mirror of
https://github.com/psycopg/psycopg2.git
synced 2024-11-22 17:06:33 +03:00
346 lines
11 KiB
Python
Executable File
346 lines
11 KiB
Python
Executable File
#!/usr/bin/env python
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# test_module.py - unit test for the module interface
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#
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# Copyright (C) 2011 Daniele Varrazzo <daniele.varrazzo@gmail.com>
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#
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# psycopg2 is free software: you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# In addition, as a special exception, the copyright holders give
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# permission to link this program with the OpenSSL library (or with
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# modified versions of OpenSSL that use the same license as OpenSSL),
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# and distribute linked combinations including the two.
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#
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# You must obey the GNU Lesser General Public License in all respects for
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# all of the code used other than OpenSSL.
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#
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# psycopg2 is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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# License for more details.
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import os
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import sys
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from subprocess import Popen
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from testutils import (unittest, skip_before_python, skip_before_postgres,
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ConnectingTestCase, skip_copy_if_green, script_to_py3, assertDsnEqual, slow)
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import psycopg2
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class ConnectTestCase(unittest.TestCase):
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def setUp(self):
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self.args = None
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def connect_stub(dsn, connection_factory=None, async_=False):
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self.args = (dsn, connection_factory, async_)
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self._connect_orig = psycopg2._connect
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psycopg2._connect = connect_stub
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def tearDown(self):
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psycopg2._connect = self._connect_orig
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def test_there_has_to_be_something(self):
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self.assertRaises(TypeError, psycopg2.connect)
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self.assertRaises(TypeError, psycopg2.connect,
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connection_factory=lambda dsn, async_=False: None)
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self.assertRaises(TypeError, psycopg2.connect,
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async_=True)
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def test_no_keywords(self):
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psycopg2.connect('')
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self.assertEqual(self.args[0], '')
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self.assertEqual(self.args[1], None)
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self.assertEqual(self.args[2], False)
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def test_dsn(self):
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psycopg2.connect('dbname=blah host=y')
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self.assertEqual(self.args[0], 'dbname=blah host=y')
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self.assertEqual(self.args[1], None)
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self.assertEqual(self.args[2], False)
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def test_supported_keywords(self):
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psycopg2.connect(database='foo')
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self.assertEqual(self.args[0], 'dbname=foo')
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psycopg2.connect(user='postgres')
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self.assertEqual(self.args[0], 'user=postgres')
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psycopg2.connect(password='secret')
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self.assertEqual(self.args[0], 'password=secret')
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psycopg2.connect(port=5432)
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self.assertEqual(self.args[0], 'port=5432')
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psycopg2.connect(sslmode='require')
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self.assertEqual(self.args[0], 'sslmode=require')
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psycopg2.connect(database='foo',
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user='postgres', password='secret', port=5432)
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self.assert_('dbname=foo' in self.args[0])
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self.assert_('user=postgres' in self.args[0])
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self.assert_('password=secret' in self.args[0])
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self.assert_('port=5432' in self.args[0])
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self.assertEqual(len(self.args[0].split()), 4)
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def test_generic_keywords(self):
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psycopg2.connect(options='stuff')
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self.assertEqual(self.args[0], 'options=stuff')
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def test_factory(self):
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def f(dsn, async_=False):
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pass
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psycopg2.connect(database='foo', host='baz', connection_factory=f)
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assertDsnEqual(self, self.args[0], 'dbname=foo host=baz')
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self.assertEqual(self.args[1], f)
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self.assertEqual(self.args[2], False)
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psycopg2.connect("dbname=foo host=baz", connection_factory=f)
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assertDsnEqual(self, self.args[0], 'dbname=foo host=baz')
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self.assertEqual(self.args[1], f)
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self.assertEqual(self.args[2], False)
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def test_async(self):
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psycopg2.connect(database='foo', host='baz', async_=1)
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assertDsnEqual(self, self.args[0], 'dbname=foo host=baz')
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self.assertEqual(self.args[1], None)
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self.assert_(self.args[2])
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psycopg2.connect("dbname=foo host=baz", async_=True)
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assertDsnEqual(self, self.args[0], 'dbname=foo host=baz')
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self.assertEqual(self.args[1], None)
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self.assert_(self.args[2])
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def test_int_port_param(self):
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psycopg2.connect(database='sony', port=6543)
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dsn = " %s " % self.args[0]
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self.assert_(" dbname=sony " in dsn, dsn)
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self.assert_(" port=6543 " in dsn, dsn)
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def test_empty_param(self):
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psycopg2.connect(database='sony', password='')
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assertDsnEqual(self, self.args[0], "dbname=sony password=''")
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def test_escape(self):
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psycopg2.connect(database='hello world')
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self.assertEqual(self.args[0], "dbname='hello world'")
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psycopg2.connect(database=r'back\slash')
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self.assertEqual(self.args[0], r"dbname=back\\slash")
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psycopg2.connect(database="quo'te")
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self.assertEqual(self.args[0], r"dbname=quo\'te")
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psycopg2.connect(database="with\ttab")
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self.assertEqual(self.args[0], "dbname='with\ttab'")
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psycopg2.connect(database=r"\every thing'")
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self.assertEqual(self.args[0], r"dbname='\\every thing\''")
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def test_params_merging(self):
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psycopg2.connect('dbname=foo', database='bar')
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self.assertEqual(self.args[0], 'dbname=bar')
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psycopg2.connect('dbname=foo', user='postgres')
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assertDsnEqual(self, self.args[0], 'dbname=foo user=postgres')
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class ExceptionsTestCase(ConnectingTestCase):
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def test_attributes(self):
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cur = self.conn.cursor()
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try:
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cur.execute("select * from nonexist")
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except psycopg2.Error, exc:
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e = exc
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self.assertEqual(e.pgcode, '42P01')
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self.assert_(e.pgerror)
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self.assert_(e.cursor is cur)
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def test_diagnostics_attributes(self):
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cur = self.conn.cursor()
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try:
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cur.execute("select * from nonexist")
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except psycopg2.Error, exc:
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e = exc
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diag = e.diag
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self.assert_(isinstance(diag, psycopg2.extensions.Diagnostics))
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for attr in [
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'column_name', 'constraint_name', 'context', 'datatype_name',
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'internal_position', 'internal_query', 'message_detail',
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'message_hint', 'message_primary', 'schema_name', 'severity',
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'source_file', 'source_function', 'source_line', 'sqlstate',
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'statement_position', 'table_name', ]:
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v = getattr(diag, attr)
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if v is not None:
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self.assert_(isinstance(v, str))
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def test_diagnostics_values(self):
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cur = self.conn.cursor()
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try:
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cur.execute("select * from nonexist")
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except psycopg2.Error, exc:
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e = exc
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self.assertEqual(e.diag.sqlstate, '42P01')
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self.assertEqual(e.diag.severity, 'ERROR')
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def test_diagnostics_life(self):
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import gc
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from weakref import ref
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def tmp():
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cur = self.conn.cursor()
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try:
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cur.execute("select * from nonexist")
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except psycopg2.Error, exc:
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return cur, exc
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cur, e = tmp()
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diag = e.diag
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w = ref(cur)
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del e, cur
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gc.collect()
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assert(w() is not None)
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self.assertEqual(diag.sqlstate, '42P01')
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del diag
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gc.collect()
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gc.collect()
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assert(w() is None)
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@skip_copy_if_green
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def test_diagnostics_copy(self):
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from StringIO import StringIO
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f = StringIO()
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cur = self.conn.cursor()
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try:
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cur.copy_to(f, 'nonexist')
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except psycopg2.Error, exc:
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diag = exc.diag
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self.assertEqual(diag.sqlstate, '42P01')
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def test_diagnostics_independent(self):
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cur = self.conn.cursor()
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try:
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cur.execute("l'acqua e' poca e 'a papera nun galleggia")
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except Exception, exc:
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diag1 = exc.diag
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self.conn.rollback()
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try:
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cur.execute("select level from water where ducks > 1")
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except psycopg2.Error, exc:
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diag2 = exc.diag
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self.assertEqual(diag1.sqlstate, '42601')
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self.assertEqual(diag2.sqlstate, '42P01')
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def test_diagnostics_from_commit(self):
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cur = self.conn.cursor()
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cur.execute("""
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create temp table test_deferred (
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data int primary key,
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ref int references test_deferred (data)
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deferrable initially deferred)
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""")
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cur.execute("insert into test_deferred values (1,2)")
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try:
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self.conn.commit()
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except psycopg2.Error, exc:
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e = exc
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self.assertEqual(e.diag.sqlstate, '23503')
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@skip_before_postgres(9, 3)
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def test_9_3_diagnostics(self):
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cur = self.conn.cursor()
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cur.execute("""
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create temp table test_exc (
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data int constraint chk_eq1 check (data = 1)
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)""")
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try:
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cur.execute("insert into test_exc values(2)")
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except psycopg2.Error, exc:
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e = exc
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self.assertEqual(e.pgcode, '23514')
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self.assertEqual(e.diag.schema_name[:7], "pg_temp")
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self.assertEqual(e.diag.table_name, "test_exc")
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self.assertEqual(e.diag.column_name, None)
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self.assertEqual(e.diag.constraint_name, "chk_eq1")
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self.assertEqual(e.diag.datatype_name, None)
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@skip_before_python(2, 5)
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def test_pickle(self):
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import pickle
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cur = self.conn.cursor()
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try:
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cur.execute("select * from nonexist")
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except psycopg2.Error, exc:
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e = exc
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e1 = pickle.loads(pickle.dumps(e))
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self.assertEqual(e.pgerror, e1.pgerror)
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self.assertEqual(e.pgcode, e1.pgcode)
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self.assert_(e1.cursor is None)
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@skip_before_python(2, 5)
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def test_pickle_connection_error(self):
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# segfaults on psycopg 2.5.1 - see ticket #170
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import pickle
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try:
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psycopg2.connect('dbname=nosuchdatabasemate')
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except psycopg2.Error, exc:
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e = exc
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e1 = pickle.loads(pickle.dumps(e))
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self.assertEqual(e.pgerror, e1.pgerror)
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self.assertEqual(e.pgcode, e1.pgcode)
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self.assert_(e1.cursor is None)
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class TestExtensionModule(unittest.TestCase):
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@slow
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def test_import_internal(self):
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# check that the internal package can be imported "naked"
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# we may break this property if there is a compelling reason to do so,
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# however having it allows for some import juggling such as the one
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# required in ticket #201.
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pkgdir = os.path.dirname(psycopg2.__file__)
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pardir = os.path.dirname(pkgdir)
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self.assert_(pardir in sys.path)
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script = ("""
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import sys
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sys.path.remove(%r)
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sys.path.insert(0, %r)
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import _psycopg
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""" % (pardir, pkgdir))
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proc = Popen([sys.executable, '-c', script_to_py3(script)])
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proc.communicate()
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self.assertEqual(0, proc.returncode)
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class TestVersionDiscovery(unittest.TestCase):
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def test_libpq_version(self):
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self.assertTrue(type(psycopg2.__libpq_version__) is int)
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try:
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self.assertTrue(type(psycopg2.extensions.libpq_version()) is int)
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except psycopg2.NotSupportedError:
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self.assertTrue(psycopg2.__libpq_version__ < 90100)
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def test_suite():
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return unittest.TestLoader().loadTestsFromName(__name__)
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if __name__ == "__main__":
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unittest.main()
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