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""" Python representations of the JSON Schema Test Suite tests. """ from functools import partial import json import os import re import subprocess import sys import unittest from twisted.python.filepath import FilePath import attr from jsonschema.compat import PY3 from jsonschema.validators import validators import jsonschema def _find_suite(): root = os.environ.get("JSON_SCHEMA_TEST_SUITE") if root is not None: return FilePath(root) root = FilePath(jsonschema.__file__).parent().sibling("json") if not root.isdir(): # pragma: no cover raise ValueError( ( "Can't find the JSON-Schema-Test-Suite directory. " "Set the 'JSON_SCHEMA_TEST_SUITE' environment " "variable or run the tests from alongside a checkout " "of the suite." ), ) return root @attr.s(hash=True) class Suite(object): _root = attr.ib(default=attr.Factory(_find_suite)) def _remotes(self): jsonschema_suite = self._root.descendant(["bin", "jsonschema_suite"]) remotes = subprocess.check_output( [sys.executable, jsonschema_suite.path, "remotes"], ) return { "http://localhost:1234/" + name: schema for name, schema in json.loads(remotes.decode("utf-8")).items() } def benchmark(self, runner): # pragma: no cover for name in validators: self.version(name=name).benchmark(runner=runner) def version(self, name): return Version( name=name, path=self._root.descendant(["tests", name]), remotes=self._remotes(), ) @attr.s(hash=True) class Version(object): _path = attr.ib() _remotes = attr.ib() name = attr.ib() def benchmark(self, runner, **kwargs): # pragma: no cover for suite in self.tests(): for test in suite: runner.bench_func( test.fully_qualified_name, partial(test.validate_ignoring_errors, **kwargs), ) def tests(self): return ( test for child in self._path.globChildren("*.json") for test in self._tests_in( subject=child.basename()[:-5], path=child, ) ) def format_tests(self): path = self._path.descendant(["optional", "format"]) return ( test for child in path.globChildren("*.json") for test in self._tests_in( subject=child.basename()[:-5], path=child, ) ) def tests_of(self, name): return self._tests_in( subject=name, path=self._path.child(name + ".json"), ) def optional_tests_of(self, name): return self._tests_in( subject=name, path=self._path.descendant(["optional", name + ".json"]), ) def to_unittest_testcase(self, *suites, **kwargs): name = kwargs.pop("name", "Test" + self.name.title()) methods = { test.method_name: test.to_unittest_method(**kwargs) for suite in suites for tests in suite for test in tests } cls = type(name, (unittest.TestCase,), methods) try: cls.__module__ = _someone_save_us_the_module_of_the_caller() except Exception: # pragma: no cover # We're doing crazy things, so if they go wrong, like a function # behaving differently on some other interpreter, just make them # not happen. pass return cls def _tests_in(self, subject, path): for each in json.loads(path.getContent().decode("utf-8")): yield ( _Test( version=self, subject=subject, case_description=each["description"], schema=each["schema"], remotes=self._remotes, **test ) for test in each["tests"] ) @attr.s(hash=True, repr=False) class _Test(object): version = attr.ib() subject = attr.ib() case_description = attr.ib() description = attr.ib() data = attr.ib() schema = attr.ib(repr=False) valid = attr.ib() _remotes = attr.ib() def __repr__(self): # pragma: no cover return "<Test {}>".format(self.fully_qualified_name) @property def fully_qualified_name(self): # pragma: no cover return " > ".join( [ self.version.name, self.subject, self.case_description, self.description, ] ) @property def method_name(self): delimiters = r"[\W\- ]+" name = "test_%s_%s_%s" % ( re.sub(delimiters, "_", self.subject), re.sub(delimiters, "_", self.case_description), re.sub(delimiters, "_", self.description), ) if not PY3: # pragma: no cover name = name.encode("utf-8") return name def to_unittest_method(self, skip=lambda test: None, **kwargs): if self.valid: def fn(this): self.validate(**kwargs) else: def fn(this): with this.assertRaises(jsonschema.ValidationError): self.validate(**kwargs) fn.__name__ = self.method_name reason = skip(self) return unittest.skipIf(reason is not None, reason)(fn) def validate(self, Validator, **kwargs): resolver = jsonschema.RefResolver.from_schema( schema=self.schema, store=self._remotes, id_of=Validator.ID_OF, ) jsonschema.validate( instance=self.data, schema=self.schema, cls=Validator, resolver=resolver, **kwargs ) def validate_ignoring_errors(self, Validator): # pragma: no cover try: self.validate(Validator=Validator) except jsonschema.ValidationError: pass def _someone_save_us_the_module_of_the_caller(): """ The FQON of the module 2nd stack frames up from here. This is intended to allow us to dynamicallly return test case classes that are indistinguishable from being defined in the module that wants them. Otherwise, trial will mis-print the FQON, and copy pasting it won't re-run the class that really is running. Save us all, this is all so so so so so terrible. """ return sys._getframe(2).f_globals["__name__"]
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