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# -*- coding: utf-8 -*- 
 
from __future__ import print_function, absolute_import, division 
 
import os 
import re 
 
import pytest 
 
import yatest.common as yc 
 
 
def clean_traceback(traceback): 
    traceback = re.sub(br'\033\[(\d|;)+?m', b'', traceback)  # strip ANSI codes 
    traceback = re.sub(br' at 0x[0-9a-fA-F]+', b'', traceback)  # remove object ids 
    return traceback 
 
 
@pytest.mark.parametrize('mode', [ 
    'default', 
    'ultratb_color', 
    'ultratb_verbose', 
]) 
@pytest.mark.parametrize('entry_point', [ 
    'main', 
    'custom', 
]) 
def test_traceback(mode, entry_point): 
    tb_tool = yc.build_path('library/python/runtime_py3/test/traceback/traceback') 
    stdout_path = yc.test_output_path('stdout_raw.txt') 
    stderr_path = yc.test_output_path('stderr_raw.txt') 
    filtered_stdout_path = yc.test_output_path('stdout.txt') 
    filtered_stderr_path = yc.test_output_path('stderr.txt') 
 
    env = os.environ.copy() 
    env.pop('PYTHONPATH', None)  # Do not let program peek into its sources on filesystem
    if entry_point == 'custom': 
        env['Y_PYTHON_ENTRY_POINT'] = 'library.python.runtime_py3.test.traceback.crash:main' 
 
    proc = yc.execute( 
        command=[tb_tool, mode], 
        env=env, 
        stdout=stdout_path, 
        stderr=stderr_path, 
        check_exit_code=False, 
    ) 
 
    with open(filtered_stdout_path, 'wb') as f: 
        f.write(clean_traceback(proc.std_out)) 
 
    with open(filtered_stderr_path, 'wb') as f: 
        f.write(clean_traceback(proc.std_err)) 
 
    return { 
        'stdout': yc.canonical_file( 
            filtered_stdout_path, 
            local=True, 
        ), 
        'stderr': yc.canonical_file( 
            filtered_stderr_path, 
            local=True, 
        ), 
    }