import unittest from django.db import connection from django.db.models.fields import BooleanField, NullBooleanField from django.db.utils import DatabaseError from django.test import TransactionTestCase from ..models import Square @unittest.skipUnless(connection.vendor == 'oracle', 'Oracle tests') class Tests(unittest.TestCase): def test_quote_name(self): """'%' chars are escaped for query execution.""" name = '"SOME%NAME"' quoted_name = connection.ops.quote_name(name) self.assertEqual(quoted_name % (), name) def test_dbms_session(self): """A stored procedure can be called through a cursor wrapper.""" with connection.cursor() as cursor: cursor.callproc('DBMS_SESSION.SET_IDENTIFIER', ['_django_testing!']) def test_cursor_var(self): """Cursor variables can be passed as query parameters.""" from django.db.backends.oracle.base import Database with connection.cursor() as cursor: var = cursor.var(Database.STRING) cursor.execute("BEGIN %s := 'X'; END; ", [var]) self.assertEqual(var.getvalue(), 'X') def test_client_encoding(self): """Client encoding is set correctly.""" connection.ensure_connection() self.assertEqual(connection.connection.encoding, 'UTF-8') self.assertEqual(connection.connection.nencoding, 'UTF-8') def test_order_of_nls_parameters(self): """ An 'almost right' datetime works with configured NLS parameters (#18465). """ with connection.cursor() as cursor: query = "select 1 from dual where '1936-12-29 00:00' < sysdate" # The query succeeds without errors - pre #18465 this # wasn't the case. cursor.execute(query) self.assertEqual(cursor.fetchone()[0], 1) def test_boolean_constraints(self): """Boolean fields have check constraints on their values.""" for field in (BooleanField(), NullBooleanField(), BooleanField(null=True)): with self.subTest(field=field): field.set_attributes_from_name('is_nice') self.assertIn('"IS_NICE" IN (0,1)', field.db_check(connection)) @unittest.skipUnless(connection.vendor == 'oracle', 'Oracle tests') class TransactionalTests(TransactionTestCase): available_apps = ['backends'] def test_hidden_no_data_found_exception(self): # "ORA-1403: no data found" exception is hidden by Oracle OCI library # when an INSERT statement is used with a RETURNING clause (see #28859). with connection.cursor() as cursor: # Create trigger that raises "ORA-1403: no data found". cursor.execute(""" CREATE OR REPLACE TRIGGER "TRG_NO_DATA_FOUND" AFTER INSERT ON "BACKENDS_SQUARE" FOR EACH ROW BEGIN RAISE NO_DATA_FOUND; END; """) try: with self.assertRaisesMessage(DatabaseError, ( 'The database did not return a new row id. Probably "ORA-1403: ' 'no data found" was raised internally but was hidden by the ' 'Oracle OCI library (see https://code.djangoproject.com/ticket/28859).' )): Square.objects.create(root=2, square=4) finally: with connection.cursor() as cursor: cursor.execute('DROP TRIGGER "TRG_NO_DATA_FOUND"') def test_password_with_at_sign(self): old_password = connection.settings_dict['PASSWORD'] connection.settings_dict['PASSWORD'] = 'p@ssword' try: self.assertIn('/\\"p@ssword\\"@', connection._connect_string()) with self.assertRaises(DatabaseError) as context: connection.cursor() # Database exception: "ORA-01017: invalid username/password" is # expected. self.assertIn('ORA-01017', context.exception.args[0].message) finally: connection.settings_dict['PASSWORD'] = old_password