allure-python/allure-python-commons/src/utils.py at master · ric79/allure-python · GitHub

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# -*- coding: utf-8 -*-

import os

import sys

import six

import time

import uuid

import socket

import inspect

import hashlib

import platform

import threading

import traceback

if sys.version_info.major > 2:

from traceback import format_exception_only

else:

from _compat import format_exception_only

def md5(*args):

m = hashlib.md5()

for arg in args:

part = arg.encode('utf-8')

m.update(part)

return m.hexdigest()

def uuid4():

return str(uuid.uuid4())

def now():

return int(round(1000 * time.time()))

def platform_label():

major_version, _, __ = platform.python_version_tuple()

implementation = platform.python_implementation()

return '{implementation}{major_version}'.format(implementation=implementation.lower(),

major_version=major_version)

def thread_tag():

return '{0}-{1}'.format(os.getpid(), threading.current_thread().name)

def host_tag():

return socket.gethostname()

def represent(item):

"""

>>> represent(None)

'None'

>>> represent(123)

'123'

>>> from sys import version_info

>>> expected = u"'hi'" if version_info.major < 3 else "'hi'"

>>> represent('hi') == expected

True

>>> from sys import version_info

>>> expected = u"'привет'" if version_info.major < 3 else "'привет'"

>>> represent(u'привет') == expected

True

>>> represent(bytearray([0xd0, 0xbf])) # doctest: +ELLIPSIS

"<... 'bytearray'>"

>>> from struct import pack

>>> result = "<type 'str'>" if version_info.major < 3 else "<class 'bytes'>"

>>> represent(pack('h', 0x89)) == result

True

>>> result = "<type 'int'>" if version_info.major < 3 else "<class 'int'>"

>>> represent(int) == result

True

>>> represent(represent) # doctest: +ELLIPSIS

'<function represent at ...>'

>>> represent([represent]) # doctest: +ELLIPSIS

'[<function represent at ...>]'

>>> class ClassWithName(object):

... pass

>>> represent(ClassWithName)

"<class 'utils.ClassWithName'>"

"""

if sys.version_info.major < 3 and isinstance(item, str):

try:

item = item.decode(encoding='UTF-8')

except UnicodeDecodeError:

pass

if isinstance(item, six.text_type):

return u'\'%s\'' % item

elif isinstance(item, (bytes, bytearray)):

return repr(type(item))

else:

return repr(item)

def func_parameters(func, *args, **kwargs):

"""

>>> def helper(func):

... def wrapper(*args, **kwargs):

... params = func_parameters(func, *args, **kwargs)

... print(sorted(params.items()))

... return func(*args, **kwargs)

... return wrapper

>>> @helper

... def args(a, b):

... pass

>>> args(1, 2)

[('a', '1'), ('b', '2')]

>>> args(*(1,2))

[('a', '1'), ('b', '2')]

>>> args(1, b=2)

[('a', '1'), ('b', '2')]

>>> @helper

... def kwargs(a=1, b=2):

... pass

>>> kwargs()

[('a', '1'), ('b', '2')]

>>> kwargs(a=3, b=4)

[('a', '3'), ('b', '4')]

>>> kwargs(b=4, a=3)

[('a', '3'), ('b', '4')]

>>> kwargs(a=3)

[('a', '3'), ('b', '2')]

>>> kwargs(b=4)

[('a', '1'), ('b', '4')]

>>> @helper

... def args_kwargs(a, b, c=3, d=4):

... pass

>>> args_kwargs(1, 2)

[('a', '1'), ('b', '2'), ('c', '3'), ('d', '4')]

>>> args_kwargs(1, 2, d=5)

[('a', '1'), ('b', '2'), ('c', '3'), ('d', '5')]

>>> args_kwargs(1, 2, 5, 6)

[('a', '1'), ('b', '2'), ('c', '5'), ('d', '6')]

>>> @helper

... def varargs(*a):

... pass

>>> varargs()

[]

>>> varargs(1, 2)

[('a', '(1, 2)')]

>>> @helper

... def keywords(**a):

... pass

>>> keywords()

[]

>>> keywords(a=1, b=2)

[('a', '1'), ('b', '2')]

>>> @helper

... def args_varargs(a, b, *c):

... pass

>>> args_varargs(1, 2)

[('a', '1'), ('b', '2')]

>>> args_varargs(1, 2, 2)

[('a', '1'), ('b', '2'), ('c', '(2,)')]

>>> @helper

... def args_kwargs_varargs(a, b, c=3, **d):

... pass

>>> args_kwargs_varargs(1, 2)

[('a', '1'), ('b', '2'), ('c', '3')]

>>> args_kwargs_varargs(1, 2, 4, d=5, e=6)

[('a', '1'), ('b', '2'), ('c', '4'), ('d', '5'), ('e', '6')]

>>> @helper

... def args_kwargs_varargs_keywords(a, b=2, *c, **d):

... pass

>>> args_kwargs_varargs_keywords(1)

[('a', '1'), ('b', '2')]

>>> args_kwargs_varargs_keywords(1, 2, 4, d=5, e=6)

[('a', '1'), ('b', '2'), ('c', '(4,)'), ('d', '5'), ('e', '6')]

>>> class Class(object):

... @staticmethod

... @helper

... def static_args(a, b):

... pass

...

... @classmethod

... @helper

... def method_args(cls, a, b):

... pass

...

... @helper

... def args(self, a, b):

... pass

>>> cls = Class()

>>> cls.args(1, 2)

[('a', '1'), ('b', '2')]

>>> cls.method_args(1, 2)

[('a', '1'), ('b', '2')]

>>> cls.static_args(1, 2)

[('a', '1'), ('b', '2')]

"""

parameters = {}

arg_spec = inspect.getargspec(func) if sys.version_info.major < 3 else inspect.getfullargspec(func)

args_dict = dict(zip(arg_spec.args, args))

if arg_spec.defaults:

kwargs_defaults_dict = dict(zip(arg_spec.args[len(args):], arg_spec.defaults))

parameters.update(kwargs_defaults_dict)

if arg_spec.varargs:

varargs = args[len(arg_spec.args):]

parameters.update({arg_spec.varargs: varargs} if varargs else {})

if arg_spec.args and arg_spec.args[0] in ['cls', 'self']:

args_dict.pop(arg_spec.args[0], None)

parameters.update(kwargs)

parameters.update(args_dict)

items = parameters.iteritems() if sys.version_info.major < 3 else parameters.items()

return dict(map(lambda kv: (kv[0], represent(kv[1])), items))

def format_traceback(exc_traceback):

return ''.join(traceback.format_tb(exc_traceback)) if exc_traceback else None

def format_exception(etype, value):

"""

>>> import sys

>>> try:

... assert False, u'Привет'

... except AssertionError:

... etype, e, _ = sys.exc_info()

... format_exception(etype, e) # doctest: +ELLIPSIS

'AssertionError: ...\\n'

>>> try:

... assert False, 'Привет'

... except AssertionError:

... etype, e, _ = sys.exc_info()

... format_exception(etype, e) # doctest: +ELLIPSIS

'AssertionError: ...\\n'

>>> try:

... compile("bla u'Привет'", "fake.py", "exec")

... except SyntaxError:

... etype, e, _ = sys.exc_info()

... format_exception(etype, e) # doctest: +ELLIPSIS

' File "fake.py", line 1...SyntaxError: invalid syntax\\n'

>>> try:

... compile("bla 'Привет'", "fake.py", "exec")

... except SyntaxError:

... etype, e, _ = sys.exc_info()

... format_exception(etype, e) # doctest: +ELLIPSIS

' File "fake.py", line 1...SyntaxError: invalid syntax\\n'

>>> from hamcrest import assert_that, equal_to

>>> try:

... assert_that('left', equal_to('right'))

... except AssertionError:

... etype, e, _ = sys.exc_info()

... format_exception(etype, e) # doctest: +ELLIPSIS

"AssertionError: \\nExpected:...but:..."

>>> try:

... assert_that(u'left', equal_to(u'right'))

... except AssertionError:

... etype, e, _ = sys.exc_info()

... format_exception(etype, e) # doctest: +ELLIPSIS

"AssertionError: \\nExpected:...but:..."

"""

return '\n'.join(format_exception_only(etype, value)) if etype or value else None

allure-python/allure-python-commons/src/utils.py at master · ric79/allure-python · GitHub

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