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120 lines
4.7 KiB
Python
120 lines
4.7 KiB
Python
import unittest
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from unittest import mock
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from django.db import DatabaseError, NotSupportedError, connection
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from django.db.models import BooleanField
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from django.test import TestCase, TransactionTestCase
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from ..models import Square, VeryLongModelNameZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
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@unittest.skipUnless(connection.vendor == "oracle", "Oracle tests")
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class Tests(TestCase):
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def test_quote_name(self):
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"""'%' chars are escaped for query execution."""
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name = '"SOME%NAME"'
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quoted_name = connection.ops.quote_name(name)
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self.assertEqual(quoted_name % (), name)
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def test_quote_name_db_table(self):
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model = VeryLongModelNameZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
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db_table = model._meta.db_table.upper()
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self.assertEqual(
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f'"{db_table}"',
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connection.ops.quote_name(
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"backends_verylongmodelnamezzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz",
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),
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)
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def test_dbms_session(self):
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"""A stored procedure can be called through a cursor wrapper."""
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with connection.cursor() as cursor:
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cursor.callproc("DBMS_SESSION.SET_IDENTIFIER", ["_django_testing!"])
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def test_cursor_var(self):
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"""Cursor variables can be passed as query parameters."""
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with connection.cursor() as cursor:
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var = cursor.var(str)
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cursor.execute("BEGIN %s := 'X'; END; ", [var])
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self.assertEqual(var.getvalue(), "X")
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def test_order_of_nls_parameters(self):
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"""
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An 'almost right' datetime works with configured NLS parameters
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(#18465).
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"""
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with connection.cursor() as cursor:
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query = "select 1 from dual where '1936-12-29 00:00' < sysdate"
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# The query succeeds without errors - pre #18465 this
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# wasn't the case.
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cursor.execute(query)
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self.assertEqual(cursor.fetchone()[0], 1)
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def test_boolean_constraints(self):
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"""Boolean fields have check constraints on their values."""
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for field in (BooleanField(), BooleanField(null=True)):
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with self.subTest(field=field):
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field.set_attributes_from_name("is_nice")
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self.assertIn('"IS_NICE" IN (0,1)', field.db_check(connection))
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@mock.patch.object(
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connection,
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"get_database_version",
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return_value=(18, 1),
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)
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def test_check_database_version_supported(self, mocked_get_database_version):
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msg = "Oracle 19 or later is required (found 18.1)."
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with self.assertRaisesMessage(NotSupportedError, msg):
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connection.check_database_version_supported()
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self.assertTrue(mocked_get_database_version.called)
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@unittest.skipUnless(connection.vendor == "oracle", "Oracle tests")
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class TransactionalTests(TransactionTestCase):
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available_apps = ["backends"]
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def test_hidden_no_data_found_exception(self):
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# "ORA-1403: no data found" exception is hidden by Oracle OCI library
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# when an INSERT statement is used with a RETURNING clause (see #28859).
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with connection.cursor() as cursor:
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# Create trigger that raises "ORA-1403: no data found".
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cursor.execute(
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"""
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CREATE OR REPLACE TRIGGER "TRG_NO_DATA_FOUND"
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AFTER INSERT ON "BACKENDS_SQUARE"
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FOR EACH ROW
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BEGIN
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RAISE NO_DATA_FOUND;
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END;
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"""
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)
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try:
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with self.assertRaisesMessage(
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DatabaseError,
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(
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'The database did not return a new row id. Probably "ORA-1403: no '
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'data found" was raised internally but was hidden by the Oracle '
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"OCI library (see https://code.djangoproject.com/ticket/28859)."
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),
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):
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Square.objects.create(root=2, square=4)
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finally:
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with connection.cursor() as cursor:
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cursor.execute('DROP TRIGGER "TRG_NO_DATA_FOUND"')
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def test_password_with_at_sign(self):
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old_password = connection.settings_dict["PASSWORD"]
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connection.settings_dict["PASSWORD"] = "p@ssword"
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try:
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self.assertIn(
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'/"p@ssword"@',
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connection.client.connect_string(connection.settings_dict),
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)
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with self.assertRaises(DatabaseError) as context:
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connection.cursor()
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# Database exception: "ORA-01017: invalid username/password" is
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# expected.
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self.assertIn("ORA-01017", context.exception.args[0].message)
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finally:
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connection.settings_dict["PASSWORD"] = old_password
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