+ def test_rename_no_overwrite(self):
+ workdir = fileutil.abspath_expanduser_unicode(u"test_rename_no_overwrite")
+ fileutil.make_dirs(workdir)
+
+ source_path = os.path.join(workdir, "source")
+ dest_path = os.path.join(workdir, "dest")
+
+ # when neither file exists
+ self.failUnlessRaises(OSError, fileutil.rename_no_overwrite, source_path, dest_path)
+
+ # when only dest exists
+ fileutil.write(dest_path, "dest")
+ self.failUnlessRaises(OSError, fileutil.rename_no_overwrite, source_path, dest_path)
+ self.failUnlessEqual(fileutil.read(dest_path), "dest")
+
+ # when both exist
+ fileutil.write(source_path, "source")
+ self.failUnlessRaises(OSError, fileutil.rename_no_overwrite, source_path, dest_path)
+ self.failUnlessEqual(fileutil.read(source_path), "source")
+ self.failUnlessEqual(fileutil.read(dest_path), "dest")
+
+ # when only source exists
+ os.remove(dest_path)
+ fileutil.rename_no_overwrite(source_path, dest_path)
+ self.failUnlessEqual(fileutil.read(dest_path), "source")
+ self.failIf(os.path.exists(source_path))
+
+ def test_replace_file(self):
+ workdir = fileutil.abspath_expanduser_unicode(u"test_replace_file")
+ fileutil.make_dirs(workdir)
+
+ backup_path = os.path.join(workdir, "backup")
+ replaced_path = os.path.join(workdir, "replaced")
+ replacement_path = os.path.join(workdir, "replacement")
+
+ # when none of the files exist
+ self.failUnlessRaises(fileutil.ConflictError, fileutil.replace_file, replaced_path, replacement_path, backup_path)
+
+ # when only replaced exists
+ fileutil.write(replaced_path, "foo")
+ self.failUnlessRaises(fileutil.ConflictError, fileutil.replace_file, replaced_path, replacement_path, backup_path)
+ self.failUnlessEqual(fileutil.read(replaced_path), "foo")
+
+ # when both replaced and replacement exist, but not backup
+ fileutil.write(replacement_path, "bar")
+ fileutil.replace_file(replaced_path, replacement_path, backup_path)
+ self.failUnlessEqual(fileutil.read(backup_path), "foo")
+ self.failUnlessEqual(fileutil.read(replaced_path), "bar")
+ self.failIf(os.path.exists(replacement_path))
+
+ # when only replacement exists
+ os.remove(backup_path)
+ os.remove(replaced_path)
+ fileutil.write(replacement_path, "bar")
+ fileutil.replace_file(replaced_path, replacement_path, backup_path)
+ self.failUnlessEqual(fileutil.read(replaced_path), "bar")
+ self.failIf(os.path.exists(replacement_path))
+ self.failIf(os.path.exists(backup_path))
+
+ # when replaced, replacement and backup all exist
+ fileutil.write(replaced_path, "foo")
+ fileutil.write(replacement_path, "bar")
+ fileutil.write(backup_path, "bak")
+ fileutil.replace_file(replaced_path, replacement_path, backup_path)
+ self.failUnlessEqual(fileutil.read(backup_path), "foo")
+ self.failUnlessEqual(fileutil.read(replaced_path), "bar")
+ self.failIf(os.path.exists(replacement_path))
+