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      1 """ !Changing this line will break Test_findfile.test_found!
      2 Non-gui unit tests for grep.GrepDialog methods.
      3 dummy_command calls grep_it calls findfiles.
      4 An exception raised in one method will fail callers.
      5 Otherwise, tests are mostly independent.
      6 *** Currently only test grep_it.
      7 """
      8 import unittest
      9 from test.support import captured_stdout
     10 from idlelib.idle_test.mock_tk import Var
     11 from idlelib.grep import GrepDialog
     12 import re
     13 
     14 class Dummy_searchengine:
     15     '''GrepDialog.__init__ calls parent SearchDiabolBase which attaches the
     16     passed in SearchEngine instance as attribute 'engine'. Only a few of the
     17     many possible self.engine.x attributes are needed here.
     18     '''
     19     def getpat(self):
     20         return self._pat
     21 
     22 searchengine = Dummy_searchengine()
     23 
     24 class Dummy_grep:
     25     # Methods tested
     26     #default_command = GrepDialog.default_command
     27     grep_it = GrepDialog.grep_it
     28     findfiles = GrepDialog.findfiles
     29     # Other stuff needed
     30     recvar = Var(False)
     31     engine = searchengine
     32     def close(self):  # gui method
     33         pass
     34 
     35 grep = Dummy_grep()
     36 
     37 class FindfilesTest(unittest.TestCase):
     38     # findfiles is really a function, not a method, could be iterator
     39     # test that filename return filename
     40     # test that idlelib has many .py files
     41     # test that recursive flag adds idle_test .py files
     42     pass
     43 
     44 class Grep_itTest(unittest.TestCase):
     45     # Test captured reports with 0 and some hits.
     46     # Should test file names, but Windows reports have mixed / and \ separators
     47     # from incomplete replacement, so 'later'.
     48 
     49     def report(self, pat):
     50         grep.engine._pat = pat
     51         with captured_stdout() as s:
     52             grep.grep_it(re.compile(pat), __file__)
     53         lines = s.getvalue().split('\n')
     54         lines.pop()  # remove bogus '' after last \n
     55         return lines
     56 
     57     def test_unfound(self):
     58         pat = 'xyz*'*7
     59         lines = self.report(pat)
     60         self.assertEqual(len(lines), 2)
     61         self.assertIn(pat, lines[0])
     62         self.assertEqual(lines[1], 'No hits.')
     63 
     64     def test_found(self):
     65 
     66         pat = '""" !Changing this line will break Test_findfile.test_found!'
     67         lines = self.report(pat)
     68         self.assertEqual(len(lines), 5)
     69         self.assertIn(pat, lines[0])
     70         self.assertIn('py: 1:', lines[1])  # line number 1
     71         self.assertIn('2', lines[3])  # hits found 2
     72         self.assertTrue(lines[4].startswith('(Hint:'))
     73 
     74 class Default_commandTest(unittest.TestCase):
     75     # To write this, move outwin import to top of GrepDialog
     76     # so it can be replaced by captured_stdout in class setup/teardown.
     77     pass
     78 
     79 if __name__ == '__main__':
     80     unittest.main(verbosity=2, exit=False)
     81