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github.com_openSUSE_osc/tests/common.py

300 lines
10 KiB
Python

import io
import os
import shutil
import sys
import tempfile
import unittest
from unittest.mock import patch
from urllib.request import HTTPHandler, addinfourl, build_opener
from urllib.parse import urlparse, parse_qs
from xml.etree import ElementTree as ET
import urllib3.response
import osc.conf
import osc.core
def urlcompare(url, *args):
"""compare all components of url except query string - it is converted to
dict, therefor different ordering does not makes url's different, as well
as quoting of a query string"""
components = urlparse(url)
query_args = parse_qs(components.query)
components = components._replace(query=None)
if not args:
return False
for url in args:
components2 = urlparse(url)
query_args2 = parse_qs(components2.query)
components2 = components2._replace(query=None)
if components != components2 or \
query_args != query_args2:
return False
return True
def xml_equal(actual, exp):
try:
actual_xml = ET.fromstring(actual)
exp_xml = ET.fromstring(exp)
except ET.ParseError:
return False
todo = [(actual_xml, exp_xml)]
while todo:
actual_xml, exp_xml = todo.pop(0)
if actual_xml.tag != exp_xml.tag:
return False
if actual_xml.attrib != exp_xml.attrib:
return False
if actual_xml.text != exp_xml.text:
return False
if actual_xml.tail != exp_xml.tail:
return False
if len(actual_xml) != len(exp_xml):
return False
todo.extend(list(zip(actual_xml, exp_xml)))
return True
class RequestWrongOrder(Exception):
"""raised if an unexpected request is issued to urllib2"""
def __init__(self, url, exp_url, method, exp_method):
super().__init__()
self.url = url
self.exp_url = exp_url
self.method = method
self.exp_method = exp_method
def __str__(self):
return '%s, %s, %s, %s' % (self.url, self.exp_url, self.method, self.exp_method)
class RequestDataMismatch(Exception):
"""raised if POSTed or PUTed data doesn't match with the expected data"""
def __init__(self, url, got, exp):
self.url = url
self.got = got
self.exp = exp
def __str__(self):
return '%s, %s, %s' % (self.url, self.got, self.exp)
EXPECTED_REQUESTS = []
# HACK: Fix "ValueError: I/O operation on closed file." error in tests on openSUSE Leap 15.2.
# The problem seems to appear only in the tests, possibly some interaction with MockHTTPConnectionPool.
# Porting 753fbc03 to urllib3 in openSUSE Leap 15.2 would fix the problem.
urllib3.response.HTTPResponse.__iter__ = lambda self: iter(self._fp)
class MockHTTPConnectionPool:
def __init__(self, host, port=None, **conn_kw):
pass
def urlopen(self, method, url, body=None, headers=None, retries=None, **response_kw):
global EXPECTED_REQUESTS
request = EXPECTED_REQUESTS.pop(0)
url = f"http://localhost{url}"
if not urlcompare(request["url"], url) or request["method"] != method:
raise RequestWrongOrder(request["url"], url, request["method"], method)
if method in ("POST", "PUT"):
if 'exp' not in request and 'expfile' in request:
with open(request['expfile'], 'rb') as f:
exp = f.read()
elif 'exp' in request and 'expfile' not in request:
exp = request['exp'].encode('utf-8')
else:
raise RuntimeError('Specify either `exp` or `expfile`')
body = body or b""
if hasattr(body, "read"):
# if it is a file-like object, read it
body = body.read()
if hasattr(body, "encode"):
# if it can be encoded to bytes, do it
body = body.encode("utf-8")
if body != exp:
# We do not have a notion to explicitly mark xml content. In case
# of xml, we do not care about the exact xml representation (for
# now). Hence, if both, data and exp, are xml and are "equal",
# everything is fine (for now); otherwise, error out
# (of course, this is problematic if we want to ensure that XML
# documents are bit identical...)
if not xml_equal(body, exp):
raise RequestDataMismatch(url, repr(body), repr(exp))
if 'exception' in request:
raise request["exception"]
if 'text' not in request and 'file' in request:
with open(request['file'], 'rb') as f:
data = f.read()
elif 'text' in request and 'file' not in request:
data = request['text'].encode('utf-8')
else:
raise RuntimeError('Specify either `text` or `file`')
response = urllib3.response.HTTPResponse(body=data, status=request.get("code", 200))
response._fp = io.BytesIO(data)
return response
def urldecorator(method, url, **kwargs):
def decorate(test_method):
def wrapped_test_method(self):
# put all args into a single dictionary
kwargs["method"] = method
kwargs["url"] = url
# prepend fixtures dir to `file`
if "file" in kwargs:
kwargs["file"] = os.path.join(self._get_fixtures_dir(), kwargs["file"])
# prepend fixtures dir to `expfile`
if "expfile" in kwargs:
kwargs["expfile"] = os.path.join(self._get_fixtures_dir(), kwargs["expfile"])
EXPECTED_REQUESTS.append(kwargs)
test_method(self)
# mock connection pool, but only just once
if not hasattr(test_method, "_MockHTTPConnectionPool"):
wrapped_test_method = patch('urllib3.HTTPConnectionPool', MockHTTPConnectionPool)(wrapped_test_method)
wrapped_test_method._MockHTTPConnectionPool = True
wrapped_test_method.__name__ = test_method.__name__
return wrapped_test_method
return decorate
def GET(path, **kwargs):
return urldecorator('GET', path, **kwargs)
def PUT(path, **kwargs):
return urldecorator('PUT', path, **kwargs)
def POST(path, **kwargs):
return urldecorator('POST', path, **kwargs)
def DELETE(path, **kwargs):
return urldecorator('DELETE', path, **kwargs)
class OscTestCase(unittest.TestCase):
def setUp(self, copytree=True):
global EXPECTED_REQUESTS
EXPECTED_REQUESTS = []
os.chdir(os.path.dirname(__file__))
oscrc = os.path.join(self._get_fixtures_dir(), 'oscrc')
osc.conf.get_config(override_conffile=oscrc, override_no_keyring=True)
os.environ['OSC_CONFIG'] = oscrc
self.tmpdir = tempfile.mkdtemp(prefix='osc_test')
if copytree:
shutil.copytree(os.path.join(self._get_fixtures_dir(), 'osctest'), os.path.join(self.tmpdir, 'osctest'))
self.stdout = sys.stdout
sys.stdout = io.StringIO()
def tearDown(self):
sys.stdout = self.stdout
try:
shutil.rmtree(self.tmpdir)
except:
pass
self.assertTrue(len(EXPECTED_REQUESTS) == 0)
def _get_fixtures_dir(self):
raise NotImplementedError('subclasses should implement this method')
def _get_fixture(self, filename):
path = os.path.join(self._get_fixtures_dir(), filename)
with open(path) as f:
return f.read()
def _change_to_pkg(self, name):
os.chdir(os.path.join(self.tmpdir, 'osctest', name))
def _check_list(self, fname, exp):
fname = os.path.join('.osc', fname)
self.assertFileContentEqual(fname, exp)
def _check_addlist(self, exp):
self._check_list('_to_be_added', exp)
def _check_deletelist(self, exp):
self._check_list('_to_be_deleted', exp)
def _check_conflictlist(self, exp):
self._check_list('_in_conflict', exp)
def _check_status(self, p, fname, exp):
self.assertEqual(p.status(fname), exp)
def _check_digests(self, fname, *skipfiles):
fname = os.path.join(self._get_fixtures_dir(), fname)
with open(os.path.join('.osc', '_files')) as f:
files_act = f.read()
with open(fname) as f:
files_exp = f.read()
self.assertXMLEqual(files_act, files_exp)
root = ET.fromstring(files_act)
for i in root.findall('entry'):
if i.get('name') in skipfiles:
continue
self.assertTrue(os.path.exists(os.path.join('.osc', i.get('name'))))
self.assertEqual(osc.core.dgst(os.path.join('.osc', i.get('name'))), i.get('md5'))
def assertFilesEqual(self, first, second):
self.assertTrue(os.path.exists(first))
self.assertTrue(os.path.exists(second))
with open(first) as f1, open(second) as f2:
self.assertEqual(f1.read(), f2.read())
def assertFileContentEqual(self, file_path, expected_content):
self.assertTrue(os.path.exists(file_path))
with open(file_path) as f:
self.assertEqual(f.read(), expected_content)
def assertFileContentNotEqual(self, file_path, expected_content):
self.assertTrue(os.path.exists(file_path))
with open(file_path) as f:
self.assertNotEqual(f.read(), expected_content)
def assertXMLEqual(self, act, exp):
if xml_equal(act, exp):
return
# ok, xmls are different, hence, assertEqual is expected to fail
# (we just use it in order to get a "nice" error message)
self.assertEqual(act, exp)
# not reached (unless assertEqual is overridden in an incompatible way)
raise RuntimeError('assertEqual assumptions violated')
def assertEqualMultiline(self, got, exp):
if (got + exp).find('\n') == -1:
self.assertEqual(got, exp)
else:
start_delim = "\n" + (" 8< ".join(["-----"] * 8)) + "\n"
end_delim = "\n" + (" >8 ".join(["-----"] * 8)) + "\n\n"
self.assertEqual(got, exp,
"got:" + start_delim + got + end_delim +
"expected:" + start_delim + exp + end_delim)