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1""" !Changing this line will break Test_findfile.test_found!
2Non-gui unit tests for idlelib.GrepDialog methods.
3dummy_command calls grep_it calls findfiles.
4An exception raised in one method will fail callers.
5Otherwise, tests are mostly independent.
6*** Currently only test grep_it.
7"""
8import unittest
9from test.test_support import captured_stdout, findfile
10from idlelib.idle_test.mock_tk import Var
11from idlelib.GrepDialog import GrepDialog
12import re
13
14__file__ = findfile('idlelib/idle_test') + '/test_grep.py'
15
16class Dummy_searchengine:
17    '''GrepDialog.__init__ calls parent SearchDiabolBase which attaches the
18    passed in SearchEngine instance as attribute 'engine'. Only a few of the
19    many possible self.engine.x attributes are needed here.
20    '''
21    def getpat(self):
22        return self._pat
23
24searchengine = Dummy_searchengine()
25
26class Dummy_grep:
27    # Methods tested
28    #default_command = GrepDialog.default_command
29    grep_it = GrepDialog.grep_it.im_func
30    findfiles = GrepDialog.findfiles.im_func
31    # Other stuff needed
32    recvar = Var(False)
33    engine = searchengine
34    def close(self):  # gui method
35        pass
36
37grep = Dummy_grep()
38
39class FindfilesTest(unittest.TestCase):
40    # findfiles is really a function, not a method, could be iterator
41    # test that filename return filename
42    # test that idlelib has many .py files
43    # test that recursive flag adds idle_test .py files
44    pass
45
46class Grep_itTest(unittest.TestCase):
47    # Test captured reports with 0 and some hits.
48    # Should test file names, but Windows reports have mixed / and \ separators
49    # from incomplete replacement, so 'later'.
50
51    def report(self, pat):
52        grep.engine._pat = pat
53        with captured_stdout() as s:
54            grep.grep_it(re.compile(pat), __file__)
55        lines = s.getvalue().split('\n')
56        lines.pop()  # remove bogus '' after last \n
57        return lines
58
59    def test_unfound(self):
60        pat = 'xyz*'*7
61        lines = self.report(pat)
62        self.assertEqual(len(lines), 2)
63        self.assertIn(pat, lines[0])
64        self.assertEqual(lines[1], 'No hits.')
65
66    def test_found(self):
67
68        pat = '""" !Changing this line will break Test_findfile.test_found!'
69        lines = self.report(pat)
70        self.assertEqual(len(lines), 5)
71        self.assertIn(pat, lines[0])
72        self.assertIn('py: 1:', lines[1])  # line number 1
73        self.assertIn('2', lines[3])  # hits found 2
74        self.assertTrue(lines[4].startswith('(Hint:'))
75
76class Default_commandTest(unittest.TestCase):
77    # To write this, mode OutputWindow import to top of GrepDialog
78    # so it can be replaced by captured_stdout in class setup/teardown.
79    pass
80
81if __name__ == '__main__':
82    unittest.main(verbosity=2, exit=False)
83