From fcf80b0e22c4a89c0e50ab1476e40832cf5cf0ad Mon Sep 17 00:00:00 2001 From: Artem Muterko Date: Tue, 21 Feb 2017 16:59:39 +0200 Subject: [PATCH] bpo-29598 Add couple of unit tests for pdb module --- Lib/test/test_pdb.py | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) diff --git a/Lib/test/test_pdb.py b/Lib/test/test_pdb.py index 0ea2af5541750c..1d6bee99e9758c 100644 --- a/Lib/test/test_pdb.py +++ b/Lib/test/test_pdb.py @@ -1,6 +1,8 @@ # A test suite for pdb; not very comprehensive at the moment. +import dis import doctest +import inspect import os import pdb import sys @@ -1110,6 +1112,44 @@ def test_readrc_kwarg(self): if save_home is not None: os.environ['HOME'] = save_home + def test_find_function_with_invalid_filename(self): + self.assertIsNone(pdb.find_function('foo', 'invalid filename')) + + def test_getsourcelines(self): + def foo(): + pass # pragma: no cover + lines, lineno = inspect.findsource(foo) + expected_lines = inspect.getblock(lines[lineno:]) + expected_lineno = lineno + 1 + actual_lines, actual_lineno = pdb.getsourcelines(foo) + self.assertEqual(actual_lines, expected_lines) + self.assertEqual(actual_lineno, expected_lineno) + + def test_getsourcelines_with_module_frame_obj(self): + for frame, *unused in inspect.getouterframes(inspect.currentframe()): + if frame.f_globals is frame.f_locals: + module_frame = frame + break + expected_lines = inspect.findsource(module_frame)[0] + lines, lineno = pdb.getsourcelines(module_frame) + self.assertEqual(lines, expected_lines) + self.assertEqual(lineno, 1) + + def test_getsourcelines_with_module_obj(self): + module = inspect.getmodule(inspect.currentframe()) + expected_lines = inspect.findsource(module)[0] + lines, lineno = pdb.getsourcelines(module) + self.assertEqual(lines, expected_lines) + self.assertEqual(lineno, 1) + + def test_lasti2lineno(self): + code_obj = inspect.currentframe().f_code + max_offset, max_lineno = max(dis.findlinestarts(code_obj)) + min_offset, min_lineno = min(dis.findlinestarts(code_obj)) + self.assertEqual(pdb.lasti2lineno(code_obj, max_offset), max_lineno) + self.assertEqual(pdb.lasti2lineno(code_obj, max_offset+1), max_lineno) + self.assertEqual(pdb.lasti2lineno(code_obj, min_offset-1), 0) + def tearDown(self): support.unlink(support.TESTFN) pFad - Phonifier reborn

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