diff options
Diffstat (limited to 'Lib/test/test_format.py')
| -rw-r--r-- | Lib/test/test_format.py | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/Lib/test/test_format.py b/Lib/test/test_format.py index bd159f5689..9f7630c58e 100644 --- a/Lib/test/test_format.py +++ b/Lib/test/test_format.py @@ -307,6 +307,25 @@ class FormatTest(unittest.TestCase): finally: locale.setlocale(locale.LC_ALL, oldloc) + @support.cpython_only + def test_optimisations(self): + text = "abcde" # 5 characters + + self.assertIs("%s" % text, text) + self.assertIs("%.5s" % text, text) + self.assertIs("%.10s" % text, text) + self.assertIs("%1s" % text, text) + self.assertIs("%5s" % text, text) + + self.assertIs("{0}".format(text), text) + self.assertIs("{0:s}".format(text), text) + self.assertIs("{0:.5s}".format(text), text) + self.assertIs("{0:.10s}".format(text), text) + self.assertIs("{0:1s}".format(text), text) + self.assertIs("{0:5s}".format(text), text) + + self.assertIs(text % (), text) + self.assertIs(text.format(), text) def test_main(): |