Current File : //opt/alt/python36/lib64/python3.6/idlelib/idle_test/test_grep.py
""" !Changing this line will break Test_findfile.test_found!
Non-gui unit tests for grep.GrepDialog methods.
dummy_command calls grep_it calls findfiles.
An exception raised in one method will fail callers.
Otherwise, tests are mostly independent.
Currently only test grep_it, coverage 51%.
"""
from idlelib.grep import GrepDialog
import unittest
from test.support import captured_stdout
from idlelib.idle_test.mock_tk import Var
import re
class Dummy_searchengine:
'''GrepDialog.__init__ calls parent SearchDiabolBase which attaches the
passed in SearchEngine instance as attribute 'engine'. Only a few of the
many possible self.engine.x attributes are needed here.
'''
def getpat(self):
return self._pat
searchengine = Dummy_searchengine()
class Dummy_grep:
# Methods tested
#default_command = GrepDialog.default_command
grep_it = GrepDialog.grep_it
findfiles = GrepDialog.findfiles
# Other stuff needed
recvar = Var(False)
engine = searchengine
def close(self): # gui method
pass
grep = Dummy_grep()
class FindfilesTest(unittest.TestCase):
# findfiles is really a function, not a method, could be iterator
# test that filename return filename
# test that idlelib has many .py files
# test that recursive flag adds idle_test .py files
pass
class Grep_itTest(unittest.TestCase):
# Test captured reports with 0 and some hits.
# Should test file names, but Windows reports have mixed / and \ separators
# from incomplete replacement, so 'later'.
def report(self, pat):
grep.engine._pat = pat
with captured_stdout() as s:
grep.grep_it(re.compile(pat), __file__)
lines = s.getvalue().split('\n')
lines.pop() # remove bogus '' after last \n
return lines
def test_unfound(self):
pat = 'xyz*'*7
lines = self.report(pat)
self.assertEqual(len(lines), 2)
self.assertIn(pat, lines[0])
self.assertEqual(lines[1], 'No hits.')
def test_found(self):
pat = '""" !Changing this line will break Test_findfile.test_found!'
lines = self.report(pat)
self.assertEqual(len(lines), 5)
self.assertIn(pat, lines[0])
self.assertIn('py: 1:', lines[1]) # line number 1
self.assertIn('2', lines[3]) # hits found 2
self.assertTrue(lines[4].startswith('(Hint:'))
class Default_commandTest(unittest.TestCase):
# To write this, move outwin import to top of GrepDialog
# so it can be replaced by captured_stdout in class setup/teardown.
pass
if __name__ == '__main__':
unittest.main(verbosity=2)
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