homepage

$ ./python -m test -W -R3:3 test_pdb
[1/1] test_pdb
[...]
======================================================================
FAIL: test_list_commands (test.test_pdb)
Doctest: test.test_pdb.test_list_commands
----------------------------------------------------------------------
Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 2193, in runTest
 raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for test.test_pdb.test_list_commands
 File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 288, in test_list_commands
----------------------------------------------------------------------
File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 311, in test.test_pdb.test_list_commands
Failed example:
 with PdbTestInput([ # doctest: +ELLIPSIS, +NORMALIZE_WHITESPACE
 'list', # list first function
 'step', # step into second function
 'list', # list second function
 'list', # continue listing to EOF
 'list 1,3', # list specific lines
 'list x', # invalid argument
 'next', # step to import
 'next', # step over import
 'step', # step into do_nothing
 'longlist', # list all lines
 'source do_something', # list all lines of function
 'source fooxxx', # something that doesn't exit
 'continue',
 ]):
 test_function()
Exception raised:
 Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 1324, in __run
 compileflags, 1), test.globs)
 File "<doctest test.test_pdb.test_list_commands[2]>", line 1, in <module>
 with PdbTestInput([ # doctest: +ELLIPSIS, +NORMALIZE_WHITESPACE
 NameError: name 'PdbTestInput' is not defined
======================================================================
FAIL: test_next_until_return_at_return_event (test.test_pdb)
Doctest: test.test_pdb.test_next_until_return_at_return_event
----------------------------------------------------------------------
Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 2193, in runTest
 raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for test.test_pdb.test_next_until_return_at_return_event
 File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 603, in test_next_until_return_at_return_event
----------------------------------------------------------------------
File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 617, in test.test_pdb.test_next_until_return_at_return_event
Failed example:
 with PdbTestInput(['break test_function_2',
 'continue',
 'return',
 'next',
 'continue',
 'return',
 'until',
 'continue',
 'return',
 'return',
 'continue']):
 test_function()
Exception raised:
 Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 1324, in __run
 compileflags, 1), test.globs)
 File "<doctest test.test_pdb.test_next_until_return_at_return_event[2]>", line 1, in <module>
 with PdbTestInput(['break test_function_2',
 NameError: name 'PdbTestInput' is not defined
======================================================================
FAIL: test_pdb_basic_commands (test.test_pdb)
Doctest: test.test_pdb.test_pdb_basic_commands
----------------------------------------------------------------------
Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 2193, in runTest
 raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for test.test_pdb.test_pdb_basic_commands
 File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 62, in test_pdb_basic_commands
----------------------------------------------------------------------
File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 81, in test.test_pdb.test_pdb_basic_commands
Failed example:
 with PdbTestInput([ # doctest: +ELLIPSIS, +NORMALIZE_WHITESPACE
 'step', # entering the function call
 'args', # display function args
 'list', # list function source
 'bt', # display backtrace
 'up', # step up to test_function()
 'down', # step down to test_function_2() again
 'next', # stepping to print(foo)
 'next', # stepping to the for loop
 'step', # stepping into the for loop
 'until', # continuing until out of the for loop
 'next', # executing the print(bar)
 'jump 8', # jump over second for loop
 'return', # return out of function
 'retval', # display return value
 'continue',
 ]):
 test_function()
Exception raised:
 Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 1324, in __run
 compileflags, 1), test.globs)
 File "<doctest test.test_pdb.test_pdb_basic_commands[2]>", line 1, in <module>
 with PdbTestInput([ # doctest: +ELLIPSIS, +NORMALIZE_WHITESPACE
 NameError: name 'PdbTestInput' is not defined
======================================================================
FAIL: test_pdb_breakpoint_commands (test.test_pdb)
Doctest: test.test_pdb.test_pdb_breakpoint_commands
----------------------------------------------------------------------
Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 2193, in runTest
 raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for test.test_pdb.test_pdb_breakpoint_commands
 File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 172, in test_pdb_breakpoint_commands
----------------------------------------------------------------------
File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 194, in test.test_pdb.test_pdb_breakpoint_commands
Failed example:
 with PdbTestInput([ # doctest: +NORMALIZE_WHITESPACE
 'break 3',
 'disable 1',
 'ignore 1 10',
 'condition 1 1 < 2',
 'break 4',
 'break 4',
 'break',
 'clear 3',
 'break',
 'condition 1',
 'enable 1',
 'clear 1',
 'commands 2',
 'p "42"',
 'print("42", 7*6)', # Issue 18764 (not about breakpoints)
 'end',
 'continue', # will stop at breakpoint 2 (line 4)
 'clear', # clear all!
 'y',
 'tbreak 5',
 'continue', # will stop at temporary breakpoint
 'break', # make sure breakpoint is gone
 'continue',
 ]):
 test_function()
Exception raised:
 Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 1324, in __run
 compileflags, 1), test.globs)
 File "<doctest test.test_pdb.test_pdb_breakpoint_commands[5]>", line 1, in <module>
 with PdbTestInput([ # doctest: +NORMALIZE_WHITESPACE
 NameError: name 'PdbTestInput' is not defined
======================================================================
FAIL: test_pdb_continue_in_bottomframe (test.test_pdb)
Doctest: test.test_pdb.test_pdb_continue_in_bottomframe
----------------------------------------------------------------------
Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 2193, in runTest
 raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for test.test_pdb.test_pdb_continue_in_bottomframe
 File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 517, in test_pdb_continue_in_bottomframe
----------------------------------------------------------------------
File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 529, in test.test_pdb.test_pdb_continue_in_bottomframe
Failed example:
 with PdbTestInput([ # doctest: +ELLIPSIS
 'next',
 'break 7',
 'continue',
 'next',
 'continue',
 'continue',
 ]):
 test_function()
Exception raised:
 Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 1324, in __run
 compileflags, 1), test.globs)
 File "<doctest test.test_pdb.test_pdb_continue_in_bottomframe[1]>", line 1, in <module>
 with PdbTestInput([ # doctest: +ELLIPSIS
 NameError: name 'PdbTestInput' is not defined
======================================================================
FAIL: test_pdb_displayhook (test.test_pdb)
Doctest: test.test_pdb.test_pdb_displayhook
----------------------------------------------------------------------
Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 2193, in runTest
 raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for test.test_pdb.test_pdb_displayhook
 File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 33, in test_pdb_displayhook
----------------------------------------------------------------------
File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 40, in test.test_pdb.test_pdb_displayhook
Failed example:
 with PdbTestInput([
 'foo',
 'bar',
 'for i in range(5): print(i)',
 'continue',
 ]):
 test_function(1, None)
Exception raised:
 Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 1324, in __run
 compileflags, 1), test.globs)
 File "<doctest test.test_pdb.test_pdb_displayhook[1]>", line 1, in <module>
 with PdbTestInput([
 NameError: name 'PdbTestInput' is not defined
======================================================================
FAIL: test_pdb_next_command_for_generator (test.test_pdb)
Doctest: test.test_pdb.test_pdb_next_command_for_generator
----------------------------------------------------------------------
Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 2193, in runTest
 raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for test.test_pdb.test_pdb_next_command_for_generator
 File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 666, in test_pdb_next_command_for_generator
----------------------------------------------------------------------
File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 684, in test.test_pdb.test_pdb_next_command_for_generator
Failed example:
 with PdbTestInput(['step',
 'step',
 'step',
 'next',
 'next',
 'step',
 'step',
 'continue']):
 test_function()
Exception raised:
 Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 1324, in __run
 compileflags, 1), test.globs)
 File "<doctest test.test_pdb.test_pdb_next_command_for_generator[2]>", line 1, in <module>
 with PdbTestInput(['step',
 NameError: name 'PdbTestInput' is not defined
======================================================================
FAIL: test_pdb_next_command_in_generator_for_loop (test.test_pdb)
Doctest: test.test_pdb.test_pdb_next_command_in_generator_for_loop
----------------------------------------------------------------------
Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 2193, in runTest
 raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for test.test_pdb.test_pdb_next_command_in_generator_for_loop
 File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 820, in test_pdb_next_command_in_generator_for_loop
----------------------------------------------------------------------
File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 833, in test.test_pdb.test_pdb_next_command_in_generator_for_loop
Failed example:
 with PdbTestInput(['break test_gen',
 'continue',
 'next',
 'next',
 'next',
 'continue']):
 test_function()
Exception raised:
 Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 1324, in __run
 compileflags, 1), test.globs)
 File "<doctest test.test_pdb.test_pdb_next_command_in_generator_for_loop[2]>", line 1, in <module>
 with PdbTestInput(['break test_gen',
 NameError: name 'PdbTestInput' is not defined
======================================================================
FAIL: test_pdb_next_command_subiterator (test.test_pdb)
Doctest: test.test_pdb.test_pdb_next_command_subiterator
----------------------------------------------------------------------
Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 2193, in runTest
 raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for test.test_pdb.test_pdb_next_command_subiterator
 File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 861, in test_pdb_next_command_subiterator
----------------------------------------------------------------------
File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 878, in test.test_pdb.test_pdb_next_command_subiterator
Failed example:
 with PdbTestInput(['step',
 'step',
 'next',
 'next',
 'next',
 'continue']):
 test_function()
Exception raised:
 Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 1324, in __run
 compileflags, 1), test.globs)
 File "<doctest test.test_pdb.test_pdb_next_command_subiterator[3]>", line 1, in <module>
 with PdbTestInput(['step',
 NameError: name 'PdbTestInput' is not defined
======================================================================
FAIL: test_pdb_return_command_for_generator (test.test_pdb)
Doctest: test.test_pdb.test_pdb_return_command_for_generator
----------------------------------------------------------------------
Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 2193, in runTest
 raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for test.test_pdb.test_pdb_return_command_for_generator
 File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 723, in test_pdb_return_command_for_generator
----------------------------------------------------------------------
File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 742, in test.test_pdb.test_pdb_return_command_for_generator
Failed example:
 with PdbTestInput(['step',
 'step',
 'step',
 'return',
 'step',
 'step',
 'continue']):
 test_function()
Exception raised:
 Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 1324, in __run
 compileflags, 1), test.globs)
 File "<doctest test.test_pdb.test_pdb_return_command_for_generator[2]>", line 1, in <module>
 with PdbTestInput(['step',
 NameError: name 'PdbTestInput' is not defined
======================================================================
FAIL: test_pdb_run_with_code_object (test.test_pdb)
Doctest: test.test_pdb.test_pdb_run_with_code_object
----------------------------------------------------------------------
Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 2193, in runTest
 raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for test.test_pdb.test_pdb_run_with_code_object
 File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 581, in test_pdb_run_with_code_object
----------------------------------------------------------------------
File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 584, in test.test_pdb.test_pdb_run_with_code_object
Failed example:
 with PdbTestInput(['step','x', 'continue']): # doctest: +ELLIPSIS
 pdb_invoke('run', compile('x=1', '<string>', 'exec'))
Exception raised:
 Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 1324, in __run
 compileflags, 1), test.globs)
 File "<doctest test.test_pdb.test_pdb_run_with_code_object[0]>", line 1, in <module>
 with PdbTestInput(['step','x', 'continue']): # doctest: +ELLIPSIS
 NameError: name 'PdbTestInput' is not defined
----------------------------------------------------------------------
File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 594, in test.test_pdb.test_pdb_run_with_code_object
Failed example:
 with PdbTestInput(['x', 'continue']):
 x=0
 pdb_invoke('runeval', compile('x+1', '<string>', 'eval'))
Exception raised:
 Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 1324, in __run
 compileflags, 1), test.globs)
 File "<doctest test.test_pdb.test_pdb_run_with_code_object[1]>", line 1, in <module>
 with PdbTestInput(['x', 'continue']):
 NameError: name 'PdbTestInput' is not defined
======================================================================
FAIL: test_pdb_run_with_incorrect_argument (test.test_pdb)
Doctest: test.test_pdb.test_pdb_run_with_incorrect_argument
----------------------------------------------------------------------
Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 2193, in runTest
 raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for test.test_pdb.test_pdb_run_with_incorrect_argument
 File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 565, in test_pdb_run_with_incorrect_argument
----------------------------------------------------------------------
File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 568, in test.test_pdb.test_pdb_run_with_incorrect_argument
Failed example:
 pti = PdbTestInput(['continue',])
Exception raised:
 Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 1324, in __run
 compileflags, 1), test.globs)
 File "<doctest test.test_pdb.test_pdb_run_with_incorrect_argument[0]>", line 1, in <module>
 pti = PdbTestInput(['continue',])
 NameError: name 'PdbTestInput' is not defined
----------------------------------------------------------------------
File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 569, in test.test_pdb.test_pdb_run_with_incorrect_argument
Failed example:
 with pti:
 pdb_invoke('run', lambda x: x)
Expected:
 Traceback (most recent call last):
 TypeError: exec() arg 1 must be a string, bytes or code object
Got:
 Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 1324, in __run
 compileflags, 1), test.globs)
 File "<doctest test.test_pdb.test_pdb_run_with_incorrect_argument[1]>", line 1, in <module>
 with pti:
 NameError: name 'pti' is not defined
----------------------------------------------------------------------
File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 574, in test.test_pdb.test_pdb_run_with_incorrect_argument
Failed example:
 with pti:
 pdb_invoke('runeval', lambda x: x)
Expected:
 Traceback (most recent call last):
 TypeError: eval() arg 1 must be a string, bytes or code object
Got:
 Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 1324, in __run
 compileflags, 1), test.globs)
 File "<doctest test.test_pdb.test_pdb_run_with_incorrect_argument[2]>", line 1, in <module>
 with pti:
 NameError: name 'pti' is not defined
======================================================================
FAIL: test_pdb_skip_modules (test.test_pdb)
Doctest: test.test_pdb.test_pdb_skip_modules
----------------------------------------------------------------------
Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 2193, in runTest
 raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for test.test_pdb.test_pdb_skip_modules
 File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 446, in test_pdb_skip_modules
----------------------------------------------------------------------
File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 454, in test.test_pdb.test_pdb_skip_modules
Failed example:
 with PdbTestInput([
 'step',
 'continue',
 ]):
 skip_module()
Exception raised:
 Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 1324, in __run
 compileflags, 1), test.globs)
 File "<doctest test.test_pdb.test_pdb_skip_modules[1]>", line 1, in <module>
 with PdbTestInput([
 NameError: name 'PdbTestInput' is not defined
======================================================================
FAIL: test_pdb_skip_modules_with_callback (test.test_pdb)
Doctest: test.test_pdb.test_pdb_skip_modules_with_callback
----------------------------------------------------------------------
Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 2193, in runTest
 raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for test.test_pdb.test_pdb_skip_modules_with_callback
 File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 474, in test_pdb_skip_modules_with_callback
----------------------------------------------------------------------
File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 483, in test.test_pdb.test_pdb_skip_modules_with_callback
Failed example:
 with PdbTestInput([
 'step',
 'step',
 'step',
 'step',
 'step',
 'continue',
 ]):
 skip_module()
 pass # provides something to "step" to
Exception raised:
 Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 1324, in __run
 compileflags, 1), test.globs)
 File "<doctest test.test_pdb.test_pdb_skip_modules_with_callback[1]>", line 1, in <module>
 with PdbTestInput([
 NameError: name 'PdbTestInput' is not defined
======================================================================
FAIL: test_pdb_until_command_for_generator (test.test_pdb)
Doctest: test.test_pdb.test_pdb_until_command_for_generator
----------------------------------------------------------------------
Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 2193, in runTest
 raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for test.test_pdb.test_pdb_until_command_for_generator
 File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 776, in test_pdb_until_command_for_generator
----------------------------------------------------------------------
File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 791, in test.test_pdb.test_pdb_until_command_for_generator
Failed example:
 with PdbTestInput(['step',
 'until 4',
 'step',
 'step',
 'continue']):
 test_function()
Exception raised:
 Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 1324, in __run
 compileflags, 1), test.globs)
 File "<doctest test.test_pdb.test_pdb_until_command_for_generator[2]>", line 1, in <module>
 with PdbTestInput(['step',
 NameError: name 'PdbTestInput' is not defined
======================================================================
FAIL: test_post_mortem (test.test_pdb)
Doctest: test.test_pdb.test_post_mortem
----------------------------------------------------------------------
Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 2193, in runTest
 raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for test.test_pdb.test_post_mortem
 File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 384, in test_post_mortem
----------------------------------------------------------------------
File "/home/antoine/cpython/default/Lib/test/test_pdb.py", line 398, in test.test_pdb.test_post_mortem
Failed example:
 with PdbTestInput([ # doctest: +ELLIPSIS, +NORMALIZE_WHITESPACE
 'next', # step over exception-raising call
 'bt', # get a backtrace
 'list', # list code of test_function()
 'down', # step into test_function_2()
 'list', # list code of test_function_2()
 'continue',
 ]):
 try:
 test_function()
 except ZeroDivisionError:
 print('Correctly reraised.')
Exception raised:
 Traceback (most recent call last):
 File "/home/antoine/cpython/default/Lib/doctest.py", line 1324, in __run
 compileflags, 1), test.globs)
 File "<doctest test.test_pdb.test_post_mortem[2]>", line 1, in <module>
 with PdbTestInput([ # doctest: +ELLIPSIS, +NORMALIZE_WHITESPACE
 NameError: name 'PdbTestInput' is not defined

The doctests are executed with 'test.globs' as globals which is set in the 'find' method of doctest.DocTestFinder, and cleared after each run (unless 'clear_globs' is false). One possible fix is to have test.regrtest 'find' a new test_runner before each run instead of always using the same one. This is what does the attached patch.

See also issue 20766.

test_statistics also defines a load_tests() function that builds unittest tests from doctests with doctest.DocTestSuite() and also fails in refleak mode. The above regrtest.diff patch also fixes the test_statistics in refleak mode.

This is because breakpoints number are class attributes. With the following change, the "./python -m test test_pdb test_pdb" is ok:
$ hg diff
diff --git a/Lib/test/test_pdb.py b/Lib/test/test_pdb.py
--- a/Lib/test/test_pdb.py
+++ b/Lib/test/test_pdb.py
@@ -614,6 +614,8 @@
 ... test_function_2()
 ... end = 1
 
+ >>> from bdb import Breakpoint; Breakpoint.next = 1
+
 >>> with PdbTestInput(['break test_function_2',
 ... 'continue',
 ... 'return',
Attached refleak_3.patch fixes this problem for test_next_until_return_at_return_event().

Sorry, I posted to the wrong issue, please ignore my previous message.

New changeset df832e0c6d7d by Antoine Pitrou in branch '3.4':
Issue #20746: Fix test_pdb to run in refleak mode (-R). Patch by Xavier de Gaye.
http://hg.python.org/cpython/rev/df832e0c6d7d
New changeset d2041159e8ed by Antoine Pitrou in branch 'default':
Issue #20746: Fix test_pdb to run in refleak mode (-R). Patch by Xavier de Gaye.
http://hg.python.org/cpython/rev/d2041159e8ed 

The regrtest.py part has been fixed independently in #22104 (thank you Zachary). I've now pushed the rest of the patch for test_pdb. Thank you Xavier!