[2.7] bpo-30415: Add new tests for the fnmatch module. (GH-1684). (#1696)

(cherry picked from commit 8175547)

Author: serhiy-storchaka

Lib/test/test_fnmatch.py

@@ -2,23 +2,24 @@
 
 from test import test_support
 import unittest
+import os
 
-from fnmatch import fnmatch, fnmatchcase, _MAXCACHE, _cache
-from fnmatch import fnmatch, fnmatchcase, _MAXCACHE, _cache, _purge
+from fnmatch import (fnmatch, fnmatchcase, translate, filter,
+                     _MAXCACHE, _cache, _purge)
 
 
 class FnmatchTestCase(unittest.TestCase):
 
     def tearDown(self):
         _purge()
 
-    def check_match(self, filename, pattern, should_match=1, fn=fnmatch):
+    def check_match(self, filename, pattern, should_match=True, fn=fnmatch):
         if should_match:
             self.assertTrue(fn(filename, pattern),
                          "expected %r to match pattern %r"
                          % (filename, pattern))
         else:
-            self.assertTrue(not fn(filename, pattern),
+            self.assertFalse(fn(filename, pattern),
                          "expected %r not to match pattern %r"
                          % (filename, pattern))
 
@@ -32,15 +33,15 @@ def test_fnmatch(self):
         check('abc', '*')
         check('abc', 'ab[cd]')
         check('abc', 'ab[!de]')
-        check('abc', 'ab[de]', 0)
-        check('a', '??', 0)
-        check('a', 'b', 0)
+        check('abc', 'ab[de]', False)
+        check('a', '??', False)
+        check('a', 'b', False)
 
         # these test that '\' is handled correctly in character sets;
         # see SF bug #409651
         check('\\', r'[\]')
         check('a', r'[!\]')
-        check('\\', r'[!\]', 0)
+        check('\\', r'[!\]', False)
 
         # test that filenames with newlines in them are handled correctly.
         # http://bugs.python.org/issue6665
@@ -49,10 +50,29 @@ def test_fnmatch(self):
         check('\nfoo', 'foo*', False)
         check('\n', '*')
 
+    def test_mix_unicode_str(self):
+        check = self.check_match
+        check('test', u'*')
+        check(u'test', '*')
+        check('test', u'*', fn=fnmatchcase)
+        check(u'test', '*', fn=fnmatchcase)
+        with test_support.check_warnings(("", UnicodeWarning), quiet=True):
+            check('test\xff', u'*\xff')
+            check(u'test\xff', '*\xff')
+            check('test\xff', u'*\xff', fn=fnmatchcase)
+            check(u'test\xff', '*\xff', fn=fnmatchcase)
+
     def test_fnmatchcase(self):
         check = self.check_match
-        check('AbC', 'abc', 0, fnmatchcase)
-        check('abc', 'AbC', 0, fnmatchcase)
+        check('abc', 'abc', True, fnmatchcase)
+        check('AbC', 'abc', False, fnmatchcase)
+        check('abc', 'AbC', False, fnmatchcase)
+        check('AbC', 'AbC', True, fnmatchcase)
+
+        check('usr/bin', 'usr/bin', True, fnmatchcase)
+        check('usr\\bin', 'usr/bin', False, fnmatchcase)
+        check('usr/bin', 'usr\\bin', False, fnmatchcase)
+        check('usr\\bin', 'usr\\bin', True, fnmatchcase)
 
     def test_cache_clearing(self):
         # check that caches do not grow too large
@@ -64,8 +84,81 @@ def test_cache_clearing(self):
 
         self.assertLessEqual(len(_cache), _MAXCACHE)
 
+    @test_support.requires_unicode
+    def test_unicode(self):
+        with test_support.check_warnings(("", UnicodeWarning), quiet=True):
+            self.check_match(u'test', u'te*')
+            self.check_match(u'test\xff', u'te*\xff')
+            self.check_match(u'test'+unichr(0x20ac), u'te*'+unichr(0x20ac))
+            self.check_match(u'foo\nbar', u'foo*')
+
+    def test_case(self):
+        ignorecase = os.path.normcase('ABC') == os.path.normcase('abc')
+        check = self.check_match
+        check('abc', 'abc')
+        check('AbC', 'abc', ignorecase)
+        check('abc', 'AbC', ignorecase)
+        check('AbC', 'AbC')
+
+    def test_sep(self):
+        normsep = os.path.normcase('\\') == os.path.normcase('/')
+        check = self.check_match
+        check('usr/bin', 'usr/bin')
+        check('usr\\bin', 'usr/bin', normsep)
+        check('usr/bin', 'usr\\bin', normsep)
+        check('usr\\bin', 'usr\\bin')
+
+
+class TranslateTestCase(unittest.TestCase):
+
+    def test_translate(self):
+        self.assertEqual(translate('*'), r'.*\Z(?ms)')
+        self.assertEqual(translate('?'), r'.\Z(?ms)')
+        self.assertEqual(translate('a?b*'), r'a.b.*\Z(?ms)')
+        self.assertEqual(translate('[abc]'), r'[abc]\Z(?ms)')
+        self.assertEqual(translate('[]]'), r'[]]\Z(?ms)')
+        self.assertEqual(translate('[!x]'), r'[^x]\Z(?ms)')
+        self.assertEqual(translate('[^x]'), r'[\^x]\Z(?ms)')
+        self.assertEqual(translate('[x'), r'\[x\Z(?ms)')
+
+
+class FilterTestCase(unittest.TestCase):
+
+    def test_filter(self):
+        self.assertEqual(filter(['Python', 'Ruby', 'Perl', 'Tcl'], 'P*'),
+                         ['Python', 'Perl'])
+        self.assertEqual(filter([u'Python', u'Ruby', u'Perl', u'Tcl'], u'P*'),
+                         [u'Python', u'Perl'])
+        with test_support.check_warnings(("", UnicodeWarning), quiet=True):
+            self.assertEqual(filter([u'test\xff'], u'*\xff'), [u'test\xff'])
+
+    @test_support.requires_unicode
+    def test_mix_bytes_str(self):
+        with test_support.check_warnings(("", UnicodeWarning), quiet=True):
+            self.assertEqual(filter(['test'], u'*'), ['test'])
+            self.assertEqual(filter([u'test'], '*'), [u'test'])
+            self.assertEqual(filter(['test\xff'], u'*'), ['test\xff'])
+            self.assertEqual(filter([u'test\xff'], '*'), [u'test\xff'])
+            self.assertEqual(filter(['test\xff'], u'*\xff'), ['test\xff'])
+            self.assertEqual(filter([u'test\xff'], '*\xff'), [u'test\xff'])
+
+    def test_case(self):
+        ignorecase = os.path.normcase('P') == os.path.normcase('p')
+        self.assertEqual(filter(['Test.py', 'Test.rb', 'Test.PL'], '*.p*'),
+                         ['Test.py', 'Test.PL'] if ignorecase else ['Test.py'])
+        self.assertEqual(filter(['Test.py', 'Test.rb', 'Test.PL'], '*.P*'),
+                         ['Test.py', 'Test.PL'] if ignorecase else ['Test.PL'])
+
+    def test_sep(self):
+        normsep = os.path.normcase('\\') == os.path.normcase('/')
+        self.assertEqual(filter(['usr/bin', 'usr', 'usr\\lib'], 'usr/*'),
+                         ['usr/bin', 'usr\\lib'] if normsep else ['usr/bin'])
+        self.assertEqual(filter(['usr/bin', 'usr', 'usr\\lib'], 'usr\\*'),
+                         ['usr/bin', 'usr\\lib'] if normsep else ['usr\\lib'])
+
+
 def test_main():
-    test_support.run_unittest(FnmatchTestCase)
+    test_support.run_unittest(FnmatchTestCase, TranslateTestCase, FilterTestCase)
 
 
 if __name__ == "__main__":