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swh/core/db/tests/test_db.py
| Show All 9 Lines | |||||
| from unittest.mock import Mock, MagicMock | from unittest.mock import Mock, MagicMock | ||||
| from hypothesis import strategies, given | from hypothesis import strategies, given | ||||
| import psycopg2 | import psycopg2 | ||||
| import pytest | import pytest | ||||
| from swh.core.db import BaseDb | from swh.core.db import BaseDb | ||||
| from swh.core.db.common import db_transaction, db_transaction_generator | from swh.core.db.common import db_transaction, db_transaction_generator | ||||
| from .db_testing import ( | from .db_testing import SingleDbTestFixture, db_create, db_destroy, db_close | ||||
| SingleDbTestFixture, db_create, db_destroy, db_close, | |||||
| ) | |||||
| INIT_SQL = ''' | INIT_SQL = ''' | ||||
| create table test_table | create table test_table | ||||
| ( | ( | ||||
| i int, | i int, | ||||
| txt text, | txt text, | ||||
| bytes bytea | bytes bytea | ||||
| ); | ); | ||||
| ''' | ''' | ||||
| db_rows = strategies.lists(strategies.tuples( | db_rows = strategies.lists( | ||||
| strategies.tuples( | |||||
| strategies.integers(-2147483648, +2147483647), | strategies.integers(-2147483648, +2147483647), | ||||
| strategies.text( | strategies.text( | ||||
| alphabet=strategies.characters( | alphabet=strategies.characters( | ||||
| blacklist_categories=['Cs'], # surrogates | blacklist_categories=['Cs'], # surrogates | ||||
| blacklist_characters=[ | blacklist_characters=[ | ||||
| '\x00', # pgsql does not support the null codepoint | '\x00', # pgsql does not support the null codepoint | ||||
| '\r', # pgsql normalizes those | '\r', # pgsql normalizes those | ||||
| ] | ], | ||||
| ), | ) | ||||
| ), | ), | ||||
| strategies.binary(), | strategies.binary(), | ||||
| )) | ) | ||||
| ) | |||||
| @pytest.mark.db | @pytest.mark.db | ||||
| def test_connect(): | def test_connect(): | ||||
| db_name = db_create('test-db2', dumps=[]) | db_name = db_create('test-db2', dumps=[]) | ||||
| try: | try: | ||||
| db = BaseDb.connect('dbname=%s' % db_name) | db = BaseDb.connect('dbname=%s' % db_name) | ||||
| with db.cursor() as cur: | with db.cursor() as cur: | ||||
| cur.execute(INIT_SQL) | cur.execute(INIT_SQL) | ||||
| cur.execute("insert into test_table values (1, %s, %s);", | cur.execute("insert into test_table values (1, %s, %s);", ('foo', b'bar')) | ||||
| ('foo', b'bar')) | |||||
| cur.execute("select * from test_table;") | cur.execute("select * from test_table;") | ||||
| assert list(cur) == [(1, 'foo', b'bar')] | assert list(cur) == [(1, 'foo', b'bar')] | ||||
| finally: | finally: | ||||
| db_close(db.conn) | db_close(db.conn) | ||||
| db_destroy(db_name) | db_destroy(db_name) | ||||
| @pytest.mark.db | @pytest.mark.db | ||||
| Show All 11 Lines | def setUpClass(cls): | ||||
| super().setUpClass() | super().setUpClass() | ||||
| def setUp(self): | def setUp(self): | ||||
| super().setUp() | super().setUp() | ||||
| self.db = BaseDb(self.conn) | self.db = BaseDb(self.conn) | ||||
| def test_initialized(self): | def test_initialized(self): | ||||
| cur = self.db.cursor() | cur = self.db.cursor() | ||||
| cur.execute("insert into test_table values (1, %s, %s);", | cur.execute("insert into test_table values (1, %s, %s);", ('foo', b'bar')) | ||||
| ('foo', b'bar')) | |||||
| cur.execute("select * from test_table;") | cur.execute("select * from test_table;") | ||||
| self.assertEqual(list(cur), [(1, 'foo', b'bar')]) | self.assertEqual(list(cur), [(1, 'foo', b'bar')]) | ||||
| def test_reset_tables(self): | def test_reset_tables(self): | ||||
| cur = self.db.cursor() | cur = self.db.cursor() | ||||
| cur.execute("insert into test_table values (1, %s, %s);", | cur.execute("insert into test_table values (1, %s, %s);", ('foo', b'bar')) | ||||
| ('foo', b'bar')) | |||||
| self.reset_db_tables('test-db') | self.reset_db_tables('test-db') | ||||
| cur.execute("select * from test_table;") | cur.execute("select * from test_table;") | ||||
| self.assertEqual(list(cur), []) | self.assertEqual(list(cur), []) | ||||
| @given(db_rows) | @given(db_rows) | ||||
| def test_copy_to(self, data): | def test_copy_to(self, data): | ||||
| # the table is not reset between runs by hypothesis | # the table is not reset between runs by hypothesis | ||||
| self.reset_db_tables('test-db') | self.reset_db_tables('test-db') | ||||
| items = [dict(zip(['i', 'txt', 'bytes'], item)) for item in data] | items = [dict(zip(['i', 'txt', 'bytes'], item)) for item in data] | ||||
| self.db.copy_to(items, 'test_table', ['i', 'txt', 'bytes']) | self.db.copy_to(items, 'test_table', ['i', 'txt', 'bytes']) | ||||
| cur = self.db.cursor() | cur = self.db.cursor() | ||||
| cur.execute('select * from test_table;') | cur.execute('select * from test_table;') | ||||
| self.assertCountEqual(list(cur), data) | self.assertCountEqual(list(cur), data) | ||||
| def test_copy_to_thread_exception(self): | def test_copy_to_thread_exception(self): | ||||
| data = [(2**65, 'foo', b'bar')] | data = [(2 ** 65, 'foo', b'bar')] | ||||
| items = [dict(zip(['i', 'txt', 'bytes'], item)) for item in data] | items = [dict(zip(['i', 'txt', 'bytes'], item)) for item in data] | ||||
| with self.assertRaises(psycopg2.errors.NumericValueOutOfRange): | with self.assertRaises(psycopg2.errors.NumericValueOutOfRange): | ||||
| self.db.copy_to(items, 'test_table', ['i', 'txt', 'bytes']) | self.db.copy_to(items, 'test_table', ['i', 'txt', 'bytes']) | ||||
| def test_db_transaction(mocker): | def test_db_transaction(mocker): | ||||
| expected_cur = object() | expected_cur = object() | ||||
| Show All 9 Lines | def test_db_transaction(mocker): | ||||
| storage = Storage() | storage = Storage() | ||||
| # 'with storage.get_db().transaction() as cur:' should cause | # 'with storage.get_db().transaction() as cur:' should cause | ||||
| # 'cur' to be 'expected_cur' | # 'cur' to be 'expected_cur' | ||||
| db_mock = Mock() | db_mock = Mock() | ||||
| db_mock.transaction.return_value = MagicMock() | db_mock.transaction.return_value = MagicMock() | ||||
| db_mock.transaction.return_value.__enter__.return_value = expected_cur | db_mock.transaction.return_value.__enter__.return_value = expected_cur | ||||
| mocker.patch.object( | mocker.patch.object(storage, 'get_db', return_value=db_mock, create=True) | ||||
| storage, 'get_db', return_value=db_mock, create=True) | |||||
| put_db_mock = mocker.patch.object( | put_db_mock = mocker.patch.object(storage, 'put_db', create=True) | ||||
| storage, 'put_db', create=True) | |||||
| storage.endpoint() | storage.endpoint() | ||||
| assert called | assert called | ||||
| put_db_mock.assert_called_once_with(db_mock) | put_db_mock.assert_called_once_with(db_mock) | ||||
| def test_db_transaction__with_generator(): | def test_db_transaction__with_generator(): | ||||
| with pytest.raises(ValueError, match='generator'): | with pytest.raises(ValueError, match='generator'): | ||||
| class Storage: | class Storage: | ||||
| @db_transaction() | @db_transaction() | ||||
| def endpoint(self, cur=None, db=None): | def endpoint(self, cur=None, db=None): | ||||
| yield None | yield None | ||||
| def test_db_transaction_signature(): | def test_db_transaction_signature(): | ||||
| """Checks db_transaction removes the 'cur' and 'db' arguments.""" | """Checks db_transaction removes the 'cur' and 'db' arguments.""" | ||||
| def f(self, foo, *, bar=None): | def f(self, foo, *, bar=None): | ||||
| pass | pass | ||||
| expected_sig = inspect.signature(f) | expected_sig = inspect.signature(f) | ||||
| @db_transaction() | @db_transaction() | ||||
| def g(self, foo, *, bar=None, db=None, cur=None): | def g(self, foo, *, bar=None, db=None, cur=None): | ||||
| pass | pass | ||||
| actual_sig = inspect.signature(g) | actual_sig = inspect.signature(g) | ||||
| Show All 15 Lines | def test_db_transaction_generator(mocker): | ||||
| storage = Storage() | storage = Storage() | ||||
| # 'with storage.get_db().transaction() as cur:' should cause | # 'with storage.get_db().transaction() as cur:' should cause | ||||
| # 'cur' to be 'expected_cur' | # 'cur' to be 'expected_cur' | ||||
| db_mock = Mock() | db_mock = Mock() | ||||
| db_mock.transaction.return_value = MagicMock() | db_mock.transaction.return_value = MagicMock() | ||||
| db_mock.transaction.return_value.__enter__.return_value = expected_cur | db_mock.transaction.return_value.__enter__.return_value = expected_cur | ||||
| mocker.patch.object( | mocker.patch.object(storage, 'get_db', return_value=db_mock, create=True) | ||||
| storage, 'get_db', return_value=db_mock, create=True) | |||||
| put_db_mock = mocker.patch.object( | put_db_mock = mocker.patch.object(storage, 'put_db', create=True) | ||||
| storage, 'put_db', create=True) | |||||
| list(storage.endpoint()) | list(storage.endpoint()) | ||||
| assert called | assert called | ||||
| put_db_mock.assert_called_once_with(db_mock) | put_db_mock.assert_called_once_with(db_mock) | ||||
| def test_db_transaction_generator__with_nongenerator(): | def test_db_transaction_generator__with_nongenerator(): | ||||
| with pytest.raises(ValueError, match='generator'): | with pytest.raises(ValueError, match='generator'): | ||||
| class Storage: | class Storage: | ||||
| @db_transaction_generator() | @db_transaction_generator() | ||||
| def endpoint(self, cur=None, db=None): | def endpoint(self, cur=None, db=None): | ||||
| pass | pass | ||||
| def test_db_transaction_generator_signature(): | def test_db_transaction_generator_signature(): | ||||
| """Checks db_transaction removes the 'cur' and 'db' arguments.""" | """Checks db_transaction removes the 'cur' and 'db' arguments.""" | ||||
| def f(self, foo, *, bar=None): | def f(self, foo, *, bar=None): | ||||
| pass | pass | ||||
| expected_sig = inspect.signature(f) | expected_sig = inspect.signature(f) | ||||
| @db_transaction_generator() | @db_transaction_generator() | ||||
| def g(self, foo, *, bar=None, db=None, cur=None): | def g(self, foo, *, bar=None, db=None, cur=None): | ||||
| yield None | yield None | ||||
| actual_sig = inspect.signature(g) | actual_sig = inspect.signature(g) | ||||
| assert actual_sig == expected_sig | assert actual_sig == expected_sig | ||||