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How to use _validate_entry method in lisa

Best Python code snippet using lisa_python

string.py

Source:string.py

...31            if offset > 0 and data[offset - 1] != 0x00:32                # Ensure non-string data precedes our test data33                data[offset - 1] = 0x0334        cls.data = bytes(data)35    def _validate_entry(self, result, exp_entry):36        exp_off = exp_entry[0]37        exp_addr = self.addr + exp_off38        exp_len = len(exp_entry[1])39        self.assertTrue(isinstance(result, dict))40        self.assertEqual(result['src_off'], exp_off)41        self.assertEqual(result['src_addr'], exp_addr)42        self.assertEqual(result['src_size'], exp_len)43    def test_find(self):44        hunter = StringHunter(self.data, self.addr)45        with self.subTest('Any string @ 0'):46            result = hunter.find(None, min_len=5, max_len=35)47            self._validate_entry(result, self.expected[0])48        with self.subTest('Any string @ 297'):49            result = hunter.find(None, min_len=3, max_len=49, start=297)50            self._validate_entry(result, self.expected[3])51        with self.subTest('Any string @ 332 w/ no bounds'):52            result = hunter.find(None, start=332)53            self._validate_entry(result, self.expected[4])54            result = hunter.find(None, start=332, min_len=-1)55            self._validate_entry(result, self.expected[4])56            result = hunter.find(None, start=332, max_len=-1)57            self._validate_entry(result, self.expected[4])58            result = hunter.find(None, start=332, min_len=-1, max_len=-1)59            self._validate_entry(result, self.expected[4])60        with self.subTest('Any string @ 332 w/ bounds: (min=48, max=100)'):61            result = hunter.find(None, min_len=48, max_len=100, start=332)62            self._validate_entry(result, self.expected[4])63        with self.subTest('Any string @ 332 w/ bounds (min=48, max=48)'):64            result = hunter.find(None, min_len=48, max_len=48, start=332)65            self._validate_entry(result, self.expected[4])66        with self.subTest('Overconstrained - no results'):67            with self.assertRaises(HunterResultNotFound):68                result = hunter.find(None, min_len=49, start=332)69                self._validate_entry(result, self.expected[4])70        with self.subTest('Custom pattern, str'):71            result = hunter.find('[a-zA-Z ]+world!?')72            self._validate_entry(result, self.expected[1])73        with self.subTest('Custom pattern, bytes'):74            result = hunter.find(b'([a-zA-Z ]+world!?|0123456789)')75            self._validate_entry(result, self.expected[1])76            result = hunter.find(b'([a-zA-Z ]+world!?|0123456789)', start=300)77            self._validate_entry(result, self.expected[-1])78        with self.subTest('Start offset=100'):79            hunter = StringHunter(self.data, self.addr, start_offset=100)80            result = hunter.find(None)81            self._validate_entry(result, self.expected[1])82        with self.subTest('Start offset=100, End offset=145'):83            hunter = StringHunter(self.data, self.addr, start_offset=100, end_offset=145)84            result = hunter.find(None)85            self._validate_entry(result, self.expected[1])86            hunter = StringHunter(self.data, self.addr, start_offset=100, end_offset=145)87            result = hunter.find(None, min_len=29, max_len=29)88            self._validate_entry(result, self.expected[1])89        with self.subTest('Start offset=100, End offset=144'):90            with self.assertRaises(HunterResultNotFound):91                hunter = StringHunter(self.data, self.addr, start_offset=100, end_offset=144)92                result = hunter.find(None)93                self._validate_entry(result, self.expected[1])94    def test_string_at(self):95        hunter = StringHunter(self.data, self.addr)96        result = hunter.string_at(self.addr + 501)97        expected = self.expected[-1][1][:-1]   # [Last item], [second field], [:trim null byte]98        self.assertEqual(expected.decode('ascii'), result)99        result = hunter.string_at(self.addr + 501, min_len=10, max_len=11)100        expected = self.expected[-1][1][:-1]   # [Last item], [second field], [:trim null byte]101        self.assertEqual(expected.decode('ascii'), result)102        with self.assertRaises(HunterResultNotFound):103            result = hunter.string_at(self.addr + 502, min_len=11)104    def test_find_iter_no_gaps(self):105        match = [False] * len(self.expected)106        hunter = StringHunter(self.data, self.addr)107        for result in hunter.finditer(None):...

Schema.py

Source:Schema.py

...20            pass21        else:22            schema = {k:None for k in schema}23        return schema24    def _validate_entry(self, obj, k, v, prop_getter, throw=False):25        match = True26        missing = False27        mistyped = False28        try:29            t = prop_getter(k)30        except (KeyError, AttributeError):31            missing = True32            match = False33            t = None34        except (TypeError,):35            mistyped = True36            match = False37            t = None38        else:39            if v is None:40                pass41            elif isinstance(v, (type, tuple)):42                match = isinstance(t, v)43            elif isinstance(v, Schema):44                match = v.validate(t, throw=throw)45            else:46                match = v(t)47        if not match and throw:48            if missing:49                raise KeyError("object {} doesn't match schema {}; key {} is missing".format(50                    obj, self, k51                ))52            elif mistyped:53                raise KeyError("object {} doesn't match schema {}; doesn't support attributes".format(54                    obj, self55                ))56            else:57                raise KeyError("object {} doesn't match schema {}; value {} doesn't match schema type {}".format(58                    obj, self, t, v59                ))60        return (t, match)61    def validate(self, obj, throw=True):62        """63        Validates that `obj` matches the provided schema64        and throws an error if not65        :param obj:66        :type obj:67        :param throw:68        :type throw:69        :return:70        :rtype:71        """72        prop_getter = ( lambda k,obj=obj:getattr(obj, k) ) if not hasattr(obj, '__getitem__') else obj.__getitem__73        for k,v in self.schema.items():74            if not self._validate_entry(obj, k, v, prop_getter, throw=throw)[1]:75                return False76        else:77            return True78    def to_dict(self, obj, throw=True):79        """80        Converts `obj` into a plain `dict` representation81        :param obj:82        :type obj:83        :return:84        :rtype:85        """86        res = {}87        prop_getter = ( lambda k,obj=obj:getattr(obj, k) ) if not hasattr(obj, '__getitem__') else obj.__getitem__88        for k, v in self.schema.items():89            t, m = self._validate_entry(obj, k, v, prop_getter, throw=throw)90            if not m:91                return None92            else:93                res[k] = t94        if self.sub_schema is not None:95            for k, v in self.sub_schema.items():96                t, m = self._validate_entry(obj, k, v, prop_getter, throw=False)97                if m:98                    res[k] = t99        return res100    def __repr__(self):...

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