diff options
| -rw-r--r-- | Lib/test/test_dis.py | 41 | ||||
| -rw-r--r-- | Misc/NEWS.d/next/Tests/2021-10-30-19-00-25.bpo-45578.bvu6X2.rst | 1 |
2 files changed, 42 insertions, 0 deletions
diff --git a/Lib/test/test_dis.py b/Lib/test/test_dis.py index edda967..2cb2eff 100644 --- a/Lib/test/test_dis.py +++ b/Lib/test/test_dis.py @@ -1244,5 +1244,46 @@ class TestBytecodeTestCase(BytecodeTestCase): with self.assertRaises(AssertionError): self.assertNotInBytecode(code, "LOAD_CONST", 1) + +class TestDisTraceback(unittest.TestCase): + def setUp(self) -> None: + try: # We need to clean up existing tracebacks + del sys.last_traceback + except AttributeError: + pass + return super().setUp() + + def get_disassembly(self, tb): + output = io.StringIO() + with contextlib.redirect_stdout(output): + dis.distb(tb) + return output.getvalue() + + def test_distb_empty(self): + with self.assertRaises(RuntimeError): + dis.distb() + + def test_distb_last_traceback(self): + # We need to have an existing last traceback in `sys`: + tb = get_tb() + sys.last_traceback = tb + + self.assertEqual(self.get_disassembly(None), dis_traceback) + + def test_distb_explicit_arg(self): + tb = get_tb() + + self.assertEqual(self.get_disassembly(tb), dis_traceback) + + +class TestDisTracebackWithFile(TestDisTraceback): + # Run the `distb` tests again, using the file arg instead of print + def get_disassembly(self, tb): + output = io.StringIO() + with contextlib.redirect_stdout(output): + dis.distb(tb, file=output) + return output.getvalue() + + if __name__ == "__main__": unittest.main() diff --git a/Misc/NEWS.d/next/Tests/2021-10-30-19-00-25.bpo-45578.bvu6X2.rst b/Misc/NEWS.d/next/Tests/2021-10-30-19-00-25.bpo-45578.bvu6X2.rst new file mode 100644 index 0000000..3d0e0ca --- /dev/null +++ b/Misc/NEWS.d/next/Tests/2021-10-30-19-00-25.bpo-45578.bvu6X2.rst @@ -0,0 +1 @@ +Add tests for :func:`dis.distb` |