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Verify that the dsn is not manipulated by make_dsn if not necessary

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This commit is contained in:
Daniele Varrazzo 2016-03-03 15:07:38 +00:00
parent 1c4523f0ac
commit 2c55a1bd53
3 changed files with 32 additions and 15 deletions
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3
lib/__init__.py
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@ -116,9 +116,6 @@ def connect(dsn=None, connection_factory=None, cursor_factory=None,
library: the list of supported parameters depends on the library version. library: the list of supported parameters depends on the library version.
""" """
if dsn is None and not kwargs:
raise TypeError('missing dsn and no parameters')
dsn = _ext.make_dsn(dsn, **kwargs) dsn = _ext.make_dsn(dsn, **kwargs)
conn = _connect(dsn, connection_factory=connection_factory, async=async) conn = _connect(dsn, connection_factory=connection_factory, async=async)
if cursor_factory is not None: if cursor_factory is not None:

7
lib/extensions.py
View File

@ -157,6 +157,13 @@ class NoneAdapter(object):
def make_dsn(dsn=None, **kwargs): def make_dsn(dsn=None, **kwargs):
"""Convert a set of keywords into a connection strings.""" """Convert a set of keywords into a connection strings."""
if dsn is None and not kwargs:
raise TypeError('missing dsn and no parameters')
# If no kwarg is specified don't mung the dsn
if not kwargs:
return dsn
# Override the dsn with the parameters # Override the dsn with the parameters
if 'database' in kwargs: if 'database' in kwargs:
if 'dbname' in kwargs: if 'dbname' in kwargs:

37
tests/test_module.py
View File

@ -31,9 +31,11 @@ from testutils import ConnectingTestCase, skip_copy_if_green, script_to_py3
import psycopg2 import psycopg2
class ConnectTestCase(unittest.TestCase): class ConnectTestCase(unittest.TestCase):
def setUp(self): def setUp(self):
self.args = None self.args = None
def conect_stub(dsn, connection_factory=None, async=False): def conect_stub(dsn, connection_factory=None, async=False):
self.args = (dsn, connection_factory, async) self.args = (dsn, connection_factory, async)
@ -60,8 +62,8 @@ class ConnectTestCase(unittest.TestCase):
self.assertEqual(self.args[2], False) self.assertEqual(self.args[2], False)
def test_dsn(self): def test_dsn(self):
psycopg2.connect('dbname=blah application_name=y') psycopg2.connect('dbname=blah x=y')
self.assertDsnEqual(self.args[0], 'dbname=blah application_name=y') self.assertEqual(self.args[0], 'dbname=blah x=y')
self.assertEqual(self.args[1], None) self.assertEqual(self.args[1], None)
self.assertEqual(self.args[2], False) self.assertEqual(self.args[2], False)
@ -93,24 +95,24 @@ class ConnectTestCase(unittest.TestCase):
def f(dsn, async=False): def f(dsn, async=False):
pass pass
psycopg2.connect(database='foo', application_name='baz', connection_factory=f) psycopg2.connect(database='foo', bar='baz', connection_factory=f)
self.assertDsnEqual(self.args[0], 'dbname=foo application_name=baz') self.assertDsnEqual(self.args[0], 'dbname=foo bar=baz')
self.assertEqual(self.args[1], f) self.assertEqual(self.args[1], f)
self.assertEqual(self.args[2], False) self.assertEqual(self.args[2], False)
psycopg2.connect("dbname=foo application_name=baz", connection_factory=f) psycopg2.connect("dbname=foo bar=baz", connection_factory=f)
self.assertDsnEqual(self.args[0], 'dbname=foo application_name=baz') self.assertDsnEqual(self.args[0], 'dbname=foo bar=baz')
self.assertEqual(self.args[1], f) self.assertEqual(self.args[1], f)
self.assertEqual(self.args[2], False) self.assertEqual(self.args[2], False)
def test_async(self): def test_async(self):
psycopg2.connect(database='foo', application_name='baz', async=1) psycopg2.connect(database='foo', bar='baz', async=1)
self.assertDsnEqual(self.args[0], 'dbname=foo application_name=baz') self.assertDsnEqual(self.args[0], 'dbname=foo bar=baz')
self.assertEqual(self.args[1], None) self.assertEqual(self.args[1], None)
self.assert_(self.args[2]) self.assert_(self.args[2])
psycopg2.connect("dbname=foo application_name=baz", async=True) psycopg2.connect("dbname=foo bar=baz", async=True)
self.assertDsnEqual(self.args[0], 'dbname=foo application_name=baz') self.assertDsnEqual(self.args[0], 'dbname=foo bar=baz')
self.assertEqual(self.args[1], None) self.assertEqual(self.args[1], None)
self.assert_(self.args[2]) self.assert_(self.args[2])
@ -141,6 +143,16 @@ class ConnectTestCase(unittest.TestCase):
psycopg2.connect('dbname=foo', user='postgres') psycopg2.connect('dbname=foo', user='postgres')
self.assertDsnEqual(self.args[0], 'dbname=foo user=postgres') self.assertDsnEqual(self.args[0], 'dbname=foo user=postgres')
def test_no_dsn_munging(self):
psycopg2.connect('nosuchparam=whatevs')
self.assertEqual(self.args[0], 'nosuchparam=whatevs')
psycopg2.connect(nosuchparam='whatevs')
self.assertEqual(self.args[0], 'nosuchparam=whatevs')
self.assertRaises(psycopg2.ProgrammingError,
psycopg2.connect, 'nosuchparam=whatevs', andthis='either')
class ExceptionsTestCase(ConnectingTestCase): class ExceptionsTestCase(ConnectingTestCase):
def test_attributes(self): def test_attributes(self):
@ -205,7 +217,8 @@ class ExceptionsTestCase(ConnectingTestCase):
self.assertEqual(diag.sqlstate, '42P01') self.assertEqual(diag.sqlstate, '42P01')
del diag del diag
gc.collect(); gc.collect() gc.collect()
gc.collect()
assert(w() is None) assert(w() is None)
@skip_copy_if_green @skip_copy_if_green
@ -327,7 +340,7 @@ class TestVersionDiscovery(unittest.TestCase):
self.assertTrue(type(psycopg2.__libpq_version__) is int) self.assertTrue(type(psycopg2.__libpq_version__) is int)
try: try:
self.assertTrue(type(psycopg2.extensions.libpq_version()) is int) self.assertTrue(type(psycopg2.extensions.libpq_version()) is int)
except NotSupportedError: except psycopg2.NotSupportedError:
self.assertTrue(psycopg2.__libpq_version__ < 90100) self.assertTrue(psycopg2.__libpq_version__ < 90100)