Skip more incompatible tests on case-insenstive filesystems

test/test_caching.py

@@ -163,11 +163,16 @@ def test_nocase_findfile(self):
     def test_nocase_findfile_parent(self):
         cache = FileInfoCache()
         self.mkfile(os.path.join('aaaA', 'aaA1'), '1')
+        fs_case_sensitive = not os.path.exists('aAaA')
         self.mkfile(os.path.join('aAaA', 'aaa2'), '2')
 
+        if not fs_case_sensitive:
+            print('Skipping some tests due to case-insensitive filesystem')
+
         # right now we don't handle this case, though it would be possible
         # to generate all possible matches and see if the number is exactly
         # one.
-        with self.assertRaises(IOError) as cm:
-            cache.nocase_findfile(self.mkpath(os.path.join('aaAA', 'aaa2')))
-        self.assertEquals(errno.EEXIST, cm.exception.errno)
+        if fs_case_sensitive:
+            with self.assertRaises(IOError) as cm:
+                cache.nocase_findfile(self.mkpath(os.path.join('aaAA', 'aaa2')))
+            self.assertEquals(errno.EEXIST, cm.exception.errno)