 1 + 1', '2', 'Welcome to'])
self.assert_paint_ignoring_formatting(screen, (1, 1))
finally:
sys.stdout = orig_stdout
def test_completion(self):
self.repl.height, self.repl.width = (5, 32)
self.repl.current_line = 'an'
self.cursor_offset = 2
if config.supports_box_chars():
screen = ['>>> an',
'┌──────────────────────────────┐',
'│ and any( │',
'└──────────────────────────────┘',
'Welcome to bpython! Press <F1> f']
else:
screen = ['>>> an',
'+------------------------------+',
'| and any( |',
'+------------------------------+',
'Welcome to bpython! Press <F1> f']
self.assert_paint_ignoring_formatting(screen, (0, 4))
def test_argspec(self):
def foo(x, y, z=10):
"docstring!"
pass
argspec = inspection.getfuncprops('foo', foo)
array = replpainter.formatted_argspec(argspec, 1, 30, setup_config())
screen = [bold(cyan('foo')) + cyan(':') + cyan(' ') + cyan('(') +
cyan('x') + yellow(',') + yellow(' ') + bold(cyan('y')) +
yellow(',') + yellow(' ') + cyan('z') + yellow('=') +
bold(cyan('10')) + yellow(')')]
self.assertFSArraysEqual(fsarray(array), fsarray(screen))
def test_formatted_docstring(self):
actual = replpainter.formatted_docstring(
'Returns the results\n\n' 'Also has side effects',
40, config=setup_config())
expected = fsarray(['Returns the results', '',
'Also has side effects'])
self.assertFSArraysEqualIgnoringFormatting(actual, expected)
def test_unicode_docstrings(self):
"A bit of a special case in Python 2"
# issue 653
def foo():
u"åß∂ƒ"
actual = replpainter.formatted_docstring(
foo.__doc__, 40, config=setup_config())
expected = fsarray([u'åß∂ƒ'])
self.assertFSArraysEqualIgnoringFormatting(actual, expected)
def test_nonsense_docstrings(self):
for docstring in [123, {}, [], ]:
try:
replpainter.formatted_docstring(
docstring, 40, config=setup_config())
except Exception:
self.fail('bad docstring caused crash: {!r}'.format(docstring))
def test_weird_boto_docstrings(self):
# Boto does something like this.
# botocore: botocore/docs/docstring.py
class WeirdDocstring(str):
# a mighty hack. See botocore/docs/docstring.py
def expandtabs(self, tabsize=8):
return u'asdfåß∂ƒ'.expandtabs(tabsize)
def foo():
pass
foo.__doc__ = WeirdDocstring()
wd = pydoc.getdoc(foo)
actual = replpainter.formatted_docstring(wd, 40, config=setup_config())
expected = fsarray([u'asdfåß∂ƒ'])
self.assertFSArraysEqualIgnoringFormatting(actual, expected)
def test_paint_lasts_events(self):
actual = replpainter.paint_last_events(4, 100, ['a', 'b', 'c'],
config=setup_config())
if config.supports_box_chars():
expected = fsarray(["┌─┐",
"│c│",
"│b│",
"└─┘"])
else:
expected = fsarray(["+-+",
"|c|",
"|b|",
"+-+"])
self.assertFSArraysEqualIgnoringFormatting(actual, expected)
@contextmanager
def output_to_repl(repl):
old_out, old_err = sys.stdout, sys.stderr
try:
sys.stdout, sys.stderr = repl.stdout, repl.stderr
yield
finally:
sys.stdout, sys.stderr = old_out, old_err
class HigherLevelCurtsiesPaintingTest(CurtsiesPaintingTest):
def refresh(self):
self.refresh_requests.append(RefreshRequestEvent())
def send_refreshes(self):
while self.refresh_requests:
self.repl.process_event(self.refresh_requests.pop())
_, _ = self.repl.paint()
def enter(self, line=None):
"""Enter a line of text, avoiding autocompletion windows
autocomplete could still happen if the entered line has
autocompletion that would happen then, but intermediate
stages won't happen"""
if line is not None:
self.repl._set_cursor_offset(len(line), update_completion=False)
self.repl.current_line = line
with output_to_repl(self.repl):
self.repl.on_enter(insert_into_history=False)
self.assertEqual(self.repl.rl_history.entries, [''])
self.send_refreshes()
def undo(self):
with output_to_repl(self.repl):
self.repl.undo()
self.send_refreshes()
def setUp(self):
self.refresh_requests = []
class TestRepl(BaseRepl):
def _request_refresh(inner_self):
self.refresh()
self.repl = TestRepl(banner='', config=setup_config())
self.repl.height, self.repl.width = (5, 32)
def send_key(self, key):
self.repl.process_event('<SPACE>' if key == ' ' else key)
self.repl.paint() # has some side effects we need to be wary of
class TestCurtsiesRewindRedraw(HigherLevelCurtsiesPaintingTest):
def test_rewind(self):
self.repl.current_line = '1 + 1'
self.enter()
screen = ['>>> 1 + 1',
'2',
'>>> ']
self.assert_paint_ignoring_formatting(screen, (2, 4))
self.repl.undo()
screen = ['>>> ']
self.assert_paint_ignoring_formatting(screen, (0, 4))
def test_rewind_contiguity_loss(self):
self.enter('1 + 1')
self.enter('2 + 2')
self.enter('def foo(x):')
self.repl.current_line = ' return x + 1'
screen = ['>>> 1 + 1',
'2',
'>>> 2 + 2',
'4',
'>>> def foo(x):',
'... return x + 1']
self.assert_paint_ignoring_formatting(screen, (5, 8))
self.repl.scroll_offset = 1
self.assert_paint_ignoring_formatting(screen[1:], (4, 8))
self.undo()
screen = ['2',
'>>> 2 + 2',
'4',
'>>> ']
self.assert_paint_ignoring_formatting(screen, (3, 4))
self.undo()
screen = ['2',
'>>> ']
self.assert_paint_ignoring_formatting(screen, (1, 4))
self.undo()
screen = [CONTIGUITY_BROKEN_MSG[:self.repl.width],
'>>> ',
'',
'',
'',
' '] # TODO why is that there? Necessary?
self.assert_paint_ignoring_formatting(screen, (1, 4))
screen = ['>>> ']
self.assert_paint_ignoring_formatting(screen, (0, 4))
def test_inconsistent_history_doesnt_happen_if_onscreen(self):
self.enter('1 + 1')
screen = ['>>> 1 + 1',
'2',
'>>> ']
self.assert_paint_ignoring_formatting(screen, (2, 4))
self.enter("2 + 2")
screen = ['>>> 1 + 1',
'2',
'>>> 2 + 2',
'4',
'>>> ']
self.assert_paint_ignoring_formatting(screen, (4, 4))
self.repl.display_lines[0] = self.repl.display_lines[0] * 2
self.undo()
screen = ['>>> 1 + 1',
'2',
'>>> ']
self.assert_paint_ignoring_formatting(screen, (2, 4))
def test_rewind_inconsistent_history(self):
self.enter('1 + 1')
self.enter('2 + 2')
self.enter('3 + 3')
screen = ['>>> 1 + 1',
'2',
'>>> 2 + 2',
'4',
'>>> 3 + 3',
'6',
'>>> ']
self.assert_paint_ignoring_formatting(screen, (6, 4))
self.repl.scroll_offset += len(screen) - self.repl.height
self.assert_paint_ignoring_formatting(screen[2:], (4, 4))
self.repl.display_lines[0] = self.repl.display_lines[0] * 2
self.undo()
screen = [INCONSISTENT_HISTORY_MSG[:self.repl.width],
'>>> 2 + 2',
'4',
'>>> ',
'',
' ']
self.assert_paint_ignoring_formatting(screen, (3, 4))
self.repl.scroll_offset += len(screen) - self.repl.height
self.assert_paint_ignoring_formatting(screen[1:-2], (2, 4))
self.assert_paint_ignoring_formatting(screen[1:-2], (2, 4))
def test_rewind_inconsistent_history_more_lines_same_screen(self):
self.repl.width = 60
sys.a = 5
self.enter('import sys')
self.enter('for i in range(sys.a):')
self.enter(' print(sys.a)')
self.enter('')
self.enter('1 + 1')
self.enter('2 + 2')
screen = ['>>> import sys',
'>>> for i in range(sys.a):',
'... print(sys.a)',
'... ',
'5',
'5',
'5',
'5',
'5',
'>>> 1 + 1',
'2',
'>>> 2 + 2',
'4',
'>>> ']
self.assert_paint_ignoring_formatting(screen, (13, 4))
self.repl.scroll_offset += len(screen) - self.repl.height
self.assert_paint_ignoring_formatting(screen[9:], (4, 4))
sys.a = 6
self.undo()
screen = [INCONSISTENT_HISTORY_MSG[:self.repl.width],
'6',
# everything will jump down a line - that's perfectly
# reasonable
'>>> 1 + 1',
'2',
'>>> ',
' ']
self.assert_paint_ignoring_formatting(screen, (4, 4))
self.repl.scroll_offset += len(screen) - self.repl.height
self.assert_paint_ignoring_formatting(screen[1:-1], (3, 4))
def test_rewind_inconsistent_history_more_lines_lower_screen(self):
self.repl.width = 60
sys.a = 5
self.enter("import sys")
self.enter("for i in range(sys.a):")
self.enter(" print(sys.a)")
self.enter("")
self.enter("1 + 1")
self.enter("2 + 2")
screen = [">>> import sys",
">>> for i in range(sys.a):",
"... print(sys.a)",
'... ',
'5',
'5',
'5',
'5',
'5',
'>>> 1 + 1',
'2',
'>>> 2 + 2',
'4',
'>>> ']
self.assert_paint_ignoring_formatting(screen, (13, 4))
self.repl.scroll_offset += len(screen) - self.repl.height
self.assert_paint_ignoring_formatting(screen[9:], (4, 4))
sys.a = 8
self.undo()
screen = [INCONSISTENT_HISTORY_MSG[:self.repl.width],
'8',
'8',
'8',
'>>> 1 + 1',
'2',
'>>> ']
self.assert_paint_ignoring_formatting(screen)
self.repl.scroll_offset += len(screen) - self.repl.height
self.assert_paint_ignoring_formatting(screen[-5:])
def test_rewind_inconsistent_history_more_lines_raise_screen(self):
self.repl.width = 60
sys.a = 5
self.enter("import sys")
self.enter("for i in range(sys.a):")
self.enter(" print(sys.a)")
self.enter("")
self.enter("1 + 1")
self.enter("2 + 2")
screen = [">>> import sys",
">>> for i in range(sys.a):",
"... print(sys.a)",
'... ',
'5',
'5',
'5',
'5',
'5',
'>>> 1 + 1',
'2',
'>>> 2 + 2',
'4',
'>>> ']
self.assert_paint_ignoring_formatting(screen, (13, 4))
self.repl.scroll_offset += len(screen) - self.repl.height
self.assert_paint_ignoring_formatting(screen[9:], (4, 4))
sys.a = 1
self.undo()
screen = [INCONSISTENT_HISTORY_MSG[:self.repl.width],
'1',
'>>> 1 + 1',
'2',
'>>> ',
' ']
self.assert_paint_ignoring_formatting(screen)
self.repl.scroll_offset += len(screen) - self.repl.height
self.assert_paint_ignoring_formatting(screen[1:-1])
def test_rewind_history_not_quite_inconsistent(self):
self.repl.width = 50
sys.a = 5
self.enter("for i in range(__import__('sys').a):")
self.enter(" print(i)")
self.enter("")
self.enter("1 + 1")
self.enter("2 + 2")
screen = [">>> for i in range(__import__('sys').a):",
"... print(i)",
"... ",
'0',
'1',
'2',
'3',
'4',
'>>> 1 + 1',
'2',
'>>> 2 + 2',
'4',
'>>> ']
self.assert_paint_ignoring_formatting(screen, (12, 4))
self.repl.scroll_offset += len(screen) - self.repl.height
self.assert_paint_ignoring_formatting(screen[8:], (4, 4))
sys.a = 6
self.undo()
screen = ['5',
# everything will jump down a line - that's perfectly
# reasonable
'>>> 1 + 1',
'2',
'>>> ']
self.assert_paint_ignoring_formatting(screen, (3, 4))
def test_rewind_barely_consistent(self):
self.enter("1 + 1")
self.enter("2 + 2")
self.enter("3 + 3")
screen = [">>> 1 + 1",
'2',
'>>> 2 + 2',
'4',
'>>> 3 + 3',
'6',
'>>> ']
self.assert_paint_ignoring_formatting(screen, (6, 4))
self.repl.scroll_offset += len(screen) - self.repl.height
self.assert_paint_ignoring_formatting(screen[2:], (4, 4))
self.repl.display_lines[2] = self.repl.display_lines[2] * 2
self.undo()
screen = ['>>> 2 + 2',
'4',
'>>> ']
self.assert_paint_ignoring_formatting(screen, (2, 4))
def test_clear_screen(self):
self.enter("1 + 1")
self.enter("2 + 2")
screen = [">>> 1 + 1",
'2',
'>>> 2 + 2',
'4',
'>>> ']
self.assert_paint_ignoring_formatting(screen, (4, 4))
self.repl.request_paint_to_clear_screen = True
screen = [">>> 1 + 1",
'2',
'>>> 2 + 2',
'4',
'>>> ', '', '', '', '']
self.assert_paint_ignoring_formatting(screen, (4, 4))
def test_scroll_down_while_banner_visible(self):
self.repl.status_bar.message('STATUS_BAR')
self.enter("1 + 1")
self.enter("2 + 2")
screen = [">>> 1 + 1",
'2',
'>>> 2 + 2',
'4',
'>>> ',
'STATUS_BAR ']
self.assert_paint_ignoring_formatting(screen, (4, 4))
self.repl.scroll_offset += len(screen) - self.repl.height
self.assert_paint_ignoring_formatting(screen[1:], (3, 4))
def test_clear_screen_while_banner_visible(self):
self.repl.status_bar.message('STATUS_BAR')
self.enter("1 + 1")
self.enter("2 + 2")
screen = [">>> 1 + 1",
'2',
'>>> 2 + 2',
'4',
'>>> ',
'STATUS_BAR ']
self.assert_paint_ignoring_formatting(screen, (4, 4))
self.repl.scroll_offset += len(screen) - self.repl.height
self.assert_paint_ignoring_formatting(screen[1:], (3, 4))
self.repl.request_paint_to_clear_screen = True
screen = ['2',
'>>> 2 + 2',
'4',
'>>> ',
'', '', '',
'STATUS_BAR ']
self.assert_paint_ignoring_formatting(screen, (3, 4))
def test_cursor_stays_at_bottom_of_screen(self):
"""infobox showing up during intermediate render was causing this to
fail, #371"""
self.repl.width = 50
self.repl.current_line = "__import__('random').__name__"
with output_to_repl(self.repl):
self.repl.on_enter(insert_into_history=False)
screen = [">>> __import__('random').__name__",
"'random'"]
self.assert_paint_ignoring_formatting(screen)
with output_to_repl(self.repl):
self.repl.process_event(self.refresh_requests.pop())
screen = [">>> __import__('random').__name__",
"'random'",
""]
self.assert_paint_ignoring_formatting(screen)
with output_to_repl(self.repl):
self.repl.process_event(self.refresh_requests.pop())
screen = [">>> __import__('random').__name__",
"'random'",
">>> "]
self.assert_paint_ignoring_formatting(screen, (2, 4))
def test_unhighlight_paren_bugs(self):
"""two previous bugs, parent didn't highlight until next render
and paren didn't unhighlight until enter"""
self.assertEqual(self.repl.rl_history.entries, [''])
self.enter('(')
self.assertEqual(self.repl.rl_history.entries, [''])
screen = [">>> (",
"... "]
self.assertEqual(self.repl.rl_history.entries, [''])
self.assert_paint_ignoring_formatting(screen)
self.assertEqual(self.repl.rl_history.entries, [''])
with output_to_repl(self.repl):
self.assertEqual(self.repl.rl_history.entries, [''])
self.repl.process_event(')')
self.assertEqual(self.repl.rl_history.entries, [''])
screen = fsarray([cyan(">>> ") + on_magenta(bold(red('('))),
green("... ") + on_magenta(bold(red(')')))])
self.assert_paint(screen, (1, 5))
with output_to_repl(self.repl):
self.repl.process_event(' ')
screen = fsarray([cyan(">>> ") + yellow('('),
green("... ") + yellow(')') + bold(cyan(" "))])
self.assert_paint(screen, (1, 6))
def test_472(self):
[self.send_key(c) for c in "(1, 2, 3)"]
with output_to_repl(self.repl):
self.send_key('\n')
self.send_refreshes()
self.send_key('<UP>')
self.repl.paint()
[self.send_key('<LEFT>') for _ in range(4)]
self.send_key('<BACKSPACE>')
self.send_key('4')
self.repl.on_enter()
self.send_refreshes()
screen = [">>> (1, 2, 3)",
'(1, 2, 3)',
'>>> (1, 4, 3)',
'(1, 4, 3)',
'>>> ']
self.assert_paint_ignoring_formatting(screen, (4, 4))
def completion_target(num_names, chars_in_first_name=1):
class Class(object):
pass
if chars_in_first_name < 1:
raise ValueError('need at least one char in each name')
elif chars_in_first_name == 1 and num_names > len(string.ascii_letters):
raise ValueError('need more chars to make so many names')
names = gen_names()
if num_names > 0:
setattr(Class, 'a' * chars_in_first_name, 1)
next(names) # use the above instead of first name
for _, name in zip(range(num_names - 1), names):
setattr(Class, name, 0)
return Class()
def gen_names():
for letters in itertools.chain(
itertools.combinations_with_replacement(string.ascii_letters, 1),
itertools.combinations_with_replacement(string.ascii_letters, 2)):
yield ''.join(letters)
class TestCompletionHelpers(TestCase):
def test_gen_names(self):
self.assertEqual(list(zip([1, 2, 3], gen_names())),
[(1, 'a'), (2, 'b'), (3, 'c')])
def test_completion_target(self):
target = completion_target(14)
self.assertEqual(len([x for x in dir(target)
if not x.startswith('_')]),
14)
class TestCurtsiesInfoboxPaint(HigherLevelCurtsiesPaintingTest):
def test_simple(self):
self.repl.width, self.repl.height = (20, 30)
self.locals['abc'] = completion_target(3, 50)
self.repl.current_line = 'abc'
self.repl.cursor_offset = 3
self.repl.process_event('.')
screen = ['>>> abc.',
'+------------------+',
'| aaaaaaaaaaaaaaaa |',
'| b |',
'| c |',
'+------------------+']
self.assert_paint_ignoring_formatting(screen, (0, 8))
def test_fill_screen(self):
self.repl.width, self.repl.height = (20, 15)
self.locals['abc'] = completion_target(20, 100)
self.repl.current_line = 'abc'
self.repl.cursor_offset = 3
self.repl.process_event('.')
screen = ['>>> abc.',
'+------------------+',
'| aaaaaaaaaaaaaaaa |',
'| b |',
'| c |',
'| d |',
'| e |',
'| f |',
'| g |',
'| h |',
'| i |',
'| j |',
'| k |',
'| l |',
'+------------------+']
self.assert_paint_ignoring_formatting(screen, (0, 8))
def test_lower_on_screen(self):
self.repl.get_top_usable_line = lambda: 10 # halfway down terminal
self.repl.width, self.repl.height = (20, 15)
self.locals['abc'] = completion_target(20, 100)
self.repl.current_line = 'abc'
self.repl.cursor_offset = 3
self.repl.process_event('.')
screen = ['>>> abc.',
'+------------------+',
'| aaaaaaaaaaaaaaaa |',
'| b |',
'| c |',
'| d |',
'| e |',
'| f |',
'| g |',
'| h |',
'| i |',
'| j |',
'| k |',
'| l |',
'+------------------+']
# behavior before issue #466
self.assert_paint_ignoring_formatting(
screen, try_preserve_history_height=0)
self.assert_paint_ignoring_formatting(
screen, min_infobox_height=100)
# behavior after issue #466
screen = ['>>> abc.',
'+------------------+',
'| aaaaaaaaaaaaaaaa |',
'| b |',
'| c |',
'+------------------+']
self.assert_paint_ignoring_formatting(screen)
def test_at_bottom_of_screen(self):
self.repl.get_top_usable_line = lambda: 17 # two lines from bottom
self.repl.width, self.repl.height = (20, 15)
self.locals['abc'] = completion_target(20, 100)
self.repl.current_line = 'abc'
self.repl.cursor_offset = 3
self.repl.process_event('.')
screen = ['>>> abc.',
'+------------------+',
'| aaaaaaaaaaaaaaaa |',
'| b |',
'| c |',
'| d |',
'| e |',
'| f |',
'| g |',
'| h |',
'| i |',
'| j |',
'| k |',
'| l |',
'+------------------+']
# behavior before issue #466
self.assert_paint_ignoring_formatting(
screen, try_preserve_history_height=0)
self.assert_paint_ignoring_formatting(
screen, min_infobox_height=100)
# behavior after issue #466
screen = ['>>> abc.',
'+------------------+',
'| aaaaaaaaaaaaaaaa |',
'| b |',
'| c |',
'+------------------+']
self.assert_paint_ignoring_formatting(screen)