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import sys
import isodate
import datetime
from traceback import print_exc
from nose import SkipTest
from earl import add_test, report
from rdflib import BNode, Graph, ConjunctiveGraph
# TODO: make an introspective version (like this one) of
# rdflib.graphutils.isomorphic and use instead.
def crapCompare(g1, g2):
"""A really crappy way to 'check' if two graphs are equal. It ignores blank
nodes completely and ignores subgraphs."""
if len(g1) != len(g2):
raise Exception("Graphs dont have same length")
for t in g1:
s = _no_blank(t[0])
o = _no_blank(t[2])
if not (s, t[1] ,o) in g2:
e = "(%s, %s, %s) is not in both graphs!"%(s, t[1], o)
raise Exception, e
def _no_blank(node):
if isinstance(node, BNode): return None
if isinstance(node, Graph):
return None #node._Graph__identifier = _SQUASHED_NODE
return node
def check_serialize_parse(fpath, infmt, testfmt, verbose=False):
g = ConjunctiveGraph()
_parse_or_report(verbose, g, fpath, format=infmt)
if verbose:
for t in g:
print t
print "========================================"
print "Parsed OK!"
s = g.serialize(format=testfmt)
if verbose:
print s
g2 = ConjunctiveGraph()
_parse_or_report(verbose, g2, data=s, format=testfmt)
if verbose:
print g2.serialize()
crapCompare(g,g2)
def _parse_or_report(verbose, graph, *args, **kwargs):
try:
graph.parse(*args, **kwargs)
except:
if verbose:
print "========================================"
print "Error in parsing serialization:"
print args, kwargs
raise
def nose_tst_earl_report(generator, earl_report_name=None):
from optparse import OptionParser
p = OptionParser()
(options, args) = p.parse_args()
skip = 0
tests = 0
success = 0
for t in generator(args):
tests += 1
print 'Running ', t[1].uri
try:
t[0](t[1])
add_test(t[1].uri, "passed")
success += 1
except SkipTest, e:
add_test(t[1].uri, "untested", e.message)
print "skipping %s - %s" % (t[1].uri, e.message)
skip += 1
except KeyboardInterrupt:
raise
except AssertionError:
add_test(t[1].uri, "failed")
except:
add_test(t[1].uri, "failed", "error")
print_exc()
sys.stderr.write("%s\n" % t[1].uri)
print "Ran %d tests, %d skipped, %d failed. "%(tests, skip, tests-skip-success)
if earl_report_name:
now = isodate.datetime_isoformat(datetime.datetime.utcnow())
earl_report = 'test_reports/%s-%s.ttl' % (earl_report_name, now)
report.serialize(earl_report, format='n3')
report.serialize('test_reports/%s-latest.ttl'%earl_report_name, format='n3')
print "Wrote EARL-report to '%s'" % earl_report
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