157 lines
5.0 KiB
Python
157 lines
5.0 KiB
Python
""" !Changing this line will break Test_findfile.test_found!
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Non-gui unit tests for grep.GrepDialog methods.
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dummy_command calls grep_it calls findfiles.
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An exception raised in one method will fail callers.
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Otherwise, tests are mostly independent.
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Currently only test grep_it, coverage 51%.
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"""
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from idlelib import grep
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import unittest
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from test.support import captured_stdout
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from idlelib.idle_test.mock_tk import Var
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import os
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import re
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class Dummy_searchengine:
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'''GrepDialog.__init__ calls parent SearchDiabolBase which attaches the
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passed in SearchEngine instance as attribute 'engine'. Only a few of the
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many possible self.engine.x attributes are needed here.
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'''
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def getpat(self):
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return self._pat
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searchengine = Dummy_searchengine()
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class Dummy_grep:
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# Methods tested
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#default_command = GrepDialog.default_command
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grep_it = grep.GrepDialog.grep_it
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# Other stuff needed
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recvar = Var(False)
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engine = searchengine
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def close(self): # gui method
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pass
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_grep = Dummy_grep()
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class FindfilesTest(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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cls.realpath = os.path.realpath(__file__)
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cls.path = os.path.dirname(cls.realpath)
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@classmethod
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def tearDownClass(cls):
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del cls.realpath, cls.path
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def test_invaliddir(self):
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with captured_stdout() as s:
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filelist = list(grep.findfiles('invaliddir', '*.*', False))
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self.assertEqual(filelist, [])
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self.assertIn('invalid', s.getvalue())
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def test_curdir(self):
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# Test os.curdir.
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ff = grep.findfiles
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save_cwd = os.getcwd()
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os.chdir(self.path)
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filename = 'test_grep.py'
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filelist = list(ff(os.curdir, filename, False))
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self.assertIn(os.path.join(os.curdir, filename), filelist)
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os.chdir(save_cwd)
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def test_base(self):
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ff = grep.findfiles
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readme = os.path.join(self.path, 'README.txt')
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# Check for Python files in path where this file lives.
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filelist = list(ff(self.path, '*.py', False))
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# This directory has many Python files.
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self.assertGreater(len(filelist), 10)
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self.assertIn(self.realpath, filelist)
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self.assertNotIn(readme, filelist)
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# Look for .txt files in path where this file lives.
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filelist = list(ff(self.path, '*.txt', False))
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self.assertNotEqual(len(filelist), 0)
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self.assertNotIn(self.realpath, filelist)
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self.assertIn(readme, filelist)
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# Look for non-matching pattern.
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filelist = list(ff(self.path, 'grep.*', False))
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self.assertEqual(len(filelist), 0)
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self.assertNotIn(self.realpath, filelist)
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def test_recurse(self):
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ff = grep.findfiles
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parent = os.path.dirname(self.path)
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grepfile = os.path.join(parent, 'grep.py')
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pat = '*.py'
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# Get Python files only in parent directory.
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filelist = list(ff(parent, pat, False))
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parent_size = len(filelist)
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# Lots of Python files in idlelib.
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self.assertGreater(parent_size, 20)
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self.assertIn(grepfile, filelist)
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# Without subdirectories, this file isn't returned.
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self.assertNotIn(self.realpath, filelist)
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# Include subdirectories.
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filelist = list(ff(parent, pat, True))
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# More files found now.
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self.assertGreater(len(filelist), parent_size)
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self.assertIn(grepfile, filelist)
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# This file exists in list now.
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self.assertIn(self.realpath, filelist)
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# Check another level up the tree.
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parent = os.path.dirname(parent)
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filelist = list(ff(parent, '*.py', True))
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self.assertIn(self.realpath, filelist)
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class Grep_itTest(unittest.TestCase):
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# Test captured reports with 0 and some hits.
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# Should test file names, but Windows reports have mixed / and \ separators
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# from incomplete replacement, so 'later'.
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def report(self, pat):
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_grep.engine._pat = pat
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with captured_stdout() as s:
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_grep.grep_it(re.compile(pat), __file__)
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lines = s.getvalue().split('\n')
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lines.pop() # remove bogus '' after last \n
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return lines
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def test_unfound(self):
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pat = 'xyz*'*7
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lines = self.report(pat)
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self.assertEqual(len(lines), 2)
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self.assertIn(pat, lines[0])
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self.assertEqual(lines[1], 'No hits.')
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def test_found(self):
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pat = '""" !Changing this line will break Test_findfile.test_found!'
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lines = self.report(pat)
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self.assertEqual(len(lines), 5)
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self.assertIn(pat, lines[0])
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self.assertIn('py: 1:', lines[1]) # line number 1
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self.assertIn('2', lines[3]) # hits found 2
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self.assertTrue(lines[4].startswith('(Hint:'))
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class Default_commandTest(unittest.TestCase):
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# To write this, move outwin import to top of GrepDialog
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# so it can be replaced by captured_stdout in class setup/teardown.
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pass
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if __name__ == '__main__':
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unittest.main(verbosity=2)
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