diff options
| -rw-r--r-- | Lib/test/test_readline.py | 46 | ||||
| -rw-r--r-- | Misc/NEWS.d/next/Tests/2024-07-03-14-41-00.gh-issue-121160.LEtiTd.rst | 2 |
2 files changed, 48 insertions, 0 deletions
diff --git a/Lib/test/test_readline.py b/Lib/test/test_readline.py index 5e0e6f8..91fd7dd 100644 --- a/Lib/test/test_readline.py +++ b/Lib/test/test_readline.py @@ -132,6 +132,32 @@ class TestHistoryManipulation (unittest.TestCase): self.assertEqual(readline.get_history_item(1), "entrée 1") self.assertEqual(readline.get_history_item(2), "entrée 22") + def test_write_read_limited_history(self): + previous_length = readline.get_history_length() + self.addCleanup(readline.set_history_length, previous_length) + + readline.clear_history() + readline.add_history("first line") + readline.add_history("second line") + readline.add_history("third line") + + readline.set_history_length(2) + self.assertEqual(readline.get_history_length(), 2) + readline.write_history_file(TESTFN) + self.addCleanup(os.remove, TESTFN) + + readline.clear_history() + self.assertEqual(readline.get_current_history_length(), 0) + self.assertEqual(readline.get_history_length(), 2) + + readline.read_history_file(TESTFN) + self.assertEqual(readline.get_history_item(1), "second line") + self.assertEqual(readline.get_history_item(2), "third line") + self.assertEqual(readline.get_history_item(3), None) + + # Readline seems to report an additional history element. + self.assertIn(readline.get_current_history_length(), (2, 3)) + class TestReadline(unittest.TestCase): @@ -323,6 +349,26 @@ readline.write_history_file(history_file) self.assertEqual(len(lines), history_size) self.assertEqual(lines[-1].strip(), b"last input") + def test_write_read_limited_history(self): + previous_length = readline.get_history_length() + self.addCleanup(readline.set_history_length, previous_length) + + readline.add_history("first line") + readline.add_history("second line") + readline.add_history("third line") + + readline.set_history_length(2) + self.assertEqual(readline.get_history_length(), 2) + readline.write_history_file(TESTFN) + self.addCleanup(os.remove, TESTFN) + + readline.read_history_file(TESTFN) + # Without clear_history() there's no good way to test if + # the correct entries are present (we're combining history limiting and + # possible deduplication with arbitrary previous content). + # So, we've only tested that the read did not fail. + # See TestHistoryManipulation for the full test. + if __name__ == "__main__": unittest.main() diff --git a/Misc/NEWS.d/next/Tests/2024-07-03-14-41-00.gh-issue-121160.LEtiTd.rst b/Misc/NEWS.d/next/Tests/2024-07-03-14-41-00.gh-issue-121160.LEtiTd.rst new file mode 100644 index 0000000..2c8c9ac --- /dev/null +++ b/Misc/NEWS.d/next/Tests/2024-07-03-14-41-00.gh-issue-121160.LEtiTd.rst @@ -0,0 +1,2 @@ +Add a test for :func:`readline.set_history_length`. Note that this test may +fail on readline libraries. |