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How to use _get_cursor method in avocado

Best Python code snippet using avocado_python
test_cext_cursor.py
Source:test_cext_cursor.py
...47)48LOGGER = logging.getLogger(tests.LOGGER_NAME)49@unittest.skipIf(HAVE_CMYSQL == False, "C Extension not available")50class CExtMySQLCursorTests(tests.CMySQLCursorTests):51    def _get_cursor(self, cnx=None):52        if not cnx:53            cnx = CMySQLConnection(**self.config)54        return CMySQLCursor(connection=cnx)55    def test___init__(self):56        self.assertRaises(errors.InterfaceError, CMySQLCursor, connection='ham')57        cur = self._get_cursor(self.cnx)58        self.assertTrue(hex(id(self.cnx)).upper()[2:-1]59                        in repr(cur._cnx).upper())60    def test_lastrowid(self):61        cur = self._get_cursor(self.cnx)62        tbl = 'test_lastrowid'63        self.setup_table(self.cnx, tbl)64        cur.execute("INSERT INTO {0} (col1) VALUES (1)".format(tbl))65        self.assertEqual(1, cur.lastrowid)66        cur.execute("INSERT INTO {0} () VALUES ()".format(tbl))67        self.assertEqual(2, cur.lastrowid)68        cur.execute("INSERT INTO {0} () VALUES (),()".format(tbl))69        self.assertEqual(3, cur.lastrowid)70        cur.execute("INSERT INTO {0} () VALUES ()".format(tbl))71        self.assertEqual(5, cur.lastrowid)72    def test__fetch_warnings(self):73        self.cnx.get_warnings = True74        cur = self._get_cursor(self.cnx)75        cur._cnx = None76        self.assertRaises(errors.InterfaceError, cur._fetch_warnings)77        cur = self._get_cursor(self.cnx)78        cur.execute("SELECT 'a' + 'b'")79        cur.fetchall()80        exp = [81            ('Warning', 1292, "Truncated incorrect DOUBLE value: 'a'"),82            ('Warning', 1292, "Truncated incorrect DOUBLE value: 'b'")83        ]84        res = cur._fetch_warnings()85        self.assertTrue(tests.cmp_result(exp, res))86        self.assertEqual(len(exp), cur._warning_count)87    def test_execute(self):88        self.cnx.get_warnings = True89        cur = self._get_cursor(self.cnx)90        self.assertEqual(None, cur.execute(None))91        self.assertRaises(errors.ProgrammingError, cur.execute,92                          'SELECT %s,%s,%s', ('foo', 'bar',))93        cur.execute("SELECT 'a' + 'b'")94        cur.fetchall()95        exp = [96            ('Warning', 1292, "Truncated incorrect DOUBLE value: 'a'"),97            ('Warning', 1292, "Truncated incorrect DOUBLE value: 'b'")98        ]99        self.assertTrue(tests.cmp_result(exp, cur._warnings))100        self.cnx.get_warnings = False101        cur.execute("SELECT BINARY 'ham'")102        exp = [('ham',)]103        self.assertEqual(exp, cur.fetchall())104        cur.close()105        tbl = 'myconnpy_cursor'106        self.setup_table(self.cnx, tbl)107        cur = self._get_cursor(self.cnx)108        stmt_insert = "INSERT INTO {0} (col1,col2) VALUES (%s,%s)".format(tbl)109        res = cur.execute(stmt_insert, (1, 100))110        self.assertEqual(None, res, "Return value of execute() is wrong.")111        stmt_select = "SELECT col1,col2 FROM {0} ORDER BY col1".format(tbl)112        cur.execute(stmt_select)113        self.assertEqual([(1, '100')],114                         cur.fetchall(), "Insert test failed")115        data = {'id': 2}116        stmt = "SELECT col1,col2 FROM {0} WHERE col1 <= %(id)s".format(tbl)117        cur.execute(stmt, data)118        self.assertEqual([(1, '100')], cur.fetchall())119        cur.close()120    def test_executemany__errors(self):121        self.cnx.get_warnings = True122        cur = self._get_cursor(self.cnx)123        self.assertEqual(None, cur.executemany(None, []))124        cur = self._get_cursor(self.cnx)125        self.assertRaises(errors.ProgrammingError, cur.executemany,126                          'programming error with string', 'foo')127        self.assertRaises(errors.ProgrammingError, cur.executemany,128                          'programming error with 1 element list', ['foo'])129        self.assertEqual(None, cur.executemany('empty params', []))130        self.assertEqual(None, cur.executemany('params is None', None))131        self.assertRaises(errors.ProgrammingError, cur.executemany,132                          'foo', ['foo'])133        self.assertRaises(errors.ProgrammingError, cur.executemany,134                          'SELECT %s', [('foo',), 'foo'])135        self.assertRaises(errors.ProgrammingError,136                          cur.executemany,137                          "INSERT INTO t1 1 %s", [(1,), (2,)])138        cur.executemany("SELECT SHA1(%s)", [('foo',), ('bar',)])139        self.assertEqual(None, cur.fetchone())140    def test_executemany(self):141        tbl = 'myconnpy_cursor'142        self.setup_table(self.cnx, tbl)143        144        stmt_insert = "INSERT INTO {0} (col1,col2) VALUES (%s,%s)".format(tbl)145        stmt_select = "SELECT col1,col2 FROM {0} ORDER BY col1".format(tbl)146        cur = self._get_cursor(self.cnx)147        res = cur.executemany(stmt_insert, [(1, 100), (2, 200), (3, 300)])148        self.assertEqual(3, cur.rowcount)149        res = cur.executemany("SELECT %s", [('f',), ('o',), ('o',)])150        self.assertEqual(3, cur.rowcount)151        data = [{'id': 2}, {'id': 3}]152        stmt = "SELECT * FROM {0} WHERE col1 <= %(id)s".format(tbl)153        cur.executemany(stmt, data)154        self.assertEqual(5, cur.rowcount)155        cur.execute(stmt_select)156        self.assertEqual([(1, '100'), (2, '200'), (3, '300')],157                         cur.fetchall(), "Multi insert test failed")158        data = [{'id': 2}, {'id': 3}]159        stmt = "DELETE FROM {0} WHERE col1 = %(id)s".format(tbl)160        cur.executemany(stmt, data)161        self.assertEqual(2, cur.rowcount)162        stmt = "TRUNCATE TABLE {0}".format(tbl)163        cur.execute(stmt)164        stmt = (165            "/*comment*/INSERT/*comment*/INTO/*comment*/{0}(col1,col2)VALUES"166            "/*comment*/(%s,%s/*comment*/)/*comment()*/ON DUPLICATE KEY UPDATE"167            " col1 = VALUES(col1)"168        ).format(tbl)169        cur.executemany(stmt, [(4, 100), (5, 200), (6, 300)])170        self.assertEqual(3, cur.rowcount)171        cur.execute(stmt_select)172        self.assertEqual([(4, '100'), (5, '200'), (6, '300')],173                         cur.fetchall(), "Multi insert test failed")174        stmt = "TRUNCATE TABLE {0}".format(tbl)175        cur.execute(stmt)176        stmt = (177            "INSERT INTO/*comment*/{0}(col1,col2)VALUES"178            "/*comment*/(%s,'/*100*/')/*comment()*/ON DUPLICATE KEY UPDATE "179            "col1 = VALUES(col1)"180        ).format(tbl)181        cur.executemany(stmt, [(4,), (5,)])182        self.assertEqual(2, cur.rowcount)183        cur.execute(stmt_select)184        self.assertEqual([(4, '/*100*/'), (5, '/*100*/')],185                         cur.fetchall(), "Multi insert test failed")186        cur.close()187    def _test_callproc_setup(self, cnx):188        self._test_callproc_cleanup(cnx)189        stmt_create1 = (190            "CREATE PROCEDURE myconnpy_sp_1 "191            "(IN pFac1 INT, IN pFac2 INT, OUT pProd INT) "192            "BEGIN SET pProd := pFac1 * pFac2; END;")193        stmt_create2 = (194            "CREATE PROCEDURE myconnpy_sp_2 "195            "(IN pFac1 INT, IN pFac2 INT, OUT pProd INT) "196            "BEGIN SELECT 'abc'; SELECT 'def'; SET pProd := pFac1 * pFac2; "197            "END;")198        stmt_create3 = (199            "CREATE PROCEDURE myconnpy_sp_3"200            "(IN pStr1 VARCHAR(20), IN pStr2 VARCHAR(20), "201            "OUT pConCat VARCHAR(100)) "202            "BEGIN SET pConCat := CONCAT(pStr1, pStr2); END;")203        stmt_create4 = (204            "CREATE PROCEDURE myconnpy_sp_4"205            "(IN pStr1 VARCHAR(20), INOUT pStr2 VARCHAR(20), "206            "OUT pConCat VARCHAR(100)) "207            "BEGIN SET pConCat := CONCAT(pStr1, pStr2); END;")208        try:209            cur = cnx.cursor()210            cur.execute(stmt_create1)211            cur.execute(stmt_create2)212            cur.execute(stmt_create3)213            cur.execute(stmt_create4)214        except errors.Error as err:215            self.fail("Failed setting up test stored routine; {0}".format(err))216        cur.close()217    def _test_callproc_cleanup(self, cnx):218        sp_names = ('myconnpy_sp_1', 'myconnpy_sp_2', 'myconnpy_sp_3',219                    'myconnpy_sp_4')220        stmt_drop = "DROP PROCEDURE IF EXISTS {procname}"221        try:222            cur = cnx.cursor()223            for sp_name in sp_names:224                cur.execute(stmt_drop.format(procname=sp_name))225        except errors.Error as err:226            self.fail(227                "Failed cleaning up test stored routine; {0}".format(err))228        cur.close()229    def test_callproc(self):230        cur = self._get_cursor(self.cnx)231        self.check_method(cur, 'callproc')232        self.assertRaises(ValueError, cur.callproc, None)233        self.assertRaises(ValueError, cur.callproc, 'sp1', None)234        config = tests.get_mysql_config()235        self.cnx.get_warnings = True236        self._test_callproc_setup(self.cnx)237        cur = self.cnx.cursor()238        if tests.MYSQL_VERSION < (5, 1):239            exp = ('5', '4', b'20')240        else:241            exp = (5, 4, 20)242        result = cur.callproc('myconnpy_sp_1', (exp[0], exp[1], 0))243        self.assertEqual(exp, result)244        if tests.MYSQL_VERSION < (5, 1):245            exp = ('6', '5', b'30')246        else:247            exp = (6, 5, 30)248        result = cur.callproc('myconnpy_sp_2', (exp[0], exp[1], 0))249        self.assertTrue(isinstance(cur._stored_results, list))250        self.assertEqual(exp, result)251        exp_results = [252            ('abc',),253            ('def',)254        ]255        for i, result in enumerate(cur.stored_results()):256            self.assertEqual(exp_results[i], result.fetchone())257        exp = ('ham', 'spam', 'hamspam')258        result = cur.callproc('myconnpy_sp_3', (exp[0], exp[1], 0))259        self.assertTrue(isinstance(cur._stored_results, list))260        self.assertEqual(exp, result)261        exp = ('ham', 'spam', 'hamspam')262        result = cur.callproc('myconnpy_sp_4',263                              (exp[0], (exp[1], 'CHAR'), (0, 'CHAR')))264        self.assertTrue(isinstance(cur._stored_results, list))265        self.assertEqual(exp, result)266        cur.close()267        self._test_callproc_cleanup(self.cnx)268    def test_fetchone(self):269        cur = self._get_cursor(self.cnx)270        self.assertEqual(None, cur.fetchone())271        cur = self.cnx.cursor()272        cur.execute("SELECT BINARY 'ham'")273        exp = ('ham',)274        self.assertEqual(exp, cur.fetchone())275        self.assertEqual(None, cur.fetchone())276        cur.close()277    def test_fetchmany(self):278        """MySQLCursor object fetchmany()-method"""279        cur = self._get_cursor(self.cnx)280        self.assertEqual([], cur.fetchmany())281        tbl = 'myconnpy_fetch'282        self.setup_table(self.cnx, tbl)283        stmt_insert = (284            "INSERT INTO {table} (col1,col2) "285            "VALUES (%s,%s)".format(table=tbl))286        stmt_select = (287            "SELECT col1,col2 FROM {table} "288            "ORDER BY col1 DESC".format(table=tbl))289        cur = self.cnx.cursor()290        nrrows = 10291        data = [(i, str(i * 100)) for i in range(1, nrrows+1)]292        cur.executemany(stmt_insert, data)293        cur.execute(stmt_select)294        exp = [(10, '1000'), (9, '900'), (8, '800'), (7, '700')]295        rows = cur.fetchmany(4)296        self.assertTrue(tests.cmp_result(exp, rows),297                        "Fetching first 4 rows test failed.")298        exp = [(6, '600'), (5, '500'), (4, '400')]299        rows = cur.fetchmany(3)300        self.assertTrue(tests.cmp_result(exp, rows),301                        "Fetching next 3 rows test failed.")302        exp = [(3, '300'), (2, '200'), (1, '100')]303        rows = cur.fetchmany(3)304        self.assertTrue(tests.cmp_result(exp, rows),305                        "Fetching next 3 rows test failed.")306        self.assertEqual([], cur.fetchmany())307        # Fetch more than we have.308        cur.execute(stmt_select)309        rows = cur.fetchmany(100)310        exp = [(10, '1000'), (9, '900'), (8, '800'), (7, '700'),311               (6, '600'), (5, '500'), (4, '400'),312               (3, '300'), (2, '200'), (1, '100')]313        self.assertTrue(tests.cmp_result(exp, rows),314                        "Fetching next 3 rows test failed.")315        cur.close()316    def test_fetchall(self):317        cur = self._get_cursor(self.cnx)318        self.assertRaises(errors.InterfaceError, cur.fetchall)319        tbl = 'myconnpy_fetch'320        self.setup_table(self.cnx, tbl)321        stmt_insert = (322            "INSERT INTO {table} (col1,col2) "323            "VALUES (%s,%s)".format(table=tbl))324        stmt_select = (325            "SELECT col1,col2 FROM {table} "326            "ORDER BY col1 ASC".format(table=tbl))327        cur = self.cnx.cursor()328        cur.execute("SELECT * FROM {table}".format(table=tbl))329        self.assertEqual([], cur.fetchall(),330                         "fetchall() with empty result should return []")331        nrrows = 10332        data = [(i, str(i * 100)) for i in range(1, nrrows+1)]333        cur.executemany(stmt_insert, data)334        cur.execute(stmt_select)335        self.assertTrue(tests.cmp_result(data, cur.fetchall()),336                        "Fetching all rows failed.")337        self.assertEqual(None, cur.fetchone())338        cur.close()339    def test_raise_on_warning(self):340        self.cnx.raise_on_warnings = True341        cur = self._get_cursor(self.cnx)342        cur.execute("SELECT 'a' + 'b'")343        try:344            cur.execute("SELECT 'a' + 'b'")345            cur.fetchall()346        except errors.DatabaseError:347            pass348        else:349            self.fail("Did not get exception while raising warnings.")350    def test__str__(self):351        cur = self._get_cursor(self.cnx)352        self.assertEqual("CMySQLCursor: (Nothing executed yet)",353                         cur.__str__())354        355        cur.execute("SELECT VERSION()")356        cur.fetchone()357        self.assertEqual("CMySQLCursor: SELECT VERSION()",358                         cur.__str__())359        stmt = "SELECT VERSION(),USER(),CURRENT_TIME(),NOW(),SHA1('myconnpy')"360        cur.execute(stmt)361        cur.fetchone()362        self.assertEqual("CMySQLCursor: {0}..".format(stmt[:40]),363                         cur.__str__())364        cur.close()365    def test_column_names(self):366        cur = self._get_cursor(self.cnx)367        stmt = "SELECT NOW() as now, 'The time' as label, 123 FROM dual"368        exp = ('now', 'label', '123')369        cur.execute(stmt)370        cur.fetchone()371        self.assertEqual(exp, cur.column_names)372        cur.close()373    def test_statement(self):374        cur = CMySQLCursor(self.cnx)375        exp = 'SELECT * FROM ham'376        cur._executed = exp377        self.assertEqual(exp, cur.statement)378        cur._executed = '  ' + exp + '    '379        self.assertEqual(exp, cur.statement)380        cur._executed = b'SELECT * FROM ham'381        self.assertEqual(exp, cur.statement)382    def test_with_rows(self):383        cur = CMySQLCursor(self.cnx)384        self.assertFalse(cur.with_rows)385        cur._description = ('ham', 'spam')386        self.assertTrue(cur.with_rows)387    def tests_nextset(self):388        cur = CMySQLCursor(self.cnx)389        stmt = "SELECT 'result', 1; SELECT 'result', 2; SELECT 'result', 3"390        cur.execute(stmt)391        self.assertEqual([('result', 1)], cur.fetchall())392        self.assertTrue(cur.nextset())393        self.assertEqual([('result', 2)], cur.fetchall())394        self.assertTrue(cur.nextset())395        self.assertEqual([('result', 3)], cur.fetchall())396        self.assertEqual(None, cur.nextset())397        tbl = 'myconnpy_nextset'398        stmt = "SELECT 'result', 1; INSERT INTO {0} () VALUES (); " \399               "SELECT * FROM {0}".format(tbl)400        self.setup_table(self.cnx, tbl)401        cur.execute(stmt)402        self.assertEqual([('result', 1)], cur.fetchall())403        try:404            cur.nextset()405        except errors.Error as exc:406            self.assertEqual(errorcode.CR_NO_RESULT_SET, exc.errno)407            self.assertEqual(1, cur._affected_rows)408        self.assertTrue(cur.nextset())409        self.assertEqual([(1, None, 0)], cur.fetchall())410        self.assertEqual(None, cur.nextset())411        cur.close()412        self.cnx.rollback()413    def tests_execute_multi(self):414        tbl = 'myconnpy_execute_multi'415        stmt = "SELECT 'result', 1; INSERT INTO {0} () VALUES (); " \416               "SELECT * FROM {0}".format(tbl)417        self.setup_table(self.cnx, tbl)418        multi_cur = CMySQLCursor(self.cnx)419        results = []420        exp = [421            (u"SELECT 'result', 1", [(u'result', 1)]),422            (u"INSERT INTO {0} () VALUES ()".format(tbl), 1, 1),423            (u"SELECT * FROM {0}".format(tbl), [(1, None, 0)]),424        ]425        for cur in multi_cur.execute(stmt, multi=True):426            if cur.with_rows:427                results.append((cur.statement, cur.fetchall()))428            else:429                results.append(430                    (cur.statement, cur._affected_rows, cur.lastrowid)431                )432        self.assertEqual(exp, results)433        cur.close()434        self.cnx.rollback()435        cur = self._get_cursor(self.cnx)436        cur.execute("DROP PROCEDURE IF EXISTS multi_results")437        procedure = (438            "CREATE PROCEDURE multi_results () "439            "BEGIN SELECT 1; SELECT 'ham'; END"440        )441        cur.execute(procedure)442        stmt = "CALL multi_results()"443        if not PY2:444            stmt = b"CALL multi_results()"445        exp_result = [[(1,)], [(u'ham',)]]446        results = []447        for result in cur.execute(stmt, multi=True):448            if result.with_rows:449                self.assertEqual(stmt, result._executed)450                results.append(result.fetchall())451        self.assertEqual(exp_result, results)452        cur.execute("DROP PROCEDURE multi_results")453        cur.close()454class CExtMySQLCursorBufferedTests(tests.CMySQLCursorTests):455    def _get_cursor(self, cnx=None):456        if not cnx:457            cnx = CMySQLConnection(**self.config)458        self.cnx.buffered = True459        return CMySQLCursorBuffered(connection=cnx)460    def test___init__(self):461        self.assertRaises(errors.InterfaceError, CMySQLCursorBuffered,462                          connection='ham')463        cur = self._get_cursor(self.cnx)464        self.assertTrue(hex(id(self.cnx)).upper()[2:-1]465                        in repr(cur._cnx).upper())466    def test_execute(self):467        self.cnx.get_warnings = True468        cur = self._get_cursor(self.cnx)469        self.assertEqual(None, cur.execute(None, None))470        self.assertEqual(True,471                         isinstance(cur, CMySQLCursorBuffered))472        cur.execute("SELECT 1")473        self.assertEqual((1,), cur.fetchone())474    def test_raise_on_warning(self):475        self.cnx.raise_on_warnings = True476        cur = self._get_cursor(self.cnx)477        self.assertRaises(errors.DatabaseError,478                          cur.execute, "SELECT 'a' + 'b'")479    def test_with_rows(self):480        cur = self._get_cursor(self.cnx)481        cur.execute("SELECT 1")482        self.assertTrue(cur.with_rows)483class CMySQLCursorRawTests(tests.CMySQLCursorTests):484    def _get_cursor(self, cnx=None):485        if not cnx:486            cnx = CMySQLConnection(**self.config)487        return CMySQLCursorRaw(connection=cnx)488    def test_fetchone(self):489        cur = self._get_cursor(self.cnx)490        self.assertEqual(None, cur.fetchone())491        cur.execute("SELECT 1, 'string', MAKEDATE(2010,365), 2.5")492        exp = (b'1', b'string', b'2010-12-31', b'2.5')...
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