mirror of
https://github.com/thegeeklab/ansible-later.git
synced 2024-06-26 20:21:01 +02:00
1091 lines
35 KiB
Python
1091 lines
35 KiB
Python
from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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import inspect
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import pprint
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import re
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import sys
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import traceback
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from inspect import CO_VARARGS
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from inspect import CO_VARKEYWORDS
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from weakref import ref
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import attr
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import pluggy
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import py
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import six
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from six import text_type
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import _pytest
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from _pytest._io.saferepr import saferepr
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from _pytest.compat import _PY2
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from _pytest.compat import _PY3
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from _pytest.compat import PY35
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from _pytest.compat import safe_str
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if _PY3:
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from traceback import format_exception_only
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else:
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from ._py2traceback import format_exception_only
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class Code(object):
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""" wrapper around Python code objects """
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def __init__(self, rawcode):
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if not hasattr(rawcode, "co_filename"):
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rawcode = getrawcode(rawcode)
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try:
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self.filename = rawcode.co_filename
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self.firstlineno = rawcode.co_firstlineno - 1
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self.name = rawcode.co_name
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except AttributeError:
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raise TypeError("not a code object: %r" % (rawcode,))
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self.raw = rawcode
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def __eq__(self, other):
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return self.raw == other.raw
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__hash__ = None
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def __ne__(self, other):
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return not self == other
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@property
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def path(self):
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""" return a path object pointing to source code (note that it
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might not point to an actually existing file). """
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try:
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p = py.path.local(self.raw.co_filename)
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# maybe don't try this checking
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if not p.check():
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raise OSError("py.path check failed.")
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except OSError:
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# XXX maybe try harder like the weird logic
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# in the standard lib [linecache.updatecache] does?
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p = self.raw.co_filename
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return p
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@property
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def fullsource(self):
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""" return a _pytest._code.Source object for the full source file of the code
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"""
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from _pytest._code import source
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full, _ = source.findsource(self.raw)
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return full
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def source(self):
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""" return a _pytest._code.Source object for the code object's source only
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"""
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# return source only for that part of code
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import _pytest._code
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return _pytest._code.Source(self.raw)
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def getargs(self, var=False):
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""" return a tuple with the argument names for the code object
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if 'var' is set True also return the names of the variable and
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keyword arguments when present
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"""
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# handfull shortcut for getting args
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raw = self.raw
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argcount = raw.co_argcount
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if var:
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argcount += raw.co_flags & CO_VARARGS
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argcount += raw.co_flags & CO_VARKEYWORDS
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return raw.co_varnames[:argcount]
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class Frame(object):
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"""Wrapper around a Python frame holding f_locals and f_globals
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in which expressions can be evaluated."""
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def __init__(self, frame):
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self.lineno = frame.f_lineno - 1
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self.f_globals = frame.f_globals
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self.f_locals = frame.f_locals
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self.raw = frame
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self.code = Code(frame.f_code)
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@property
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def statement(self):
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""" statement this frame is at """
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import _pytest._code
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if self.code.fullsource is None:
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return _pytest._code.Source("")
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return self.code.fullsource.getstatement(self.lineno)
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def eval(self, code, **vars):
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""" evaluate 'code' in the frame
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'vars' are optional additional local variables
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returns the result of the evaluation
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"""
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f_locals = self.f_locals.copy()
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f_locals.update(vars)
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return eval(code, self.f_globals, f_locals)
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def exec_(self, code, **vars):
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""" exec 'code' in the frame
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'vars' are optiona; additional local variables
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"""
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f_locals = self.f_locals.copy()
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f_locals.update(vars)
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six.exec_(code, self.f_globals, f_locals)
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def repr(self, object):
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""" return a 'safe' (non-recursive, one-line) string repr for 'object'
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"""
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return saferepr(object)
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def is_true(self, object):
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return object
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def getargs(self, var=False):
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""" return a list of tuples (name, value) for all arguments
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if 'var' is set True also include the variable and keyword
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arguments when present
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"""
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retval = []
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for arg in self.code.getargs(var):
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try:
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retval.append((arg, self.f_locals[arg]))
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except KeyError:
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pass # this can occur when using Psyco
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return retval
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class TracebackEntry(object):
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""" a single entry in a traceback """
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_repr_style = None
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exprinfo = None
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def __init__(self, rawentry, excinfo=None):
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self._excinfo = excinfo
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self._rawentry = rawentry
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self.lineno = rawentry.tb_lineno - 1
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def set_repr_style(self, mode):
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assert mode in ("short", "long")
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self._repr_style = mode
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@property
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def frame(self):
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import _pytest._code
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return _pytest._code.Frame(self._rawentry.tb_frame)
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@property
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def relline(self):
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return self.lineno - self.frame.code.firstlineno
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def __repr__(self):
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return "<TracebackEntry %s:%d>" % (self.frame.code.path, self.lineno + 1)
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@property
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def statement(self):
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""" _pytest._code.Source object for the current statement """
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source = self.frame.code.fullsource
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return source.getstatement(self.lineno)
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@property
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def path(self):
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""" path to the source code """
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return self.frame.code.path
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def getlocals(self):
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return self.frame.f_locals
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locals = property(getlocals, None, None, "locals of underlaying frame")
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def getfirstlinesource(self):
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# on Jython this firstlineno can be -1 apparently
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return max(self.frame.code.firstlineno, 0)
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def getsource(self, astcache=None):
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""" return failing source code. """
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# we use the passed in astcache to not reparse asttrees
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# within exception info printing
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from _pytest._code.source import getstatementrange_ast
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source = self.frame.code.fullsource
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if source is None:
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return None
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key = astnode = None
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if astcache is not None:
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key = self.frame.code.path
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if key is not None:
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astnode = astcache.get(key, None)
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start = self.getfirstlinesource()
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try:
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astnode, _, end = getstatementrange_ast(
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self.lineno, source, astnode=astnode
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)
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except SyntaxError:
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end = self.lineno + 1
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else:
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if key is not None:
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astcache[key] = astnode
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return source[start:end]
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source = property(getsource)
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def ishidden(self):
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""" return True if the current frame has a var __tracebackhide__
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resolving to True.
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If __tracebackhide__ is a callable, it gets called with the
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ExceptionInfo instance and can decide whether to hide the traceback.
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mostly for internal use
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"""
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f = self.frame
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tbh = f.f_locals.get(
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"__tracebackhide__", f.f_globals.get("__tracebackhide__", False)
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)
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if tbh and callable(tbh):
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return tbh(None if self._excinfo is None else self._excinfo())
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return tbh
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def __str__(self):
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try:
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fn = str(self.path)
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except py.error.Error:
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fn = "???"
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name = self.frame.code.name
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try:
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line = str(self.statement).lstrip()
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except KeyboardInterrupt:
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raise
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except: # noqa
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line = "???"
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return " File %r:%d in %s\n %s\n" % (fn, self.lineno + 1, name, line)
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def name(self):
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return self.frame.code.raw.co_name
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name = property(name, None, None, "co_name of underlaying code")
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class Traceback(list):
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""" Traceback objects encapsulate and offer higher level
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access to Traceback entries.
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"""
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Entry = TracebackEntry
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def __init__(self, tb, excinfo=None):
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""" initialize from given python traceback object and ExceptionInfo """
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self._excinfo = excinfo
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if hasattr(tb, "tb_next"):
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def f(cur):
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while cur is not None:
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yield self.Entry(cur, excinfo=excinfo)
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cur = cur.tb_next
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list.__init__(self, f(tb))
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else:
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list.__init__(self, tb)
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def cut(self, path=None, lineno=None, firstlineno=None, excludepath=None):
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""" return a Traceback instance wrapping part of this Traceback
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by provding any combination of path, lineno and firstlineno, the
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first frame to start the to-be-returned traceback is determined
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this allows cutting the first part of a Traceback instance e.g.
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for formatting reasons (removing some uninteresting bits that deal
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with handling of the exception/traceback)
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"""
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for x in self:
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code = x.frame.code
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codepath = code.path
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if (
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(path is None or codepath == path)
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and (
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excludepath is None
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or not hasattr(codepath, "relto")
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or not codepath.relto(excludepath)
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)
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and (lineno is None or x.lineno == lineno)
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and (firstlineno is None or x.frame.code.firstlineno == firstlineno)
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):
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return Traceback(x._rawentry, self._excinfo)
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return self
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def __getitem__(self, key):
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val = super(Traceback, self).__getitem__(key)
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if isinstance(key, type(slice(0))):
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val = self.__class__(val)
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return val
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def filter(self, fn=lambda x: not x.ishidden()):
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""" return a Traceback instance with certain items removed
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fn is a function that gets a single argument, a TracebackEntry
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instance, and should return True when the item should be added
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to the Traceback, False when not
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by default this removes all the TracebackEntries which are hidden
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(see ishidden() above)
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"""
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return Traceback(filter(fn, self), self._excinfo)
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def getcrashentry(self):
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""" return last non-hidden traceback entry that lead
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to the exception of a traceback.
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"""
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for i in range(-1, -len(self) - 1, -1):
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entry = self[i]
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if not entry.ishidden():
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return entry
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return self[-1]
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def recursionindex(self):
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""" return the index of the frame/TracebackEntry where recursion
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originates if appropriate, None if no recursion occurred
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"""
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cache = {}
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for i, entry in enumerate(self):
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# id for the code.raw is needed to work around
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# the strange metaprogramming in the decorator lib from pypi
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# which generates code objects that have hash/value equality
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# XXX needs a test
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key = entry.frame.code.path, id(entry.frame.code.raw), entry.lineno
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# print "checking for recursion at", key
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values = cache.setdefault(key, [])
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if values:
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f = entry.frame
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loc = f.f_locals
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for otherloc in values:
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if f.is_true(
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f.eval(
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co_equal,
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__recursioncache_locals_1=loc,
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__recursioncache_locals_2=otherloc,
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)
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):
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return i
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values.append(entry.frame.f_locals)
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return None
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co_equal = compile(
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"__recursioncache_locals_1 == __recursioncache_locals_2", "?", "eval"
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)
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@attr.s(repr=False)
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class ExceptionInfo(object):
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""" wraps sys.exc_info() objects and offers
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help for navigating the traceback.
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"""
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_assert_start_repr = (
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"AssertionError(u'assert " if _PY2 else "AssertionError('assert "
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)
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_excinfo = attr.ib()
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_striptext = attr.ib(default="")
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_traceback = attr.ib(default=None)
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@classmethod
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def from_current(cls, exprinfo=None):
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"""returns an ExceptionInfo matching the current traceback
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.. warning::
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Experimental API
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:param exprinfo: a text string helping to determine if we should
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strip ``AssertionError`` from the output, defaults
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to the exception message/``__str__()``
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"""
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tup = sys.exc_info()
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assert tup[0] is not None, "no current exception"
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_striptext = ""
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if exprinfo is None and isinstance(tup[1], AssertionError):
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exprinfo = getattr(tup[1], "msg", None)
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if exprinfo is None:
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exprinfo = saferepr(tup[1])
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if exprinfo and exprinfo.startswith(cls._assert_start_repr):
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_striptext = "AssertionError: "
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return cls(tup, _striptext)
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@classmethod
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def for_later(cls):
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"""return an unfilled ExceptionInfo
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"""
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return cls(None)
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@property
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def type(self):
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"""the exception class"""
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return self._excinfo[0]
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@property
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def value(self):
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"""the exception value"""
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return self._excinfo[1]
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@property
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def tb(self):
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"""the exception raw traceback"""
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return self._excinfo[2]
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@property
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def typename(self):
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"""the type name of the exception"""
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return self.type.__name__
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@property
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def traceback(self):
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"""the traceback"""
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if self._traceback is None:
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self._traceback = Traceback(self.tb, excinfo=ref(self))
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return self._traceback
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|
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@traceback.setter
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def traceback(self, value):
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self._traceback = value
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|
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def __repr__(self):
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if self._excinfo is None:
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return "<ExceptionInfo for raises contextmanager>"
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return "<ExceptionInfo %s tblen=%d>" % (self.typename, len(self.traceback))
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|
|
def exconly(self, tryshort=False):
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|
""" return the exception as a string
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|
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|
when 'tryshort' resolves to True, and the exception is a
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_pytest._code._AssertionError, only the actual exception part of
|
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the exception representation is returned (so 'AssertionError: ' is
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removed from the beginning)
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"""
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lines = format_exception_only(self.type, self.value)
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text = "".join(lines)
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text = text.rstrip()
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if tryshort:
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if text.startswith(self._striptext):
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text = text[len(self._striptext) :]
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return text
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|
|
|
def errisinstance(self, exc):
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""" return True if the exception is an instance of exc """
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return isinstance(self.value, exc)
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|
|
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def _getreprcrash(self):
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exconly = self.exconly(tryshort=True)
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entry = self.traceback.getcrashentry()
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path, lineno = entry.frame.code.raw.co_filename, entry.lineno
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return ReprFileLocation(path, lineno + 1, exconly)
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|
|
|
def getrepr(
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self,
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showlocals=False,
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style="long",
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abspath=False,
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tbfilter=True,
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funcargs=False,
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truncate_locals=True,
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chain=True,
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):
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"""
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Return str()able representation of this exception info.
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|
|
|
:param bool showlocals:
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Show locals per traceback entry.
|
|
Ignored if ``style=="native"``.
|
|
|
|
:param str style: long|short|no|native traceback style
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|
|
|
:param bool abspath:
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|
If paths should be changed to absolute or left unchanged.
|
|
|
|
:param bool tbfilter:
|
|
Hide entries that contain a local variable ``__tracebackhide__==True``.
|
|
Ignored if ``style=="native"``.
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|
|
|
:param bool funcargs:
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Show fixtures ("funcargs" for legacy purposes) per traceback entry.
|
|
|
|
:param bool truncate_locals:
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|
With ``showlocals==True``, make sure locals can be safely represented as strings.
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|
|
:param bool chain: if chained exceptions in Python 3 should be shown.
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|
|
.. versionchanged:: 3.9
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|
|
Added the ``chain`` parameter.
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"""
|
|
if style == "native":
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return ReprExceptionInfo(
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ReprTracebackNative(
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traceback.format_exception(
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self.type, self.value, self.traceback[0]._rawentry
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)
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),
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self._getreprcrash(),
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)
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|
|
|
fmt = FormattedExcinfo(
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showlocals=showlocals,
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|
style=style,
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|
abspath=abspath,
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|
tbfilter=tbfilter,
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|
funcargs=funcargs,
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|
truncate_locals=truncate_locals,
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chain=chain,
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)
|
|
return fmt.repr_excinfo(self)
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|
|
|
def __str__(self):
|
|
if self._excinfo is None:
|
|
return repr(self)
|
|
entry = self.traceback[-1]
|
|
loc = ReprFileLocation(entry.path, entry.lineno + 1, self.exconly())
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|
return str(loc)
|
|
|
|
def __unicode__(self):
|
|
entry = self.traceback[-1]
|
|
loc = ReprFileLocation(entry.path, entry.lineno + 1, self.exconly())
|
|
return text_type(loc)
|
|
|
|
def match(self, regexp):
|
|
"""
|
|
Match the regular expression 'regexp' on the string representation of
|
|
the exception. If it matches then True is returned (so that it is
|
|
possible to write 'assert excinfo.match()'). If it doesn't match an
|
|
AssertionError is raised.
|
|
"""
|
|
__tracebackhide__ = True
|
|
if not re.search(regexp, str(self.value)):
|
|
assert 0, "Pattern '{!s}' not found in '{!s}'".format(regexp, self.value)
|
|
return True
|
|
|
|
|
|
@attr.s
|
|
class FormattedExcinfo(object):
|
|
""" presenting information about failing Functions and Generators. """
|
|
|
|
# for traceback entries
|
|
flow_marker = ">"
|
|
fail_marker = "E"
|
|
|
|
showlocals = attr.ib(default=False)
|
|
style = attr.ib(default="long")
|
|
abspath = attr.ib(default=True)
|
|
tbfilter = attr.ib(default=True)
|
|
funcargs = attr.ib(default=False)
|
|
truncate_locals = attr.ib(default=True)
|
|
chain = attr.ib(default=True)
|
|
astcache = attr.ib(default=attr.Factory(dict), init=False, repr=False)
|
|
|
|
def _getindent(self, source):
|
|
# figure out indent for given source
|
|
try:
|
|
s = str(source.getstatement(len(source) - 1))
|
|
except KeyboardInterrupt:
|
|
raise
|
|
except: # noqa
|
|
try:
|
|
s = str(source[-1])
|
|
except KeyboardInterrupt:
|
|
raise
|
|
except: # noqa
|
|
return 0
|
|
return 4 + (len(s) - len(s.lstrip()))
|
|
|
|
def _getentrysource(self, entry):
|
|
source = entry.getsource(self.astcache)
|
|
if source is not None:
|
|
source = source.deindent()
|
|
return source
|
|
|
|
def _saferepr(self, obj):
|
|
return saferepr(obj)
|
|
|
|
def repr_args(self, entry):
|
|
if self.funcargs:
|
|
args = []
|
|
for argname, argvalue in entry.frame.getargs(var=True):
|
|
args.append((argname, self._saferepr(argvalue)))
|
|
return ReprFuncArgs(args)
|
|
|
|
def get_source(self, source, line_index=-1, excinfo=None, short=False):
|
|
""" return formatted and marked up source lines. """
|
|
import _pytest._code
|
|
|
|
lines = []
|
|
if source is None or line_index >= len(source.lines):
|
|
source = _pytest._code.Source("???")
|
|
line_index = 0
|
|
if line_index < 0:
|
|
line_index += len(source)
|
|
space_prefix = " "
|
|
if short:
|
|
lines.append(space_prefix + source.lines[line_index].strip())
|
|
else:
|
|
for line in source.lines[:line_index]:
|
|
lines.append(space_prefix + line)
|
|
lines.append(self.flow_marker + " " + source.lines[line_index])
|
|
for line in source.lines[line_index + 1 :]:
|
|
lines.append(space_prefix + line)
|
|
if excinfo is not None:
|
|
indent = 4 if short else self._getindent(source)
|
|
lines.extend(self.get_exconly(excinfo, indent=indent, markall=True))
|
|
return lines
|
|
|
|
def get_exconly(self, excinfo, indent=4, markall=False):
|
|
lines = []
|
|
indent = " " * indent
|
|
# get the real exception information out
|
|
exlines = excinfo.exconly(tryshort=True).split("\n")
|
|
failindent = self.fail_marker + indent[1:]
|
|
for line in exlines:
|
|
lines.append(failindent + line)
|
|
if not markall:
|
|
failindent = indent
|
|
return lines
|
|
|
|
def repr_locals(self, locals):
|
|
if self.showlocals:
|
|
lines = []
|
|
keys = [loc for loc in locals if loc[0] != "@"]
|
|
keys.sort()
|
|
for name in keys:
|
|
value = locals[name]
|
|
if name == "__builtins__":
|
|
lines.append("__builtins__ = <builtins>")
|
|
else:
|
|
# This formatting could all be handled by the
|
|
# _repr() function, which is only reprlib.Repr in
|
|
# disguise, so is very configurable.
|
|
if self.truncate_locals:
|
|
str_repr = self._saferepr(value)
|
|
else:
|
|
str_repr = pprint.pformat(value)
|
|
# if len(str_repr) < 70 or not isinstance(value,
|
|
# (list, tuple, dict)):
|
|
lines.append("%-10s = %s" % (name, str_repr))
|
|
# else:
|
|
# self._line("%-10s =\\" % (name,))
|
|
# # XXX
|
|
# pprint.pprint(value, stream=self.excinfowriter)
|
|
return ReprLocals(lines)
|
|
|
|
def repr_traceback_entry(self, entry, excinfo=None):
|
|
import _pytest._code
|
|
|
|
source = self._getentrysource(entry)
|
|
if source is None:
|
|
source = _pytest._code.Source("???")
|
|
line_index = 0
|
|
else:
|
|
# entry.getfirstlinesource() can be -1, should be 0 on jython
|
|
line_index = entry.lineno - max(entry.getfirstlinesource(), 0)
|
|
|
|
lines = []
|
|
style = entry._repr_style
|
|
if style is None:
|
|
style = self.style
|
|
if style in ("short", "long"):
|
|
short = style == "short"
|
|
reprargs = self.repr_args(entry) if not short else None
|
|
s = self.get_source(source, line_index, excinfo, short=short)
|
|
lines.extend(s)
|
|
if short:
|
|
message = "in %s" % (entry.name)
|
|
else:
|
|
message = excinfo and excinfo.typename or ""
|
|
path = self._makepath(entry.path)
|
|
filelocrepr = ReprFileLocation(path, entry.lineno + 1, message)
|
|
localsrepr = None
|
|
if not short:
|
|
localsrepr = self.repr_locals(entry.locals)
|
|
return ReprEntry(lines, reprargs, localsrepr, filelocrepr, style)
|
|
if excinfo:
|
|
lines.extend(self.get_exconly(excinfo, indent=4))
|
|
return ReprEntry(lines, None, None, None, style)
|
|
|
|
def _makepath(self, path):
|
|
if not self.abspath:
|
|
try:
|
|
np = py.path.local().bestrelpath(path)
|
|
except OSError:
|
|
return path
|
|
if len(np) < len(str(path)):
|
|
path = np
|
|
return path
|
|
|
|
def repr_traceback(self, excinfo):
|
|
traceback = excinfo.traceback
|
|
if self.tbfilter:
|
|
traceback = traceback.filter()
|
|
|
|
if is_recursion_error(excinfo):
|
|
traceback, extraline = self._truncate_recursive_traceback(traceback)
|
|
else:
|
|
extraline = None
|
|
|
|
last = traceback[-1]
|
|
entries = []
|
|
for index, entry in enumerate(traceback):
|
|
einfo = (last == entry) and excinfo or None
|
|
reprentry = self.repr_traceback_entry(entry, einfo)
|
|
entries.append(reprentry)
|
|
return ReprTraceback(entries, extraline, style=self.style)
|
|
|
|
def _truncate_recursive_traceback(self, traceback):
|
|
"""
|
|
Truncate the given recursive traceback trying to find the starting point
|
|
of the recursion.
|
|
|
|
The detection is done by going through each traceback entry and finding the
|
|
point in which the locals of the frame are equal to the locals of a previous frame (see ``recursionindex()``.
|
|
|
|
Handle the situation where the recursion process might raise an exception (for example
|
|
comparing numpy arrays using equality raises a TypeError), in which case we do our best to
|
|
warn the user of the error and show a limited traceback.
|
|
"""
|
|
try:
|
|
recursionindex = traceback.recursionindex()
|
|
except Exception as e:
|
|
max_frames = 10
|
|
extraline = (
|
|
"!!! Recursion error detected, but an error occurred locating the origin of recursion.\n"
|
|
" The following exception happened when comparing locals in the stack frame:\n"
|
|
" {exc_type}: {exc_msg}\n"
|
|
" Displaying first and last {max_frames} stack frames out of {total}."
|
|
).format(
|
|
exc_type=type(e).__name__,
|
|
exc_msg=safe_str(e),
|
|
max_frames=max_frames,
|
|
total=len(traceback),
|
|
)
|
|
traceback = traceback[:max_frames] + traceback[-max_frames:]
|
|
else:
|
|
if recursionindex is not None:
|
|
extraline = "!!! Recursion detected (same locals & position)"
|
|
traceback = traceback[: recursionindex + 1]
|
|
else:
|
|
extraline = None
|
|
|
|
return traceback, extraline
|
|
|
|
def repr_excinfo(self, excinfo):
|
|
if _PY2:
|
|
reprtraceback = self.repr_traceback(excinfo)
|
|
reprcrash = excinfo._getreprcrash()
|
|
|
|
return ReprExceptionInfo(reprtraceback, reprcrash)
|
|
else:
|
|
repr_chain = []
|
|
e = excinfo.value
|
|
descr = None
|
|
seen = set()
|
|
while e is not None and id(e) not in seen:
|
|
seen.add(id(e))
|
|
if excinfo:
|
|
reprtraceback = self.repr_traceback(excinfo)
|
|
reprcrash = excinfo._getreprcrash()
|
|
else:
|
|
# fallback to native repr if the exception doesn't have a traceback:
|
|
# ExceptionInfo objects require a full traceback to work
|
|
reprtraceback = ReprTracebackNative(
|
|
traceback.format_exception(type(e), e, None)
|
|
)
|
|
reprcrash = None
|
|
|
|
repr_chain += [(reprtraceback, reprcrash, descr)]
|
|
if e.__cause__ is not None and self.chain:
|
|
e = e.__cause__
|
|
excinfo = (
|
|
ExceptionInfo((type(e), e, e.__traceback__))
|
|
if e.__traceback__
|
|
else None
|
|
)
|
|
descr = "The above exception was the direct cause of the following exception:"
|
|
elif (
|
|
e.__context__ is not None
|
|
and not e.__suppress_context__
|
|
and self.chain
|
|
):
|
|
e = e.__context__
|
|
excinfo = (
|
|
ExceptionInfo((type(e), e, e.__traceback__))
|
|
if e.__traceback__
|
|
else None
|
|
)
|
|
descr = "During handling of the above exception, another exception occurred:"
|
|
else:
|
|
e = None
|
|
repr_chain.reverse()
|
|
return ExceptionChainRepr(repr_chain)
|
|
|
|
|
|
class TerminalRepr(object):
|
|
def __str__(self):
|
|
s = self.__unicode__()
|
|
if _PY2:
|
|
s = s.encode("utf-8")
|
|
return s
|
|
|
|
def __unicode__(self):
|
|
# FYI this is called from pytest-xdist's serialization of exception
|
|
# information.
|
|
io = py.io.TextIO()
|
|
tw = py.io.TerminalWriter(file=io)
|
|
self.toterminal(tw)
|
|
return io.getvalue().strip()
|
|
|
|
def __repr__(self):
|
|
return "<%s instance at %0x>" % (self.__class__, id(self))
|
|
|
|
|
|
class ExceptionRepr(TerminalRepr):
|
|
def __init__(self):
|
|
self.sections = []
|
|
|
|
def addsection(self, name, content, sep="-"):
|
|
self.sections.append((name, content, sep))
|
|
|
|
def toterminal(self, tw):
|
|
for name, content, sep in self.sections:
|
|
tw.sep(sep, name)
|
|
tw.line(content)
|
|
|
|
|
|
class ExceptionChainRepr(ExceptionRepr):
|
|
def __init__(self, chain):
|
|
super(ExceptionChainRepr, self).__init__()
|
|
self.chain = chain
|
|
# reprcrash and reprtraceback of the outermost (the newest) exception
|
|
# in the chain
|
|
self.reprtraceback = chain[-1][0]
|
|
self.reprcrash = chain[-1][1]
|
|
|
|
def toterminal(self, tw):
|
|
for element in self.chain:
|
|
element[0].toterminal(tw)
|
|
if element[2] is not None:
|
|
tw.line("")
|
|
tw.line(element[2], yellow=True)
|
|
super(ExceptionChainRepr, self).toterminal(tw)
|
|
|
|
|
|
class ReprExceptionInfo(ExceptionRepr):
|
|
def __init__(self, reprtraceback, reprcrash):
|
|
super(ReprExceptionInfo, self).__init__()
|
|
self.reprtraceback = reprtraceback
|
|
self.reprcrash = reprcrash
|
|
|
|
def toterminal(self, tw):
|
|
self.reprtraceback.toterminal(tw)
|
|
super(ReprExceptionInfo, self).toterminal(tw)
|
|
|
|
|
|
class ReprTraceback(TerminalRepr):
|
|
entrysep = "_ "
|
|
|
|
def __init__(self, reprentries, extraline, style):
|
|
self.reprentries = reprentries
|
|
self.extraline = extraline
|
|
self.style = style
|
|
|
|
def toterminal(self, tw):
|
|
# the entries might have different styles
|
|
for i, entry in enumerate(self.reprentries):
|
|
if entry.style == "long":
|
|
tw.line("")
|
|
entry.toterminal(tw)
|
|
if i < len(self.reprentries) - 1:
|
|
next_entry = self.reprentries[i + 1]
|
|
if (
|
|
entry.style == "long"
|
|
or entry.style == "short"
|
|
and next_entry.style == "long"
|
|
):
|
|
tw.sep(self.entrysep)
|
|
|
|
if self.extraline:
|
|
tw.line(self.extraline)
|
|
|
|
|
|
class ReprTracebackNative(ReprTraceback):
|
|
def __init__(self, tblines):
|
|
self.style = "native"
|
|
self.reprentries = [ReprEntryNative(tblines)]
|
|
self.extraline = None
|
|
|
|
|
|
class ReprEntryNative(TerminalRepr):
|
|
style = "native"
|
|
|
|
def __init__(self, tblines):
|
|
self.lines = tblines
|
|
|
|
def toterminal(self, tw):
|
|
tw.write("".join(self.lines))
|
|
|
|
|
|
class ReprEntry(TerminalRepr):
|
|
def __init__(self, lines, reprfuncargs, reprlocals, filelocrepr, style):
|
|
self.lines = lines
|
|
self.reprfuncargs = reprfuncargs
|
|
self.reprlocals = reprlocals
|
|
self.reprfileloc = filelocrepr
|
|
self.style = style
|
|
|
|
def toterminal(self, tw):
|
|
if self.style == "short":
|
|
self.reprfileloc.toterminal(tw)
|
|
for line in self.lines:
|
|
red = line.startswith("E ")
|
|
tw.line(line, bold=True, red=red)
|
|
# tw.line("")
|
|
return
|
|
if self.reprfuncargs:
|
|
self.reprfuncargs.toterminal(tw)
|
|
for line in self.lines:
|
|
red = line.startswith("E ")
|
|
tw.line(line, bold=True, red=red)
|
|
if self.reprlocals:
|
|
tw.line("")
|
|
self.reprlocals.toterminal(tw)
|
|
if self.reprfileloc:
|
|
if self.lines:
|
|
tw.line("")
|
|
self.reprfileloc.toterminal(tw)
|
|
|
|
def __str__(self):
|
|
return "%s\n%s\n%s" % ("\n".join(self.lines), self.reprlocals, self.reprfileloc)
|
|
|
|
|
|
class ReprFileLocation(TerminalRepr):
|
|
def __init__(self, path, lineno, message):
|
|
self.path = str(path)
|
|
self.lineno = lineno
|
|
self.message = message
|
|
|
|
def toterminal(self, tw):
|
|
# filename and lineno output for each entry,
|
|
# using an output format that most editors unterstand
|
|
msg = self.message
|
|
i = msg.find("\n")
|
|
if i != -1:
|
|
msg = msg[:i]
|
|
tw.write(self.path, bold=True, red=True)
|
|
tw.line(":%s: %s" % (self.lineno, msg))
|
|
|
|
|
|
class ReprLocals(TerminalRepr):
|
|
def __init__(self, lines):
|
|
self.lines = lines
|
|
|
|
def toterminal(self, tw):
|
|
for line in self.lines:
|
|
tw.line(line)
|
|
|
|
|
|
class ReprFuncArgs(TerminalRepr):
|
|
def __init__(self, args):
|
|
self.args = args
|
|
|
|
def toterminal(self, tw):
|
|
if self.args:
|
|
linesofar = ""
|
|
for name, value in self.args:
|
|
ns = "%s = %s" % (safe_str(name), safe_str(value))
|
|
if len(ns) + len(linesofar) + 2 > tw.fullwidth:
|
|
if linesofar:
|
|
tw.line(linesofar)
|
|
linesofar = ns
|
|
else:
|
|
if linesofar:
|
|
linesofar += ", " + ns
|
|
else:
|
|
linesofar = ns
|
|
if linesofar:
|
|
tw.line(linesofar)
|
|
tw.line("")
|
|
|
|
|
|
def getrawcode(obj, trycall=True):
|
|
""" return code object for given function. """
|
|
try:
|
|
return obj.__code__
|
|
except AttributeError:
|
|
obj = getattr(obj, "im_func", obj)
|
|
obj = getattr(obj, "func_code", obj)
|
|
obj = getattr(obj, "f_code", obj)
|
|
obj = getattr(obj, "__code__", obj)
|
|
if trycall and not hasattr(obj, "co_firstlineno"):
|
|
if hasattr(obj, "__call__") and not inspect.isclass(obj):
|
|
x = getrawcode(obj.__call__, trycall=False)
|
|
if hasattr(x, "co_firstlineno"):
|
|
return x
|
|
return obj
|
|
|
|
|
|
if PY35: # RecursionError introduced in 3.5
|
|
|
|
def is_recursion_error(excinfo):
|
|
return excinfo.errisinstance(RecursionError) # noqa
|
|
|
|
|
|
else:
|
|
|
|
def is_recursion_error(excinfo):
|
|
if not excinfo.errisinstance(RuntimeError):
|
|
return False
|
|
try:
|
|
return "maximum recursion depth exceeded" in str(excinfo.value)
|
|
except UnicodeError:
|
|
return False
|
|
|
|
|
|
# relative paths that we use to filter traceback entries from appearing to the user;
|
|
# see filter_traceback
|
|
# note: if we need to add more paths than what we have now we should probably use a list
|
|
# for better maintenance
|
|
|
|
_PLUGGY_DIR = py.path.local(pluggy.__file__.rstrip("oc"))
|
|
# pluggy is either a package or a single module depending on the version
|
|
if _PLUGGY_DIR.basename == "__init__.py":
|
|
_PLUGGY_DIR = _PLUGGY_DIR.dirpath()
|
|
_PYTEST_DIR = py.path.local(_pytest.__file__).dirpath()
|
|
_PY_DIR = py.path.local(py.__file__).dirpath()
|
|
|
|
|
|
def filter_traceback(entry):
|
|
"""Return True if a TracebackEntry instance should be removed from tracebacks:
|
|
* dynamically generated code (no code to show up for it);
|
|
* internal traceback from pytest or its internal libraries, py and pluggy.
|
|
"""
|
|
# entry.path might sometimes return a str object when the entry
|
|
# points to dynamically generated code
|
|
# see https://bitbucket.org/pytest-dev/py/issues/71
|
|
raw_filename = entry.frame.code.raw.co_filename
|
|
is_generated = "<" in raw_filename and ">" in raw_filename
|
|
if is_generated:
|
|
return False
|
|
# entry.path might point to a non-existing file, in which case it will
|
|
# also return a str object. see #1133
|
|
p = py.path.local(entry.path)
|
|
return (
|
|
not p.relto(_PLUGGY_DIR) and not p.relto(_PYTEST_DIR) and not p.relto(_PY_DIR)
|
|
)
|