Viewing file:  test_pyshell.py (4.85 KB) -rw-r--r--
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"Test pyshell, coverage 12%."
# Plus coverage of test_warning. Was 20% with test_openshell.
from idlelib import pyshell
import unittest
from test.support import requires
from tkinter import Tk
class FunctionTest(unittest.TestCase):
# Test stand-alone module level non-gui functions.
def test_restart_line_wide(self):
eq = self.assertEqual
for file, mul, extra in (('', 22, ''), ('finame', 21, '=')):
width = 60
bar = mul * '='
with self.subTest(file=file, bar=bar):
file = file or 'Shell'
line = pyshell.restart_line(width, file)
eq(len(line), width)
eq(line, f"{bar+extra} RESTART: {file} {bar}")
def test_restart_line_narrow(self):
expect, taglen = "= RESTART: Shell", 16
for width in (taglen-1, taglen, taglen+1):
with self.subTest(width=width):
self.assertEqual(pyshell.restart_line(width, ''), expect)
self.assertEqual(pyshell.restart_line(taglen+2, ''), expect+' =')
class PyShellFileListTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
requires('gui')
cls.root = Tk()
cls.root.withdraw()
@classmethod
def tearDownClass(cls):
#cls.root.update_idletasks()
## for id in cls.root.tk.call('after', 'info'):
## cls.root.after_cancel(id) # Need for EditorWindow.
cls.root.destroy()
del cls.root
def test_init(self):
psfl = pyshell.PyShellFileList(self.root)
self.assertEqual(psfl.EditorWindow, pyshell.PyShellEditorWindow)
self.assertIsNone(psfl.pyshell)
# The following sometimes causes 'invalid command name "109734456recolorize"'.
# Uncommenting after_cancel above prevents this, but results in
# TclError: bad window path name ".!listedtoplevel.!frame.text"
# which is normally prevented by after_cancel.
## def test_openshell(self):
## pyshell.use_subprocess = False
## ps = pyshell.PyShellFileList(self.root).open_shell()
## self.assertIsInstance(ps, pyshell.PyShell)
class PyShellRemoveLastNewlineAndSurroundingWhitespaceTest(unittest.TestCase):
regexp = pyshell.PyShell._last_newline_re
def all_removed(self, text):
self.assertEqual('', self.regexp.sub('', text))
def none_removed(self, text):
self.assertEqual(text, self.regexp.sub('', text))
def check_result(self, text, expected):
self.assertEqual(expected, self.regexp.sub('', text))
def test_empty(self):
self.all_removed('')
def test_newline(self):
self.all_removed('\n')
def test_whitespace_no_newline(self):
self.all_removed(' ')
self.all_removed(' ')
self.all_removed(' ')
self.all_removed(' ' * 20)
self.all_removed('\t')
self.all_removed('\t\t')
self.all_removed('\t\t\t')
self.all_removed('\t' * 20)
self.all_removed('\t ')
self.all_removed(' \t')
self.all_removed(' \t \t ')
self.all_removed('\t \t \t')
def test_newline_with_whitespace(self):
self.all_removed(' \n')
self.all_removed('\t\n')
self.all_removed(' \t\n')
self.all_removed('\t \n')
self.all_removed('\n ')
self.all_removed('\n\t')
self.all_removed('\n \t')
self.all_removed('\n\t ')
self.all_removed(' \n ')
self.all_removed('\t\n ')
self.all_removed(' \n\t')
self.all_removed('\t\n\t')
self.all_removed('\t \t \t\n')
self.all_removed(' \t \t \n')
self.all_removed('\n\t \t \t')
self.all_removed('\n \t \t ')
def test_multiple_newlines(self):
self.check_result('\n\n', '\n')
self.check_result('\n' * 5, '\n' * 4)
self.check_result('\n' * 5 + '\t', '\n' * 4)
self.check_result('\n' * 20, '\n' * 19)
self.check_result('\n' * 20 + ' ', '\n' * 19)
self.check_result(' \n \n ', ' \n')
self.check_result(' \n\n ', ' \n')
self.check_result(' \n\n', ' \n')
self.check_result('\t\n\n', '\t\n')
self.check_result('\n\n ', '\n')
self.check_result('\n\n\t', '\n')
self.check_result(' \n \n ', ' \n')
self.check_result('\t\n\t\n\t', '\t\n')
def test_non_whitespace(self):
self.none_removed('a')
self.check_result('a\n', 'a')
self.check_result('a\n ', 'a')
self.check_result('a \n ', 'a')
self.check_result('a \n\t', 'a')
self.none_removed('-')
self.check_result('-\n', '-')
self.none_removed('.')
self.check_result('.\n', '.')
def test_unsupported_whitespace(self):
self.none_removed('\v')
self.none_removed('\n\v')
self.check_result('\v\n', '\v')
self.none_removed(' \n\v')
self.check_result('\v\n ', '\v')
if __name__ == '__main__':
unittest.main(verbosity=2)
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