Source code for sqlobject.tests.dbtest

"""
The framework for making database tests.
"""
from __future__ import print_function

import logging
import os
import sys
from pytest import raises, skip
import sqlobject
from sqlobject.col import use_microseconds
import sqlobject.conftest as conftest

if sys.platform[:3] == "win":
    def getcwd():
        return os.getcwd().replace('\\', '/')
else:
    getcwd = os.getcwd

"""
supportsMatrix defines what database backends support what features.
Each feature has a name, if you see a key like '+featureName' then
only the databases listed support the feature.  Conversely,
'-featureName' means all databases *except* the ones listed support
the feature.  The databases are given by their SQLObject string name,
separated by spaces.

The function supports(featureName) returns True or False based on this,
and you can use it like::

    def test_featureX():
        if not supports('featureX'):
            pytest.skip("Doesn't support featureX")
"""
supportsMatrix = {
    '-blobData': 'mssql rdbhost',
    '-decimalColumn': 'mssql',
    '-dropTableCascade': 'sybase mssql mysql',
    '-emptyTable': 'mssql',
    '+exceptions': 'mysql postgres sqlite',
    '-expressionIndex': 'mysql sqlite firebird mssql',
    '-limitSelect': 'mssql',
    '+memorydb': 'sqlite',
    '+rlike': 'mysql postgres sqlite',
    '+schema': 'postgres',
    '-transactions': 'mysql rdbhost',
}


[docs]def setupClass(soClasses, force=False): """ Makes sure the classes have a corresponding and correct table. This won't recreate the table if it already exists. It will check that the table is properly defined (in case you change your table definition). You can provide a single class or a list of classes; if a list then classes will be created in the order you provide, and destroyed in the opposite order. So if class A depends on class B, then do setupClass([B, A]) and B won't be destroyed or cleared until after A is destroyed or cleared. If force is true, then the database will be recreated no matter what. """ global hub if not isinstance(soClasses, (list, tuple)): soClasses = [soClasses] connection = getConnection() for soClass in soClasses: # This would be an alternate way to register connections: # try: # hub # except NameError: # hub = sqlobject.dbconnection.ConnectionHub() # soClass._connection = hub # hub.threadConnection = connection # hub.processConnection = connection soClass._connection = connection installOrClear(soClasses, force=force) return soClasses
def speedupSQLiteConnection(connection): connection.query("PRAGMA synchronous=OFF") connection.query("PRAGMA count_changes=OFF") connection.query("PRAGMA journal_mode=MEMORY") connection.query("PRAGMA temp_store=MEMORY") installedDBFilename = os.path.join(getcwd(), 'dbs_data.tmp') installedDBTracker = sqlobject.connectionForURI( 'sqlite:///' + installedDBFilename) speedupSQLiteConnection(installedDBTracker)
[docs]def getConnection(**kw): name = getConnectionURI() conn = sqlobject.connectionForURI(name, **kw) if conftest.option.show_sql: conn.debug = True if conftest.option.show_sql_output: conn.debugOutput = True if (conn.dbName == 'sqlite') and not conn._memory: speedupSQLiteConnection(conn) return conn
[docs]def getConnectionURI(): name = conftest.option.Database if name in conftest.connectionShortcuts: name = conftest.connectionShortcuts[name] return name
try: connection = getConnection() except Exception as e: # At least this module should be importable... # The module was imported during documentation building if 'sphinx' not in sys.modules: print("Could not open database: %s" % e, file=sys.stderr) else: if (connection.dbName == 'firebird') \ or ( (connection.dbName == 'mysql') and (os.environ.get('APPVEYOR')) ): use_microseconds(False) class InstalledTestDatabase(sqlobject.SQLObject): """ This table is set up in SQLite (always, regardless of --Database) and tracks what tables have been set up in the 'real' database. This way we don't keep recreating the tables over and over when there are multiple tests that use a table. """ _connection = installedDBTracker table_name = sqlobject.StringCol(notNull=True) createSQL = sqlobject.StringCol(notNull=True) connectionURI = sqlobject.StringCol(notNull=True) @classmethod def installOrClear(cls, soClasses, force=False): cls.setup() reversed = list(soClasses)[:] reversed.reverse() # If anything needs to be dropped, they all must be dropped # But if we're forcing it, then we'll always drop if force: any_drops = True else: any_drops = False for soClass in reversed: table = soClass.sqlmeta.table if not soClass._connection.tableExists(table): continue items = list(cls.selectBy( table_name=table, connectionURI=soClass._connection.uri())) if items: instance = items[0] sql = instance.createSQL else: sql = None newSQL, constraints = soClass.createTableSQL() if sql != newSQL: if sql is not None: instance.destroySelf() any_drops = True break for soClass in reversed: if soClass._connection.tableExists(soClass.sqlmeta.table): if any_drops: cls.drop(soClass) else: cls.clear(soClass) for soClass in soClasses: table = soClass.sqlmeta.table if not soClass._connection.tableExists(table): cls.install(soClass) @classmethod def install(cls, soClass): """ Creates the given table in its database. """ sql = getattr(soClass, soClass._connection.dbName + 'Create', None) all_extra = [] if sql: soClass._connection.query(sql) else: sql, extra_sql = soClass.createTableSQL() soClass.createTable(applyConstraints=False) all_extra.extend(extra_sql) cls(table_name=soClass.sqlmeta.table, createSQL=sql, connectionURI=soClass._connection.uri()) for extra_sql in all_extra: soClass._connection.query(extra_sql) @classmethod def drop(cls, soClass): """ Drops a the given table from its database """ sql = getattr(soClass, soClass._connection.dbName + 'Drop', None) if sql: soClass._connection.query(sql) else: soClass.dropTable() @classmethod def clear(cls, soClass): """ Removes all the rows from a table. """ soClass.clearTable() @classmethod def setup(cls): """ This sets up *this* table. """ if not cls._connection.tableExists(cls.sqlmeta.table): cls.createTable() installOrClear = InstalledTestDatabase.installOrClear
[docs]class Dummy(object): """ Used for creating fake objects; a really poor 'mock object'. """ def __init__(self, **kw): for name, value in kw.items(): setattr(self, name, value)
[docs]def inserts(cls, data, schema=None): """ Creates a bunch of rows. You can use it like:: inserts(Person, [{'fname': 'blah', 'lname': 'doe'}, ...]) Or:: inserts(Person, [('blah', 'doe')], schema= ['fname', 'lname']) If you give a single string for the `schema` then it'll split that string to get the list of column names. """ if schema: if isinstance(schema, str): schema = schema.split() keywordData = [] for item in data: itemDict = {} for name, value in zip(schema, item): itemDict[name] = value keywordData.append(itemDict) data = keywordData results = [] for args in data: results.append(cls(**args)) return results
[docs]def supports(feature): dbName = connection.dbName support = supportsMatrix.get('+' + feature, None) notSupport = supportsMatrix.get('-' + feature, None) if support is not None and dbName in support.split(): return True elif support: return False if notSupport is not None and dbName in notSupport.split(): return False elif notSupport: return True assert notSupport is not None or support is not None, ( "The supportMatrix does not list this feature: %r" % feature)
# To avoid name clashes: _inserts = inserts def setSQLiteConnectionFactory(TableClass, factory): from sqlobject.sqlite.sqliteconnection import SQLiteConnection conn = TableClass._connection TableClass._connection = SQLiteConnection( filename=conn.filename, name=conn.name, debug=conn.debug, debugOutput=conn.debugOutput, cache=conn.cache, style=conn.style, autoCommit=conn.autoCommit, debugThreading=conn.debugThreading, registry=conn.registry, factory=factory ) speedupSQLiteConnection(TableClass._connection) installOrClear([TableClass])
[docs]def deprecated_module(): sqlobject.main.warnings_level = None sqlobject.main.exception_level = None
[docs]def setup_module(mod): # modules with '_old' test backward compatible methods, so they # don't get warnings or errors. mod_name = str(mod.__name__) if mod_name.endswith('/py'): mod_name = mod_name[:-3] if mod_name.endswith('_old'): sqlobject.main.warnings_level = None sqlobject.main.exception_level = None else: sqlobject.main.warnings_level = None sqlobject.main.exception_level = 0
[docs]def teardown_module(mod=None): sqlobject.main.warnings_level = None sqlobject.main.exception_level = 0
[docs]def setupLogging(): fmt = '[%(asctime)s] %(name)s %(levelname)s: %(message)s' formatter = logging.Formatter(fmt) hdlr = logging.StreamHandler(sys.stderr) hdlr.setFormatter(formatter) hdlr.setLevel(logging.NOTSET) logger = logging.getLogger() logger.addHandler(hdlr)
[docs]def setupCyclicClasses(*classes): if not supports('dropTableCascade'): skip("dropTableCascade isn't supported") conn = getConnection() for soClass in classes: soClass.setConnection(conn) soClass.dropTable(ifExists=True, cascade=True) constraints = [] for soClass in classes: constraints += soClass.createTable(ifNotExists=True, applyConstraints=False) for constraint in constraints: conn.query(constraint)
__all__ = ['Dummy', 'deprecated_module', 'getConnection', 'getConnectionURI', 'inserts', 'raises', 'setupClass', 'setupCyclicClasses', 'setupLogging', 'setup_module', 'supports', 'teardown_module', ]