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"Test autocomplete, coverage 93%."
import unittest
from unittest.mock import Mock, patch
from test.support import requires
from tkinter import Tk, Text
import os
import __main__
import idlelib.autocomplete as ac
import idlelib.autocomplete_w as acw
from idlelib.idle_test.mock_idle import Func
from idlelib.idle_test.mock_tk import Event
class DummyEditwin:
def __init__(self, root, text):
self.root = root
self.text = text
self.indentwidth = 8
self.tabwidth = 8
self.prompt_last_line = '>>>' # Currently not used by autocomplete.
class AutoCompleteTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
requires('gui')
cls.root = Tk()
cls.root.withdraw()
cls.text = Text(cls.root)
cls.editor = DummyEditwin(cls.root, cls.text)
@classmethod
def tearDownClass(cls):
del cls.editor, cls.text
cls.root.update_idletasks()
cls.root.destroy()
del cls.root
def setUp(self):
self.text.delete('1.0', 'end')
self.autocomplete = ac.AutoComplete(self.editor)
def test_init(self):
self.assertEqual(self.autocomplete.editwin, self.editor)
self.assertEqual(self.autocomplete.text, self.text)
def test_make_autocomplete_window(self):
testwin = self.autocomplete._make_autocomplete_window()
self.assertIsInstance(testwin, acw.AutoCompleteWindow)
def test_remove_autocomplete_window(self):
acp = self.autocomplete
acp.autocompletewindow = m = Mock()
acp._remove_autocomplete_window()
m.hide_window.assert_called_once()
self.assertIsNone(acp.autocompletewindow)
def test_force_open_completions_event(self):
# Call _open_completions and break.
acp = self.autocomplete
open_c = Func()
acp.open_completions = open_c
self.assertEqual(acp.force_open_completions_event('event'), 'break')
self.assertEqual(open_c.args[0], ac.FORCE)
def test_autocomplete_event(self):
Equal = self.assertEqual
acp = self.autocomplete
# Result of autocomplete event: If modified tab, None.
ev = Event(mc_state=True)
self.assertIsNone(acp.autocomplete_event(ev))
del ev.mc_state
# If tab after whitespace, None.
self.text.insert('1.0', ' """Docstring.\n ')
self.assertIsNone(acp.autocomplete_event(ev))
self.text.delete('1.0', 'end')
# If active autocomplete window, complete() and 'break'.
self.text.insert('1.0', 're.')
acp.autocompletewindow = mock = Mock()
mock.is_active = Mock(return_value=True)
Equal(acp.autocomplete_event(ev), 'break')
mock.complete.assert_called_once()
acp.autocompletewindow = None
# If no active autocomplete window, open_completions(), None/break.
open_c = Func(result=False)
acp.open_completions = open_c
Equal(acp.autocomplete_event(ev), None)
Equal(open_c.args[0], ac.TAB)
open_c.result = True
Equal(acp.autocomplete_event(ev), 'break')
Equal(open_c.args[0], ac.TAB)
def test_try_open_completions_event(self):
Equal = self.assertEqual
text = self.text
acp = self.autocomplete
trycompletions = acp.try_open_completions_event
after = Func(result='after1')
acp.text.after = after
# If no text or trigger, after not called.
trycompletions()
Equal(after.called, 0)
text.insert('1.0', 're')
trycompletions()
Equal(after.called, 0)
# Attribute needed, no existing callback.
text.insert('insert', ' re.')
acp._delayed_completion_id = None
trycompletions()
Equal(acp._delayed_completion_index, text.index('insert'))
Equal(after.args,
(acp.popupwait, acp._delayed_open_completions, ac.TRY_A))
cb1 = acp._delayed_completion_id
Equal(cb1, 'after1')
# File needed, existing callback cancelled.
text.insert('insert', ' "./Lib/')
after.result = 'after2'
cancel = Func()
acp.text.after_cancel = cancel
trycompletions()
Equal(acp._delayed_completion_index, text.index('insert'))
Equal(cancel.args, (cb1,))
Equal(after.args,
(acp.popupwait, acp._delayed_open_completions, ac.TRY_F))
Equal(acp._delayed_completion_id, 'after2')
def test_delayed_open_completions(self):
Equal = self.assertEqual
acp = self.autocomplete
open_c = Func()
acp.open_completions = open_c
self.text.insert('1.0', '"dict.')
# Set autocomplete._delayed_completion_id to None.
# Text index changed, don't call open_completions.
acp._delayed_completion_id = 'after'
acp._delayed_completion_index = self.text.index('insert+1c')
acp._delayed_open_completions('dummy')
self.assertIsNone(acp._delayed_completion_id)
Equal(open_c.called, 0)
# Text index unchanged, call open_completions.
acp._delayed_completion_index = self.text.index('insert')
acp._delayed_open_completions((1, 2, 3, ac.FILES))
self.assertEqual(open_c.args[0], (1, 2, 3, ac.FILES))
def test_oc_cancel_comment(self):
none = self.assertIsNone
acp = self.autocomplete
# Comment is in neither code or string.
acp._delayed_completion_id = 'after'
after = Func(result='after')
acp.text.after_cancel = after
self.text.insert(1.0, '# comment')
none(acp.open_completions(ac.TAB)) # From 'else' after 'elif'.
none(acp._delayed_completion_id)
def test_oc_no_list(self):
acp = self.autocomplete
fetch = Func(result=([],[]))
acp.fetch_completions = fetch
self.text.insert('1.0', 'object')
self.assertIsNone(acp.open_completions(ac.TAB))
self.text.insert('insert', '.')
self.assertIsNone(acp.open_completions(ac.TAB))
self.assertEqual(fetch.called, 2)
def test_open_completions_none(self):
# Test other two None returns.
none = self.assertIsNone
acp = self.autocomplete
# No object for attributes or need call not allowed.
self.text.insert(1.0, '.')
none(acp.open_completions(ac.TAB))
self.text.insert('insert', ' int().')
none(acp.open_completions(ac.TAB))
# Blank or quote trigger 'if complete ...'.
self.text.delete(1.0, 'end')
self.assertFalse(acp.open_completions(ac.TAB))
self.text.insert('1.0', '"')
self.assertFalse(acp.open_completions(ac.TAB))
self.text.delete('1.0', 'end')
class dummy_acw():
__init__ = Func()
show_window = Func(result=False)
hide_window = Func()
def test_open_completions(self):
# Test completions of files and attributes.
acp = self.autocomplete
fetch = Func(result=(['tem'],['tem', '_tem']))
acp.fetch_completions = fetch
def make_acw(): return self.dummy_acw()
acp._make_autocomplete_window = make_acw
self.text.insert('1.0', 'int.')
acp.open_completions(ac.TAB)
self.assertIsInstance(acp.autocompletewindow, self.dummy_acw)
self.text.delete('1.0', 'end')
# Test files.
self.text.insert('1.0', '"t')
self.assertTrue(acp.open_completions(ac.TAB))
self.text.delete('1.0', 'end')
def test_fetch_completions(self):
# Test that fetch_completions returns 2 lists:
# For attribute completion, a large list containing all variables, and
# a small list containing non-private variables.
# For file completion, a large list containing all files in the path,
# and a small list containing files that do not start with '.'.
acp = self.autocomplete
small, large = acp.fetch_completions(
'', ac.ATTRS)
if hasattr(__main__, '__file__') and __main__.__file__ != ac.__file__:
self.assertNotIn('AutoComplete', small) # See issue 36405.
# Test attributes
s, b = acp.fetch_completions('', ac.ATTRS)
self.assertLess(len(small), len(large))
self.assertTrue(all(filter(lambda x: x.startswith('_'), s)))
self.assertTrue(any(filter(lambda x: x.startswith('_'), b)))
# Test smalll should respect to __all__.
with patch.dict('__main__.__dict__', {'__all__': ['a', 'b']}):
s, b = acp.fetch_completions('', ac.ATTRS)
self.assertEqual(s, ['a', 'b'])
self.assertIn('__name__', b) # From __main__.__dict__
self.assertIn('sum', b) # From __main__.__builtins__.__dict__
# Test attributes with name entity.
mock = Mock()
mock._private = Mock()
with patch.dict('__main__.__dict__', {'foo': mock}):
s, b = acp.fetch_completions('foo', ac.ATTRS)
self.assertNotIn('_private', s)
self.assertIn('_private', b)
self.assertEqual(s, [i for i in sorted(dir(mock)) if i[:1] != '_'])
self.assertEqual(b, sorted(dir(mock)))
# Test files
def _listdir(path):
# This will be patch and used in fetch_completions.
if path == '.':
return ['foo', 'bar', '.hidden']
return ['monty', 'python', '.hidden']
with patch.object(os, 'listdir', _listdir):
s, b = acp.fetch_completions('', ac.FILES)
self.assertEqual(s, ['bar', 'foo'])
self.assertEqual(b, ['.hidden', 'bar', 'foo'])
s, b = acp.fetch_completions('~', ac.FILES)
self.assertEqual(s, ['monty', 'python'])
self.assertEqual(b, ['.hidden', 'monty', 'python'])
def test_get_entity(self):
# Test that a name is in the namespace of sys.modules and
# __main__.__dict__.
acp = self.autocomplete
Equal = self.assertEqual
Equal(acp.get_entity('int'), int)
# Test name from sys.modules.
mock = Mock()
with patch.dict('sys.modules', {'tempfile': mock}):
Equal(acp.get_entity('tempfile'), mock)
# Test name from __main__.__dict__.
di = {'foo': 10, 'bar': 20}
with patch.dict('__main__.__dict__', {'d': di}):
Equal(acp.get_entity('d'), di)
# Test name not in namespace.
with patch.dict('__main__.__dict__', {}):
with self.assertRaises(NameError):
acp.get_entity('not_exist')
if __name__ == '__main__':
unittest.main(verbosity=2)
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