How to use received method in localstack

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assertsql.py

Source:assertsql.py

1# testing/assertsql.py2# Copyright (C) 2005-2020 the SQLAlchemy authors and contributors3# <see AUTHORS file>4#5# This module is part of SQLAlchemy and is released under6# the MIT License: http://www.opensource.org/licenses/mit-license.php7import collections8import contextlib9import re10from .. import event11from .. import util12from ..engine import url13from ..engine.default import DefaultDialect14from ..engine.util import _distill_params15from ..schema import _DDLCompiles16class AssertRule(object):17    is_consumed = False18    errormessage = None19    consume_statement = True20    def process_statement(self, execute_observed):21        pass22    def no_more_statements(self):23        assert False, (24            "All statements are complete, but pending "25            "assertion rules remain"26        )27class SQLMatchRule(AssertRule):28    pass29class CursorSQL(SQLMatchRule):30    consume_statement = False31    def __init__(self, statement, params=None):32        self.statement = statement33        self.params = params34    def process_statement(self, execute_observed):35        stmt = execute_observed.statements[0]36        if self.statement != stmt.statement or (37            self.params is not None and self.params != stmt.parameters38        ):39            self.errormessage = (40                "Testing for exact SQL %s parameters %s received %s %s"41                % (42                    self.statement,43                    self.params,44                    stmt.statement,45                    stmt.parameters,46                )47            )48        else:49            execute_observed.statements.pop(0)50            self.is_consumed = True51            if not execute_observed.statements:52                self.consume_statement = True53class CompiledSQL(SQLMatchRule):54    def __init__(self, statement, params=None, dialect="default"):55        self.statement = statement56        self.params = params57        self.dialect = dialect58    def _compare_sql(self, execute_observed, received_statement):59        stmt = re.sub(r"[\n\t]", "", self.statement)60        return received_statement == stmt61    def _compile_dialect(self, execute_observed):62        if self.dialect == "default":63            return DefaultDialect()64        else:65            # ugh66            if self.dialect == "postgresql":67                params = {"implicit_returning": True}68            else:69                params = {}70            return url.URL(self.dialect).get_dialect()(**params)71    def _received_statement(self, execute_observed):72        """reconstruct the statement and params in terms73        of a target dialect, which for CompiledSQL is just DefaultDialect."""74        context = execute_observed.context75        compare_dialect = self._compile_dialect(execute_observed)76        if isinstance(context.compiled.statement, _DDLCompiles):77            compiled = context.compiled.statement.compile(78                dialect=compare_dialect,79                schema_translate_map=context.execution_options.get(80                    "schema_translate_map"81                ),82            )83        else:84            compiled = context.compiled.statement.compile(85                dialect=compare_dialect,86                column_keys=context.compiled.column_keys,87                inline=context.compiled.inline,88                schema_translate_map=context.execution_options.get(89                    "schema_translate_map"90                ),91            )92        _received_statement = re.sub(r"[\n\t]", "", util.text_type(compiled))93        parameters = execute_observed.parameters94        if not parameters:95            _received_parameters = [compiled.construct_params()]96        else:97            _received_parameters = [98                compiled.construct_params(m) for m in parameters99            ]100        return _received_statement, _received_parameters101    def process_statement(self, execute_observed):102        context = execute_observed.context103        _received_statement, _received_parameters = self._received_statement(104            execute_observed105        )106        params = self._all_params(context)107        equivalent = self._compare_sql(execute_observed, _received_statement)108        if equivalent:109            if params is not None:110                all_params = list(params)111                all_received = list(_received_parameters)112                while all_params and all_received:113                    param = dict(all_params.pop(0))114                    for idx, received in enumerate(list(all_received)):115                        # do a positive compare only116                        for param_key in param:117                            # a key in param did not match current118                            # 'received'119                            if (120                                param_key not in received121                                or received[param_key] != param[param_key]122                            ):123                                break124                        else:125                            # all keys in param matched 'received';126                            # onto next param127                            del all_received[idx]128                            break129                    else:130                        # param did not match any entry131                        # in all_received132                        equivalent = False133                        break134                if all_params or all_received:135                    equivalent = False136        if equivalent:137            self.is_consumed = True138            self.errormessage = None139        else:140            self.errormessage = self._failure_message(params) % {141                "received_statement": _received_statement,142                "received_parameters": _received_parameters,143            }144    def _all_params(self, context):145        if self.params:146            if util.callable(self.params):147                params = self.params(context)148            else:149                params = self.params150            if not isinstance(params, list):151                params = [params]152            return params153        else:154            return None155    def _failure_message(self, expected_params):156        return (157            "Testing for compiled statement %r partial params %s, "158            "received %%(received_statement)r with params "159            "%%(received_parameters)r"160            % (161                self.statement.replace("%", "%%"),162                repr(expected_params).replace("%", "%%"),163            )164        )165class RegexSQL(CompiledSQL):166    def __init__(self, regex, params=None):167        SQLMatchRule.__init__(self)168        self.regex = re.compile(regex)169        self.orig_regex = regex170        self.params = params171        self.dialect = "default"172    def _failure_message(self, expected_params):173        return (174            "Testing for compiled statement ~%r partial params %s, "175            "received %%(received_statement)r with params "176            "%%(received_parameters)r"177            % (178                self.orig_regex.replace("%", "%%"),179                repr(expected_params).replace("%", "%%"),180            )181        )182    def _compare_sql(self, execute_observed, received_statement):183        return bool(self.regex.match(received_statement))184class DialectSQL(CompiledSQL):185    def _compile_dialect(self, execute_observed):186        return execute_observed.context.dialect187    def _compare_no_space(self, real_stmt, received_stmt):188        stmt = re.sub(r"[\n\t]", "", real_stmt)189        return received_stmt == stmt190    def _received_statement(self, execute_observed):191        received_stmt, received_params = super(192            DialectSQL, self193        )._received_statement(execute_observed)194        # TODO: why do we need this part?195        for real_stmt in execute_observed.statements:196            if self._compare_no_space(real_stmt.statement, received_stmt):197                break198        else:199            raise AssertionError(200                "Can't locate compiled statement %r in list of "201                "statements actually invoked" % received_stmt202            )203        return received_stmt, execute_observed.context.compiled_parameters204    def _compare_sql(self, execute_observed, received_statement):205        stmt = re.sub(r"[\n\t]", "", self.statement)206        # convert our comparison statement to have the207        # paramstyle of the received208        paramstyle = execute_observed.context.dialect.paramstyle209        if paramstyle == "pyformat":210            stmt = re.sub(r":([\w_]+)", r"%(\1)s", stmt)211        else:212            # positional params213            repl = None214            if paramstyle == "qmark":215                repl = "?"216            elif paramstyle == "format":217                repl = r"%s"218            elif paramstyle == "numeric":219                repl = None220            stmt = re.sub(r":([\w_]+)", repl, stmt)221        return received_statement == stmt222class CountStatements(AssertRule):223    def __init__(self, count):224        self.count = count225        self._statement_count = 0226    def process_statement(self, execute_observed):227        self._statement_count += 1228    def no_more_statements(self):229        if self.count != self._statement_count:230            assert False, "desired statement count %d does not match %d" % (231                self.count,232                self._statement_count,233            )234class AllOf(AssertRule):235    def __init__(self, *rules):236        self.rules = set(rules)237    def process_statement(self, execute_observed):238        for rule in list(self.rules):239            rule.errormessage = None240            rule.process_statement(execute_observed)241            if rule.is_consumed:242                self.rules.discard(rule)243                if not self.rules:244                    self.is_consumed = True245                break246            elif not rule.errormessage:247                # rule is not done yet248                self.errormessage = None249                break250        else:251            self.errormessage = list(self.rules)[0].errormessage252class EachOf(AssertRule):253    def __init__(self, *rules):254        self.rules = list(rules)255    def process_statement(self, execute_observed):256        while self.rules:257            rule = self.rules[0]258            rule.process_statement(execute_observed)259            if rule.is_consumed:260                self.rules.pop(0)261            elif rule.errormessage:262                self.errormessage = rule.errormessage263            if rule.consume_statement:264                break265        if not self.rules:266            self.is_consumed = True267    def no_more_statements(self):268        if self.rules and not self.rules[0].is_consumed:269            self.rules[0].no_more_statements()270        elif self.rules:271            super(EachOf, self).no_more_statements()272class Or(AllOf):273    def process_statement(self, execute_observed):274        for rule in self.rules:275            rule.process_statement(execute_observed)276            if rule.is_consumed:277                self.is_consumed = True278                break279        else:280            self.errormessage = list(self.rules)[0].errormessage281class SQLExecuteObserved(object):282    def __init__(self, context, clauseelement, multiparams, params):283        self.context = context284        self.clauseelement = clauseelement285        self.parameters = _distill_params(multiparams, params)286        self.statements = []287class SQLCursorExecuteObserved(288    collections.namedtuple(289        "SQLCursorExecuteObserved",290        ["statement", "parameters", "context", "executemany"],291    )292):293    pass294class SQLAsserter(object):295    def __init__(self):296        self.accumulated = []297    def _close(self):298        self._final = self.accumulated299        del self.accumulated300    def assert_(self, *rules):301        rule = EachOf(*rules)302        observed = list(self._final)303        while observed:304            statement = observed.pop(0)305            rule.process_statement(statement)306            if rule.is_consumed:307                break308            elif rule.errormessage:309                assert False, rule.errormessage310        if observed:311            assert False, "Additional SQL statements remain"312        elif not rule.is_consumed:313            rule.no_more_statements()314@contextlib.contextmanager315def assert_engine(engine):316    asserter = SQLAsserter()317    orig = []318    @event.listens_for(engine, "before_execute")319    def connection_execute(conn, clauseelement, multiparams, params):320        # grab the original statement + params before any cursor321        # execution322        orig[:] = clauseelement, multiparams, params323    @event.listens_for(engine, "after_cursor_execute")324    def cursor_execute(325        conn, cursor, statement, parameters, context, executemany326    ):327        if not context:328            return329        # then grab real cursor statements and associate them all330        # around a single context331        if (332            asserter.accumulated333            and asserter.accumulated[-1].context is context334        ):335            obs = asserter.accumulated[-1]336        else:337            obs = SQLExecuteObserved(context, orig[0], orig[1], orig[2])338            asserter.accumulated.append(obs)339        obs.statements.append(340            SQLCursorExecuteObserved(341                statement, parameters, context, executemany342            )343        )344    try:345        yield asserter346    finally:347        event.remove(engine, "after_cursor_execute", cursor_execute)348        event.remove(engine, "before_execute", connection_execute)...

switch_impl_test.py

Source:switch_impl_test.py

1#!/usr/bin/env python2import unittest3import sys4import os.path5from copy import copy6sys.path.append(os.path.dirname(__file__) + "/../../..")7from pox.openflow.libopenflow_01 import *8from pox.openflow.switch_impl import *9class MockConnection(object):10  def __init__(self):11    self.ofp_handlers = {}12    self.received = []13  @property14  def last(self):15    return self.received[-1]16  def to_switch(self, msg):17    self.ofp_handlers[msg.header_type](msg)18  # from switch19  def send(self, msg):20    self.received.append(msg)21class SwitchImplTest(unittest.TestCase):22  def setUp(self):23    self.conn = MockConnection()24    self.switch = SwitchImpl(1, name="sw1")25    self.switch.set_connection(self.conn)26    self.packet = ethernet(src=EthAddr("00:00:00:00:00:01"), dst=EthAddr("00:00:00:00:00:02"),27            payload=ipv4(srcip=IPAddr("1.2.3.4"), dstip=IPAddr("1.2.3.5"),28                payload=udp(srcport=1234, dstport=53, payload="haha")))29  def test_hello(self):30    c = self.conn31    c.to_switch(ofp_hello(xid=123))32    self.assertEqual(len(c.received), 1)33    self.assertTrue(isinstance(c.last, ofp_hello),34          "should have received hello but got %s" % c.last)35  def test_echo_request(self):36    c = self.conn37    c.to_switch(ofp_echo_request(xid=123))38    self.assertEqual(len(c.received), 1)39    self.assertTrue(isinstance(c.last, ofp_echo_reply) and c.last.xid == 123,40          "should have received echo reply but got %s" % c.last)41  def test_barrier(self):42    c = self.conn43    c.to_switch(ofp_barrier_request(xid=123))44    self.assertEqual(len(c.received), 1)45    self.assertTrue(isinstance(c.last, ofp_barrier_reply) and c.last.xid == 123,46          "should have received echo reply but got %s" % c.last)47  def test_flow_mod(self):48    c = self.conn49    s = self.switch50    c.to_switch(ofp_flow_mod(xid=124, priority=1, match=ofp_match(in_port=1, nw_src="1.2.3.4")))51    self.assertEqual(len(c.received), 0)52    self.assertEqual(len(s.table), 1)53    e = s.table.entries[0]54    self.assertEqual(e.priority,1)55    self.assertEqual(e.match, ofp_match(in_port=1, nw_src="1.2.3.4"))56  def test_packet_out(self):57    c = self.conn58    s = self.switch59    received = []60    s.addListener(DpPacketOut, lambda(event): received.append(event))61    packet = self.packet62    c.to_switch(ofp_packet_out(data=packet, actions=[ofp_action_output(port=2)]))63    self.assertEqual(len(c.received), 0)64    self.assertEqual(len(received), 1)65    event = received[0]66    self.assertEqual(event.port.port_no,2)67    self.assertEqual(event.packet.pack(), packet.pack())68  def test_send_packet_in(self):69    c = self.conn70    s = self.switch71    s.send_packet_in(in_port=1, buffer_id=123, packet=self.packet, xid=314, reason=OFPR_NO_MATCH)72    self.assertEqual(len(c.received), 1)73    self.assertTrue(isinstance(c.last, ofp_packet_in) and c.last.xid == 314,74          "should have received packet_in but got %s" % c.last)75    self.assertEqual(c.last.in_port,1)76    self.assertEqual(c.last.buffer_id,123)77    self.assertEqual(c.last.data, self.packet.pack())78  def test_process_packet(self):79    c = self.conn80    s = self.switch81    received = []82    s.addListener(DpPacketOut, lambda(event): received.append(event))83    # no flow entries -> should result in a packet_in84    s.process_packet(self.packet, in_port=1)85    self.assertEqual(len(c.received), 1)86    self.assertTrue(isinstance(c.last, ofp_packet_in),87          "should have received packet_in but got %s" % c.last)88    self.assertTrue(c.last.buffer_id > 0)89    # let's send a flow_mod with a buffer id90    c.to_switch(ofp_flow_mod(xid=124, buffer_id=c.last.buffer_id, priority=1,91                             match=ofp_match(in_port=1, nw_src="1.2.3.4"),92                             actions = [ ofp_action_output(port=3) ]93                             ))94    # that should have send the packet out port 395    self.assertEqual(len(received), 1)96    event = received[0]97    self.assertEqual(event.port.port_no,3)98    self.assertEqual(event.packet, self.packet)99    # now the next packet should go through on the fast path100    c.received = []101    received = []102    s.process_packet(self.packet, in_port=1)103    self.assertEqual(len(c.received), 0)104    self.assertEqual(len(received), 1)105    event = received[0]106    self.assertEqual(event.port.port_no,3)107    self.assertEqual(event.packet, self.packet)108    109  def test_take_port_down(self):110    c = self.conn111    s = self.switch112    original_num_ports = len(self.switch.ports)113    p = self.switch.ports.values()[0]114    s.take_port_down(p)115    new_num_ports = len(self.switch.ports)116    self.assertTrue(new_num_ports == original_num_ports - 1, "Should have removed the port")117    self.assertEqual(len(c.received), 1)118    self.assertTrue(isinstance(c.last, ofp_port_status),119          "should have received port_status but got %s" % c.last)120    self.assertTrue(c.last.reason == OFPPR_DELETE)121  122  def test_bring_port_up(self):123    c = self.conn124    s = self.switch125    original_num_ports = len(self.switch.ports)126    p = ofp_phy_port(port_no=1234)127    s.bring_port_up(p)128    new_num_ports = len(self.switch.ports)129    self.assertTrue(new_num_ports == original_num_ports + 1, "Should have added the port")130    self.assertEqual(len(c.received), 1)131    self.assertTrue(isinstance(c.last, ofp_port_status),132          "should have received port_status but got %s" % c.last)133    self.assertTrue(c.last.reason == OFPPR_ADD)134if __name__ == '__main__':...

update.py

Source:update.py

1from sqlalchemy.orm.exc import (NoResultFound, MultipleResultsFound)2from app.modules.quiz.models import Quiz3import itertools4class Singleton(type):5    def __init__(cls,name, bases, dict):6        super(Singleton, cls).__init__(name, bases, dict)7        cls.instance = None8    def __call__(cls, *args, **kwargs):9        if cls.instance is None:10            cls.instance = super(Singleton, cls).__call__(*args, **kwargs)11        else:12            cls._instances[cls].__init__(*args, **kwargs)13        return cls.instance14class Update(object):15    __metaclass__ = Singleton16    def __init__(self, session):17        self.__session = session18    def update_quiz(self, quiz_received, quiz_code):19        # type: (object) -> object20        try:21            quiz_found = self.__session.query(Quiz).filter_by(code=quiz_code).one()22            quiz_found.name = quiz_received.name23            quiz_found.description = quiz_received.description24            quiz_found.max_score = quiz_received.max_score25            new_max_score_per_question = quiz_found.max_score / quiz_found.question_count26            questions_received = quiz_received.questions27            questions_found = quiz_found.questions28            questions_iterator = [questions_received, questions_found]29            for question_received, question_found in itertools.product(*questions_iterator):30                if question_received.code == question_found.code:31                    question_found.text = question_received.text32                    question_found.max_score = new_max_score_per_question33                    question_found.score = 0.034                    options_received = question_received.options35                    options_found = question_found.options36                    options_iterator = [options_received, options_found]37                    for option_received, option_found in itertools.product(*options_iterator):38                        if option_received.code == option_found.code:39                            option_found.text = option_received.text40                            option_found.is_correct = option_received.is_correct41                            option_found.is_selected = option_received.is_selected42            return quiz_found43        except NoResultFound:44            print "Quiz of code {} not found.".format(quiz_code)45            return "-"46    def answer_quiz(self, quiz_received, quiz_code):47        try:48            quiz_found = self.__session.query(Quiz).filter_by(code=quiz_code).one()49            questions_received = quiz_received.questions50            questions_found = quiz_found.questions51            questions_iterator = [questions_received, questions_found]52            for question_received, question_found in itertools.product(*questions_iterator):53                if question_received.code == question_found.code:54                    options_received = question_received.options55                    options_found = question_found.options56                    options_iterator = [options_received, options_found]57                    for option_received, option_found in itertools.product(*options_iterator):58                        if option_received.code == option_found.code:59                            option_found.is_selected = option_received.is_selected60            return quiz_found61        except NoResultFound:62            print "Quiz of code {} not found.".format(quiz_code)63            return "-"64    def grade_quiz(self, quiz_code):65        try:66            quiz = self.__session.query(Quiz).filter_by(code=quiz_code).one()67            total_score = 0.068            questions = quiz.questions69            for question in questions:70                options = question.options71                for option in options:72                    if option.is_selected and option.is_correct:73                        question.score = question.max_score74                total_score = total_score + question.score75            quiz.score = total_score76            return quiz77        except NoResultFound:78            print "Quiz of code {} not found.".format(quiz_code)...

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