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#-*- coding: iso-8859-1 -*-
# pysqlite2/test/userfunctions.py: tests for user-defined functions and
# aggregates.
#
# Copyright (C) 2005-2007 Gerhard Häring <gh@ghaering.de>
#
# This file is part of pysqlite.
#
# This software is provided 'as-is', without any express or implied
# warranty. In no event will the authors be held liable for any damages
# arising from the use of this software.
#
# Permission is granted to anyone to use this software for any purpose,
# including commercial applications, and to alter it and redistribute it
# freely, subject to the following restrictions:
#
# 1. The origin of this software must not be misrepresented; you must not
# claim that you wrote the original software. If you use this software
# in a product, an acknowledgment in the product documentation would be
# appreciated but is not required.
# 2. Altered source versions must be plainly marked as such, and must not be
# misrepresented as being the original software.
# 3. This notice may not be removed or altered from any source distribution.
import unittest
import sqlite3 as sqlite
def func_returntext():
return "foo"
def func_returnunicode():
return "bar"
def func_returnint():
return 42
def func_returnfloat():
return 3.14
def func_returnnull():
return None
def func_returnblob():
return b"blob"
def func_returnlonglong():
return 1<<31
def func_raiseexception():
5/0
def func_isstring(v):
return type(v) is str
def func_isint(v):
return type(v) is int
def func_isfloat(v):
return type(v) is float
def func_isnone(v):
return type(v) is type(None)
def func_isblob(v):
return isinstance(v, (bytes, memoryview))
def func_islonglong(v):
return isinstance(v, int) and v >= 1<<31
def func(*args):
return len(args)
class AggrNoStep:
def __init__(self):
pass
def finalize(self):
return 1
class AggrNoFinalize:
def __init__(self):
pass
def step(self, x):
pass
class AggrExceptionInInit:
def __init__(self):
5/0
def step(self, x):
pass
def finalize(self):
pass
class AggrExceptionInStep:
def __init__(self):
pass
def step(self, x):
5/0
def finalize(self):
return 42
class AggrExceptionInFinalize:
def __init__(self):
pass
def step(self, x):
pass
def finalize(self):
5/0
class AggrCheckType:
def __init__(self):
self.val = None
def step(self, whichType, val):
theType = {"str": str, "int": int, "float": float, "None": type(None),
"blob": bytes}
self.val = int(theType[whichType] is type(val))
def finalize(self):
return self.val
class AggrCheckTypes:
def __init__(self):
self.val = 0
def step(self, whichType, *vals):
theType = {"str": str, "int": int, "float": float, "None": type(None),
"blob": bytes}
for val in vals:
self.val += int(theType[whichType] is type(val))
def finalize(self):
return self.val
class AggrSum:
def __init__(self):
self.val = 0.0
def step(self, val):
self.val += val
def finalize(self):
return self.val
class FunctionTests(unittest.TestCase):
def setUp(self):
self.con = sqlite.connect(":memory:")
self.con.create_function("returntext", 0, func_returntext)
self.con.create_function("returnunicode", 0, func_returnunicode)
self.con.create_function("returnint", 0, func_returnint)
self.con.create_function("returnfloat", 0, func_returnfloat)
self.con.create_function("returnnull", 0, func_returnnull)
self.con.create_function("returnblob", 0, func_returnblob)
self.con.create_function("returnlonglong", 0, func_returnlonglong)
self.con.create_function("raiseexception", 0, func_raiseexception)
self.con.create_function("isstring", 1, func_isstring)
self.con.create_function("isint", 1, func_isint)
self.con.create_function("isfloat", 1, func_isfloat)
self.con.create_function("isnone", 1, func_isnone)
self.con.create_function("isblob", 1, func_isblob)
self.con.create_function("islonglong", 1, func_islonglong)
self.con.create_function("spam", -1, func)
def tearDown(self):
self.con.close()
def CheckFuncErrorOnCreate(self):
with self.assertRaises(sqlite.OperationalError):
self.con.create_function("bla", -100, lambda x: 2*x)
def CheckFuncRefCount(self):
def getfunc():
def f():
return 1
return f
f = getfunc()
globals()["foo"] = f
# self.con.create_function("reftest", 0, getfunc())
self.con.create_function("reftest", 0, f)
cur = self.con.cursor()
cur.execute("select reftest()")
def CheckFuncReturnText(self):
cur = self.con.cursor()
cur.execute("select returntext()")
val = cur.fetchone()[0]
self.assertEqual(type(val), str)
self.assertEqual(val, "foo")
def CheckFuncReturnUnicode(self):
cur = self.con.cursor()
cur.execute("select returnunicode()")
val = cur.fetchone()[0]
self.assertEqual(type(val), str)
self.assertEqual(val, "bar")
def CheckFuncReturnInt(self):
cur = self.con.cursor()
cur.execute("select returnint()")
val = cur.fetchone()[0]
self.assertEqual(type(val), int)
self.assertEqual(val, 42)
def CheckFuncReturnFloat(self):
cur = self.con.cursor()
cur.execute("select returnfloat()")
val = cur.fetchone()[0]
self.assertEqual(type(val), float)
if val < 3.139 or val > 3.141:
self.fail("wrong value")
def CheckFuncReturnNull(self):
cur = self.con.cursor()
cur.execute("select returnnull()")
val = cur.fetchone()[0]
self.assertEqual(type(val), type(None))
self.assertEqual(val, None)
def CheckFuncReturnBlob(self):
cur = self.con.cursor()
cur.execute("select returnblob()")
val = cur.fetchone()[0]
self.assertEqual(type(val), bytes)
self.assertEqual(val, b"blob")
def CheckFuncReturnLongLong(self):
cur = self.con.cursor()
cur.execute("select returnlonglong()")
val = cur.fetchone()[0]
self.assertEqual(val, 1<<31)
def CheckFuncException(self):
cur = self.con.cursor()
with self.assertRaises(sqlite.OperationalError) as cm:
cur.execute("select raiseexception()")
cur.fetchone()
self.assertEqual(str(cm.exception), 'user-defined function raised exception')
def CheckParamString(self):
cur = self.con.cursor()
cur.execute("select isstring(?)", ("foo",))
val = cur.fetchone()[0]
self.assertEqual(val, 1)
def CheckParamInt(self):
cur = self.con.cursor()
cur.execute("select isint(?)", (42,))
val = cur.fetchone()[0]
self.assertEqual(val, 1)
def CheckParamFloat(self):
cur = self.con.cursor()
cur.execute("select isfloat(?)", (3.14,))
val = cur.fetchone()[0]
self.assertEqual(val, 1)
def CheckParamNone(self):
cur = self.con.cursor()
cur.execute("select isnone(?)", (None,))
val = cur.fetchone()[0]
self.assertEqual(val, 1)
def CheckParamBlob(self):
cur = self.con.cursor()
cur.execute("select isblob(?)", (memoryview(b"blob"),))
val = cur.fetchone()[0]
self.assertEqual(val, 1)
def CheckParamLongLong(self):
cur = self.con.cursor()
cur.execute("select islonglong(?)", (1<<42,))
val = cur.fetchone()[0]
self.assertEqual(val, 1)
def CheckAnyArguments(self):
cur = self.con.cursor()
cur.execute("select spam(?, ?)", (1, 2))
val = cur.fetchone()[0]
self.assertEqual(val, 2)
class AggregateTests(unittest.TestCase):
def setUp(self):
self.con = sqlite.connect(":memory:")
cur = self.con.cursor()
cur.execute("""
create table test(
t text,
i integer,
f float,
n,
b blob
)
""")
cur.execute("insert into test(t, i, f, n, b) values (?, ?, ?, ?, ?)",
("foo", 5, 3.14, None, memoryview(b"blob"),))
self.con.create_aggregate("nostep", 1, AggrNoStep)
self.con.create_aggregate("nofinalize", 1, AggrNoFinalize)
self.con.create_aggregate("excInit", 1, AggrExceptionInInit)
self.con.create_aggregate("excStep", 1, AggrExceptionInStep)
self.con.create_aggregate("excFinalize", 1, AggrExceptionInFinalize)
self.con.create_aggregate("checkType", 2, AggrCheckType)
self.con.create_aggregate("checkTypes", -1, AggrCheckTypes)
self.con.create_aggregate("mysum", 1, AggrSum)
def tearDown(self):
#self.cur.close()
#self.con.close()
pass
def CheckAggrErrorOnCreate(self):
with self.assertRaises(sqlite.OperationalError):
self.con.create_function("bla", -100, AggrSum)
def CheckAggrNoStep(self):
cur = self.con.cursor()
with self.assertRaises(AttributeError) as cm:
cur.execute("select nostep(t) from test")
self.assertEqual(str(cm.exception), "'AggrNoStep' object has no attribute 'step'")
def CheckAggrNoFinalize(self):
cur = self.con.cursor()
with self.assertRaises(sqlite.OperationalError) as cm:
cur.execute("select nofinalize(t) from test")
val = cur.fetchone()[0]
self.assertEqual(str(cm.exception), "user-defined aggregate's 'finalize' method raised error")
def CheckAggrExceptionInInit(self):
cur = self.con.cursor()
with self.assertRaises(sqlite.OperationalError) as cm:
cur.execute("select excInit(t) from test")
val = cur.fetchone()[0]
self.assertEqual(str(cm.exception), "user-defined aggregate's '__init__' method raised error")
def CheckAggrExceptionInStep(self):
cur = self.con.cursor()
with self.assertRaises(sqlite.OperationalError) as cm:
cur.execute("select excStep(t) from test")
val = cur.fetchone()[0]
self.assertEqual(str(cm.exception), "user-defined aggregate's 'step' method raised error")
def CheckAggrExceptionInFinalize(self):
cur = self.con.cursor()
with self.assertRaises(sqlite.OperationalError) as cm:
cur.execute("select excFinalize(t) from test")
val = cur.fetchone()[0]
self.assertEqual(str(cm.exception), "user-defined aggregate's 'finalize' method raised error")
def CheckAggrCheckParamStr(self):
cur = self.con.cursor()
cur.execute("select checkType('str', ?)", ("foo",))
val = cur.fetchone()[0]
self.assertEqual(val, 1)
def CheckAggrCheckParamInt(self):
cur = self.con.cursor()
cur.execute("select checkType('int', ?)", (42,))
val = cur.fetchone()[0]
self.assertEqual(val, 1)
def CheckAggrCheckParamsInt(self):
cur = self.con.cursor()
cur.execute("select checkTypes('int', ?, ?)", (42, 24))
val = cur.fetchone()[0]
self.assertEqual(val, 2)
def CheckAggrCheckParamFloat(self):
cur = self.con.cursor()
cur.execute("select checkType('float', ?)", (3.14,))
val = cur.fetchone()[0]
self.assertEqual(val, 1)
def CheckAggrCheckParamNone(self):
cur = self.con.cursor()
cur.execute("select checkType('None', ?)", (None,))
val = cur.fetchone()[0]
self.assertEqual(val, 1)
def CheckAggrCheckParamBlob(self):
cur = self.con.cursor()
cur.execute("select checkType('blob', ?)", (memoryview(b"blob"),))
val = cur.fetchone()[0]
self.assertEqual(val, 1)
def CheckAggrCheckAggrSum(self):
cur = self.con.cursor()
cur.execute("delete from test")
cur.executemany("insert into test(i) values (?)", [(10,), (20,), (30,)])
cur.execute("select mysum(i) from test")
val = cur.fetchone()[0]
self.assertEqual(val, 60)
class AuthorizerTests(unittest.TestCase):
@staticmethod
def authorizer_cb(action, arg1, arg2, dbname, source):
if action != sqlite.SQLITE_SELECT:
return sqlite.SQLITE_DENY
if arg2 == 'c2' or arg1 == 't2':
return sqlite.SQLITE_DENY
return sqlite.SQLITE_OK
def setUp(self):
self.con = sqlite.connect(":memory:")
self.con.executescript("""
create table t1 (c1, c2);
create table t2 (c1, c2);
insert into t1 (c1, c2) values (1, 2);
insert into t2 (c1, c2) values (4, 5);
""")
# For our security test:
self.con.execute("select c2 from t2")
self.con.set_authorizer(self.authorizer_cb)
def tearDown(self):
pass
def test_table_access(self):
with self.assertRaises(sqlite.DatabaseError) as cm:
self.con.execute("select * from t2")
self.assertIn('prohibited', str(cm.exception))
def test_column_access(self):
with self.assertRaises(sqlite.DatabaseError) as cm:
self.con.execute("select c2 from t1")
self.assertIn('prohibited', str(cm.exception))
class AuthorizerRaiseExceptionTests(AuthorizerTests):
@staticmethod
def authorizer_cb(action, arg1, arg2, dbname, source):
if action != sqlite.SQLITE_SELECT:
raise ValueError
if arg2 == 'c2' or arg1 == 't2':
raise ValueError
return sqlite.SQLITE_OK
class AuthorizerIllegalTypeTests(AuthorizerTests):
@staticmethod
def authorizer_cb(action, arg1, arg2, dbname, source):
if action != sqlite.SQLITE_SELECT:
return 0.0
if arg2 == 'c2' or arg1 == 't2':
return 0.0
return sqlite.SQLITE_OK
class AuthorizerLargeIntegerTests(AuthorizerTests):
@staticmethod
def authorizer_cb(action, arg1, arg2, dbname, source):
if action != sqlite.SQLITE_SELECT:
return 2**32
if arg2 == 'c2' or arg1 == 't2':
return 2**32
return sqlite.SQLITE_OK
def suite():
function_suite = unittest.makeSuite(FunctionTests, "Check")
aggregate_suite = unittest.makeSuite(AggregateTests, "Check")
authorizer_suite = unittest.makeSuite(AuthorizerTests)
return unittest.TestSuite((
function_suite,
aggregate_suite,
authorizer_suite,
unittest.makeSuite(AuthorizerRaiseExceptionTests),
unittest.makeSuite(AuthorizerIllegalTypeTests),
unittest.makeSuite(AuthorizerLargeIntegerTests),
))
def test():
runner = unittest.TextTestRunner()
runner.run(suite())
if __name__ == "__main__":
test()
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