boltons/tests/test_tbutils_parsed_exc.py

82 lines
3.2 KiB
Python

from boltons.tbutils import ParsedException
def test_parsed_exc_basic():
_tb_str = """\
Traceback (most recent call last):
File "example.py", line 2, in <module>
plarp
NameError: name 'plarp' is not defined"""
parsed_tb = ParsedException.from_string(_tb_str)
print(parsed_tb)
assert parsed_tb.exc_type == 'NameError'
assert parsed_tb.exc_msg == "name 'plarp' is not defined"
assert parsed_tb.frames == [{'source_line': 'plarp',
'filepath': 'example.py',
'lineno': '2',
'funcname': '<module>'}]
assert parsed_tb.to_string() == _tb_str
def test_parsed_exc_nosrcline():
"""just making sure that everything can be parsed even if there is
a line without source and also if the exception has no message"""
_tb_str = """\
Traceback (most recent call last):
File "/home/mahmoud/virtualenvs/chert/bin/chert", line 9, in <module>
load_entry_point('chert==0.2.1.dev0', 'console_scripts', 'chert')()
File "/home/mahmoud/projects/chert/chert/core.py", line 1281, in main
ch.process()
File "/home/mahmoud/projects/chert/chert/core.py", line 741, in process
self.load()
File "<boltons.FunctionBuilder-0>", line 2, in load
File "/home/mahmoud/projects/lithoxyl/lithoxyl/logger.py", line 291, in logged_func
return func_to_log(*a, **kw)
File "/home/mahmoud/projects/chert/chert/core.py", line 775, in load
raise RuntimeError
RuntimeError"""
parsed_tb = ParsedException.from_string(_tb_str)
assert parsed_tb.exc_type == 'RuntimeError'
assert parsed_tb.exc_msg == ''
assert len(parsed_tb.frames) == 6
assert parsed_tb.frames[3] == {'source_line': '',
'filepath': '<boltons.FunctionBuilder-0>',
'lineno': '2',
'funcname': 'load'}
assert parsed_tb.to_string() == _tb_str
def test_parsed_exc_with_anchor():
"""parse a traceback with anchor lines beneath source lines"""
_tb_str = """\
Traceback (most recent call last):
File "main.py", line 3, in <module>
print(add(1, "two"))
^^^^^^^^^^^^^
File "add.py", line 2, in add
return a + b
~~^~~
TypeError: unsupported operand type(s) for +: 'int' and 'str'"""
parsed_tb = ParsedException.from_string(_tb_str)
assert parsed_tb.exc_type == 'TypeError'
assert parsed_tb.exc_msg == "unsupported operand type(s) for +: 'int' and 'str'"
assert parsed_tb.frames == [{'source_line': 'print(add(1, "two"))',
'filepath': 'main.py',
'lineno': '3',
'funcname': '<module>'},
{'source_line': 'return a + b',
'filepath': 'add.py',
'lineno': '2',
'funcname': 'add'}]
# Note: not checking the anchor lines (indices 3, 6) because column details not currently stored in ParsedException
_tb_str_lines = _tb_str.splitlines()
_tb_str_without_anchor = "\n".join(_tb_str_lines[:3] + _tb_str_lines[4:6] + _tb_str_lines[7:])
assert parsed_tb.to_string() == _tb_str_without_anchor