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3a2e7aacf6
Consistently raise ProgrammingError if the user tries to create an UDF with an invalid number of parameters.
852 lines
30 KiB
Python
852 lines
30 KiB
Python
# pysqlite2/test/userfunctions.py: tests for user-defined functions and
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# aggregates.
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#
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# Copyright (C) 2005-2007 Gerhard Häring <gh@ghaering.de>
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#
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# This file is part of pysqlite.
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#
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# This software is provided 'as-is', without any express or implied
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# warranty. In no event will the authors be held liable for any damages
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# arising from the use of this software.
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#
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# Permission is granted to anyone to use this software for any purpose,
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# including commercial applications, and to alter it and redistribute it
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# freely, subject to the following restrictions:
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#
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# 1. The origin of this software must not be misrepresented; you must not
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# claim that you wrote the original software. If you use this software
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# in a product, an acknowledgment in the product documentation would be
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# appreciated but is not required.
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# 2. Altered source versions must be plainly marked as such, and must not be
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# misrepresented as being the original software.
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# 3. This notice may not be removed or altered from any source distribution.
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import sys
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import unittest
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import sqlite3 as sqlite
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from unittest.mock import Mock, patch
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from test.support import bigmemtest, gc_collect
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from .util import cx_limit, memory_database
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from .util import with_tracebacks
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def func_returntext():
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return "foo"
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def func_returntextwithnull():
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return "1\x002"
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def func_returnunicode():
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return "bar"
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def func_returnint():
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return 42
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def func_returnfloat():
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return 3.14
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def func_returnnull():
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return None
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def func_returnblob():
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return b"blob"
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def func_returnlonglong():
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return 1<<31
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def func_raiseexception():
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5/0
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def func_memoryerror():
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raise MemoryError
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def func_overflowerror():
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raise OverflowError
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class AggrNoStep:
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def __init__(self):
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pass
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def finalize(self):
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return 1
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class AggrNoFinalize:
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def __init__(self):
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pass
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def step(self, x):
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pass
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class AggrExceptionInInit:
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def __init__(self):
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5/0
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def step(self, x):
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pass
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def finalize(self):
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pass
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class AggrExceptionInStep:
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def __init__(self):
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pass
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def step(self, x):
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5/0
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def finalize(self):
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return 42
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class AggrExceptionInFinalize:
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def __init__(self):
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pass
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def step(self, x):
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pass
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def finalize(self):
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5/0
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class AggrCheckType:
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def __init__(self):
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self.val = None
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def step(self, whichType, val):
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theType = {"str": str, "int": int, "float": float, "None": type(None),
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"blob": bytes}
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self.val = int(theType[whichType] is type(val))
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def finalize(self):
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return self.val
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class AggrCheckTypes:
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def __init__(self):
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self.val = 0
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def step(self, whichType, *vals):
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theType = {"str": str, "int": int, "float": float, "None": type(None),
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"blob": bytes}
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for val in vals:
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self.val += int(theType[whichType] is type(val))
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def finalize(self):
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return self.val
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class AggrSum:
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def __init__(self):
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self.val = 0.0
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def step(self, val):
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self.val += val
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def finalize(self):
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return self.val
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class AggrText:
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def __init__(self):
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self.txt = ""
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def step(self, txt):
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self.txt = self.txt + txt
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def finalize(self):
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return self.txt
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class FunctionTests(unittest.TestCase):
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def setUp(self):
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self.con = sqlite.connect(":memory:")
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self.con.create_function("returntext", 0, func_returntext)
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self.con.create_function("returntextwithnull", 0, func_returntextwithnull)
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self.con.create_function("returnunicode", 0, func_returnunicode)
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self.con.create_function("returnint", 0, func_returnint)
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self.con.create_function("returnfloat", 0, func_returnfloat)
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self.con.create_function("returnnull", 0, func_returnnull)
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self.con.create_function("returnblob", 0, func_returnblob)
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self.con.create_function("returnlonglong", 0, func_returnlonglong)
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self.con.create_function("returnnan", 0, lambda: float("nan"))
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self.con.create_function("return_noncont_blob", 0,
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lambda: memoryview(b"blob")[::2])
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self.con.create_function("raiseexception", 0, func_raiseexception)
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self.con.create_function("memoryerror", 0, func_memoryerror)
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self.con.create_function("overflowerror", 0, func_overflowerror)
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self.con.create_function("isblob", 1, lambda x: isinstance(x, bytes))
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self.con.create_function("isnone", 1, lambda x: x is None)
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self.con.create_function("spam", -1, lambda *x: len(x))
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self.con.execute("create table test(t text)")
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def tearDown(self):
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self.con.close()
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def test_func_error_on_create(self):
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with self.assertRaisesRegex(sqlite.ProgrammingError, "not -100"):
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self.con.create_function("bla", -100, lambda x: 2*x)
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def test_func_too_many_args(self):
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category = sqlite.SQLITE_LIMIT_FUNCTION_ARG
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msg = "too many arguments on function"
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with cx_limit(self.con, category=category, limit=1):
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self.con.execute("select abs(-1)");
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with self.assertRaisesRegex(sqlite.OperationalError, msg):
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self.con.execute("select max(1, 2)");
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def test_func_ref_count(self):
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def getfunc():
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def f():
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return 1
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return f
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f = getfunc()
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globals()["foo"] = f
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# self.con.create_function("reftest", 0, getfunc())
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self.con.create_function("reftest", 0, f)
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cur = self.con.cursor()
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cur.execute("select reftest()")
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def test_func_return_text(self):
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cur = self.con.cursor()
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cur.execute("select returntext()")
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val = cur.fetchone()[0]
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self.assertEqual(type(val), str)
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self.assertEqual(val, "foo")
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def test_func_return_text_with_null_char(self):
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cur = self.con.cursor()
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res = cur.execute("select returntextwithnull()").fetchone()[0]
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self.assertEqual(type(res), str)
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self.assertEqual(res, "1\x002")
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def test_func_return_unicode(self):
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cur = self.con.cursor()
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cur.execute("select returnunicode()")
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val = cur.fetchone()[0]
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self.assertEqual(type(val), str)
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self.assertEqual(val, "bar")
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def test_func_return_int(self):
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cur = self.con.cursor()
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cur.execute("select returnint()")
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val = cur.fetchone()[0]
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self.assertEqual(type(val), int)
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self.assertEqual(val, 42)
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def test_func_return_float(self):
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cur = self.con.cursor()
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cur.execute("select returnfloat()")
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val = cur.fetchone()[0]
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self.assertEqual(type(val), float)
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if val < 3.139 or val > 3.141:
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self.fail("wrong value")
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def test_func_return_null(self):
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cur = self.con.cursor()
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cur.execute("select returnnull()")
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val = cur.fetchone()[0]
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self.assertEqual(type(val), type(None))
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self.assertEqual(val, None)
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def test_func_return_blob(self):
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cur = self.con.cursor()
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cur.execute("select returnblob()")
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val = cur.fetchone()[0]
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self.assertEqual(type(val), bytes)
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self.assertEqual(val, b"blob")
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def test_func_return_long_long(self):
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cur = self.con.cursor()
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cur.execute("select returnlonglong()")
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val = cur.fetchone()[0]
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self.assertEqual(val, 1<<31)
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def test_func_return_nan(self):
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cur = self.con.cursor()
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cur.execute("select returnnan()")
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self.assertIsNone(cur.fetchone()[0])
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@with_tracebacks(ZeroDivisionError, msg_regex="func_raiseexception")
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def test_func_exception(self):
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cur = self.con.cursor()
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with self.assertRaises(sqlite.OperationalError) as cm:
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cur.execute("select raiseexception()")
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cur.fetchone()
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self.assertEqual(str(cm.exception), 'user-defined function raised exception')
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@with_tracebacks(MemoryError, msg_regex="func_memoryerror")
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def test_func_memory_error(self):
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cur = self.con.cursor()
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with self.assertRaises(MemoryError):
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cur.execute("select memoryerror()")
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cur.fetchone()
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@with_tracebacks(OverflowError, msg_regex="func_overflowerror")
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def test_func_overflow_error(self):
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cur = self.con.cursor()
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with self.assertRaises(sqlite.DataError):
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cur.execute("select overflowerror()")
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cur.fetchone()
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def test_any_arguments(self):
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cur = self.con.cursor()
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cur.execute("select spam(?, ?)", (1, 2))
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val = cur.fetchone()[0]
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self.assertEqual(val, 2)
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def test_empty_blob(self):
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cur = self.con.execute("select isblob(x'')")
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self.assertTrue(cur.fetchone()[0])
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def test_nan_float(self):
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cur = self.con.execute("select isnone(?)", (float("nan"),))
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# SQLite has no concept of nan; it is converted to NULL
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self.assertTrue(cur.fetchone()[0])
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def test_too_large_int(self):
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err = "Python int too large to convert to SQLite INTEGER"
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self.assertRaisesRegex(OverflowError, err, self.con.execute,
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"select spam(?)", (1 << 65,))
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def test_non_contiguous_blob(self):
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self.assertRaisesRegex(BufferError,
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"underlying buffer is not C-contiguous",
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self.con.execute, "select spam(?)",
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(memoryview(b"blob")[::2],))
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@with_tracebacks(BufferError, regex="buffer.*contiguous")
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def test_return_non_contiguous_blob(self):
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with self.assertRaises(sqlite.OperationalError):
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cur = self.con.execute("select return_noncont_blob()")
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cur.fetchone()
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def test_param_surrogates(self):
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self.assertRaisesRegex(UnicodeEncodeError, "surrogates not allowed",
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self.con.execute, "select spam(?)",
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("\ud803\ude6d",))
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def test_func_params(self):
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results = []
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def append_result(arg):
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results.append((arg, type(arg)))
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self.con.create_function("test_params", 1, append_result)
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dataset = [
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(42, int),
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(-1, int),
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(1234567890123456789, int),
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(4611686018427387905, int), # 63-bit int with non-zero low bits
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(3.14, float),
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(float('inf'), float),
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("text", str),
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("1\x002", str),
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("\u02e2q\u02e1\u2071\u1d57\u1d49", str),
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(b"blob", bytes),
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(bytearray(range(2)), bytes),
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(memoryview(b"blob"), bytes),
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(None, type(None)),
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]
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for val, _ in dataset:
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cur = self.con.execute("select test_params(?)", (val,))
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cur.fetchone()
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self.assertEqual(dataset, results)
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# Regarding deterministic functions:
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#
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# Between 3.8.3 and 3.15.0, deterministic functions were only used to
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# optimize inner loops. From 3.15.0 and onward, deterministic functions
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# were permitted in WHERE clauses of partial indices, which allows testing
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# based on syntax, iso. the query optimizer.
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def test_func_non_deterministic(self):
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mock = Mock(return_value=None)
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self.con.create_function("nondeterministic", 0, mock, deterministic=False)
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with self.assertRaises(sqlite.OperationalError):
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self.con.execute("create index t on test(t) where nondeterministic() is not null")
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def test_func_deterministic(self):
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mock = Mock(return_value=None)
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self.con.create_function("deterministic", 0, mock, deterministic=True)
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try:
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self.con.execute("create index t on test(t) where deterministic() is not null")
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except sqlite.OperationalError:
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self.fail("Unexpected failure while creating partial index")
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def test_func_deterministic_keyword_only(self):
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with self.assertRaises(TypeError):
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self.con.create_function("deterministic", 0, int, True)
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def test_function_destructor_via_gc(self):
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# See bpo-44304: The destructor of the user function can
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# crash if is called without the GIL from the gc functions
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def md5sum(t):
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return
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with memory_database() as dest:
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dest.create_function("md5", 1, md5sum)
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x = dest("create table lang (name, first_appeared)")
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del md5sum, dest
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y = [x]
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y.append(y)
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del x,y
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gc_collect()
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@with_tracebacks(OverflowError)
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def test_func_return_too_large_int(self):
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cur = self.con.cursor()
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msg = "string or blob too big"
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for value in 2**63, -2**63-1, 2**64:
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self.con.create_function("largeint", 0, lambda value=value: value)
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with self.assertRaisesRegex(sqlite.DataError, msg):
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cur.execute("select largeint()")
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@with_tracebacks(UnicodeEncodeError, "surrogates not allowed")
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def test_func_return_text_with_surrogates(self):
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cur = self.con.cursor()
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self.con.create_function("pychr", 1, chr)
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for value in 0xd8ff, 0xdcff:
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with self.assertRaises(sqlite.OperationalError):
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cur.execute("select pychr(?)", (value,))
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@unittest.skipUnless(sys.maxsize > 2**32, 'requires 64bit platform')
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@bigmemtest(size=2**31, memuse=3, dry_run=False)
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def test_func_return_too_large_text(self, size):
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cur = self.con.cursor()
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for size in 2**31-1, 2**31:
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self.con.create_function("largetext", 0, lambda size=size: "b" * size)
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with self.assertRaises(sqlite.DataError):
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cur.execute("select largetext()")
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@unittest.skipUnless(sys.maxsize > 2**32, 'requires 64bit platform')
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@bigmemtest(size=2**31, memuse=2, dry_run=False)
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def test_func_return_too_large_blob(self, size):
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cur = self.con.cursor()
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for size in 2**31-1, 2**31:
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self.con.create_function("largeblob", 0, lambda size=size: b"b" * size)
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with self.assertRaises(sqlite.DataError):
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cur.execute("select largeblob()")
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def test_func_return_illegal_value(self):
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self.con.create_function("badreturn", 0, lambda: self)
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msg = "user-defined function raised exception"
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self.assertRaisesRegex(sqlite.OperationalError, msg,
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self.con.execute, "select badreturn()")
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def test_func_keyword_args(self):
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regex = (
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r"Passing keyword arguments 'name', 'narg' and 'func' to "
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r"_sqlite3.Connection.create_function\(\) is deprecated. "
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r"Parameters 'name', 'narg' and 'func' will become "
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r"positional-only in Python 3.15."
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)
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def noop():
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return None
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with self.assertWarnsRegex(DeprecationWarning, regex) as cm:
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self.con.create_function("noop", 0, func=noop)
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self.assertEqual(cm.filename, __file__)
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with self.assertWarnsRegex(DeprecationWarning, regex) as cm:
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self.con.create_function("noop", narg=0, func=noop)
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self.assertEqual(cm.filename, __file__)
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with self.assertWarnsRegex(DeprecationWarning, regex) as cm:
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self.con.create_function(name="noop", narg=0, func=noop)
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self.assertEqual(cm.filename, __file__)
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class WindowSumInt:
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def __init__(self):
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self.count = 0
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def step(self, value):
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self.count += value
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def value(self):
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return self.count
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def inverse(self, value):
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self.count -= value
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def finalize(self):
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return self.count
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class BadWindow(Exception):
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pass
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@unittest.skipIf(sqlite.sqlite_version_info < (3, 25, 0),
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"Requires SQLite 3.25.0 or newer")
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class WindowFunctionTests(unittest.TestCase):
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def setUp(self):
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self.con = sqlite.connect(":memory:")
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self.cur = self.con.cursor()
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# Test case taken from https://www.sqlite.org/windowfunctions.html#udfwinfunc
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values = [
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("a", 4),
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("b", 5),
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("c", 3),
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("d", 8),
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("e", 1),
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]
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with self.con:
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self.con.execute("create table test(x, y)")
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self.con.executemany("insert into test values(?, ?)", values)
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self.expected = [
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("a", 9),
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("b", 12),
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("c", 16),
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("d", 12),
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("e", 9),
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]
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self.query = """
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select x, %s(y) over (
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order by x rows between 1 preceding and 1 following
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) as sum_y
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from test order by x
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"""
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self.con.create_window_function("sumint", 1, WindowSumInt)
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def tearDown(self):
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self.cur.close()
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self.con.close()
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def test_win_sum_int(self):
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self.cur.execute(self.query % "sumint")
|
|
self.assertEqual(self.cur.fetchall(), self.expected)
|
|
|
|
def test_win_error_on_create(self):
|
|
with self.assertRaisesRegex(sqlite.ProgrammingError, "not -100"):
|
|
self.con.create_window_function("shouldfail", -100, WindowSumInt)
|
|
|
|
@with_tracebacks(BadWindow)
|
|
def test_win_exception_in_method(self):
|
|
for meth in "__init__", "step", "value", "inverse":
|
|
with self.subTest(meth=meth):
|
|
with patch.object(WindowSumInt, meth, side_effect=BadWindow):
|
|
name = f"exc_{meth}"
|
|
self.con.create_window_function(name, 1, WindowSumInt)
|
|
msg = f"'{meth}' method raised error"
|
|
with self.assertRaisesRegex(sqlite.OperationalError, msg):
|
|
self.cur.execute(self.query % name)
|
|
self.cur.fetchall()
|
|
|
|
@with_tracebacks(BadWindow)
|
|
def test_win_exception_in_finalize(self):
|
|
# Note: SQLite does not (as of version 3.38.0) propagate finalize
|
|
# callback errors to sqlite3_step(); this implies that OperationalError
|
|
# is _not_ raised.
|
|
with patch.object(WindowSumInt, "finalize", side_effect=BadWindow):
|
|
name = "exception_in_finalize"
|
|
self.con.create_window_function(name, 1, WindowSumInt)
|
|
self.cur.execute(self.query % name)
|
|
self.cur.fetchall()
|
|
|
|
@with_tracebacks(AttributeError)
|
|
def test_win_missing_method(self):
|
|
class MissingValue:
|
|
def step(self, x): pass
|
|
def inverse(self, x): pass
|
|
def finalize(self): return 42
|
|
|
|
class MissingInverse:
|
|
def step(self, x): pass
|
|
def value(self): return 42
|
|
def finalize(self): return 42
|
|
|
|
class MissingStep:
|
|
def value(self): return 42
|
|
def inverse(self, x): pass
|
|
def finalize(self): return 42
|
|
|
|
dataset = (
|
|
("step", MissingStep),
|
|
("value", MissingValue),
|
|
("inverse", MissingInverse),
|
|
)
|
|
for meth, cls in dataset:
|
|
with self.subTest(meth=meth, cls=cls):
|
|
name = f"exc_{meth}"
|
|
self.con.create_window_function(name, 1, cls)
|
|
with self.assertRaisesRegex(sqlite.OperationalError,
|
|
f"'{meth}' method not defined"):
|
|
self.cur.execute(self.query % name)
|
|
self.cur.fetchall()
|
|
|
|
@with_tracebacks(AttributeError)
|
|
def test_win_missing_finalize(self):
|
|
# Note: SQLite does not (as of version 3.38.0) propagate finalize
|
|
# callback errors to sqlite3_step(); this implies that OperationalError
|
|
# is _not_ raised.
|
|
class MissingFinalize:
|
|
def step(self, x): pass
|
|
def value(self): return 42
|
|
def inverse(self, x): pass
|
|
|
|
name = "missing_finalize"
|
|
self.con.create_window_function(name, 1, MissingFinalize)
|
|
self.cur.execute(self.query % name)
|
|
self.cur.fetchall()
|
|
|
|
def test_win_clear_function(self):
|
|
self.con.create_window_function("sumint", 1, None)
|
|
self.assertRaises(sqlite.OperationalError, self.cur.execute,
|
|
self.query % "sumint")
|
|
|
|
def test_win_redefine_function(self):
|
|
# Redefine WindowSumInt; adjust the expected results accordingly.
|
|
class Redefined(WindowSumInt):
|
|
def step(self, value): self.count += value * 2
|
|
def inverse(self, value): self.count -= value * 2
|
|
expected = [(v[0], v[1]*2) for v in self.expected]
|
|
|
|
self.con.create_window_function("sumint", 1, Redefined)
|
|
self.cur.execute(self.query % "sumint")
|
|
self.assertEqual(self.cur.fetchall(), expected)
|
|
|
|
def test_win_error_value_return(self):
|
|
class ErrorValueReturn:
|
|
def __init__(self): pass
|
|
def step(self, x): pass
|
|
def value(self): return 1 << 65
|
|
|
|
self.con.create_window_function("err_val_ret", 1, ErrorValueReturn)
|
|
self.assertRaisesRegex(sqlite.DataError, "string or blob too big",
|
|
self.cur.execute, self.query % "err_val_ret")
|
|
|
|
|
|
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"),))
|
|
cur.close()
|
|
|
|
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)
|
|
self.con.create_aggregate("aggtxt", 1, AggrText)
|
|
|
|
def tearDown(self):
|
|
self.con.close()
|
|
|
|
def test_aggr_error_on_create(self):
|
|
with self.assertRaisesRegex(sqlite.ProgrammingError, "not -100"):
|
|
self.con.create_function("bla", -100, AggrSum)
|
|
|
|
@with_tracebacks(AttributeError, msg_regex="AggrNoStep")
|
|
def test_aggr_no_step(self):
|
|
cur = self.con.cursor()
|
|
with self.assertRaises(sqlite.OperationalError) as cm:
|
|
cur.execute("select nostep(t) from test")
|
|
self.assertEqual(str(cm.exception),
|
|
"user-defined aggregate's 'step' method not defined")
|
|
|
|
def test_aggr_no_finalize(self):
|
|
cur = self.con.cursor()
|
|
msg = "user-defined aggregate's 'finalize' method not defined"
|
|
with self.assertRaisesRegex(sqlite.OperationalError, msg):
|
|
cur.execute("select nofinalize(t) from test")
|
|
val = cur.fetchone()[0]
|
|
|
|
@with_tracebacks(ZeroDivisionError, msg_regex="AggrExceptionInInit")
|
|
def test_aggr_exception_in_init(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")
|
|
|
|
@with_tracebacks(ZeroDivisionError, msg_regex="AggrExceptionInStep")
|
|
def test_aggr_exception_in_step(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")
|
|
|
|
@with_tracebacks(ZeroDivisionError, msg_regex="AggrExceptionInFinalize")
|
|
def test_aggr_exception_in_finalize(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 test_aggr_check_param_str(self):
|
|
cur = self.con.cursor()
|
|
cur.execute("select checkTypes('str', ?, ?)", ("foo", str()))
|
|
val = cur.fetchone()[0]
|
|
self.assertEqual(val, 2)
|
|
|
|
def test_aggr_check_param_int(self):
|
|
cur = self.con.cursor()
|
|
cur.execute("select checkType('int', ?)", (42,))
|
|
val = cur.fetchone()[0]
|
|
self.assertEqual(val, 1)
|
|
|
|
def test_aggr_check_params_int(self):
|
|
cur = self.con.cursor()
|
|
cur.execute("select checkTypes('int', ?, ?)", (42, 24))
|
|
val = cur.fetchone()[0]
|
|
self.assertEqual(val, 2)
|
|
|
|
def test_aggr_check_param_float(self):
|
|
cur = self.con.cursor()
|
|
cur.execute("select checkType('float', ?)", (3.14,))
|
|
val = cur.fetchone()[0]
|
|
self.assertEqual(val, 1)
|
|
|
|
def test_aggr_check_param_none(self):
|
|
cur = self.con.cursor()
|
|
cur.execute("select checkType('None', ?)", (None,))
|
|
val = cur.fetchone()[0]
|
|
self.assertEqual(val, 1)
|
|
|
|
def test_aggr_check_param_blob(self):
|
|
cur = self.con.cursor()
|
|
cur.execute("select checkType('blob', ?)", (memoryview(b"blob"),))
|
|
val = cur.fetchone()[0]
|
|
self.assertEqual(val, 1)
|
|
|
|
def test_aggr_check_aggr_sum(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)
|
|
|
|
def test_aggr_no_match(self):
|
|
cur = self.con.execute("select mysum(i) from (select 1 as i) where i == 0")
|
|
val = cur.fetchone()[0]
|
|
self.assertIsNone(val)
|
|
|
|
def test_aggr_text(self):
|
|
cur = self.con.cursor()
|
|
for txt in ["foo", "1\x002"]:
|
|
with self.subTest(txt=txt):
|
|
cur.execute("select aggtxt(?) from test", (txt,))
|
|
val = cur.fetchone()[0]
|
|
self.assertEqual(val, txt)
|
|
|
|
def test_agg_keyword_args(self):
|
|
regex = (
|
|
r"Passing keyword arguments 'name', 'n_arg' and 'aggregate_class' to "
|
|
r"_sqlite3.Connection.create_aggregate\(\) is deprecated. "
|
|
r"Parameters 'name', 'n_arg' and 'aggregate_class' will become "
|
|
r"positional-only in Python 3.15."
|
|
)
|
|
|
|
with self.assertWarnsRegex(DeprecationWarning, regex) as cm:
|
|
self.con.create_aggregate("test", 1, aggregate_class=AggrText)
|
|
self.assertEqual(cm.filename, __file__)
|
|
|
|
with self.assertWarnsRegex(DeprecationWarning, regex) as cm:
|
|
self.con.create_aggregate("test", n_arg=1, aggregate_class=AggrText)
|
|
self.assertEqual(cm.filename, __file__)
|
|
|
|
with self.assertWarnsRegex(DeprecationWarning, regex) as cm:
|
|
self.con.create_aggregate(name="test", n_arg=0,
|
|
aggregate_class=AggrText)
|
|
self.assertEqual(cm.filename, __file__)
|
|
|
|
|
|
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):
|
|
self.con.close()
|
|
|
|
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))
|
|
|
|
def test_clear_authorizer(self):
|
|
self.con.set_authorizer(None)
|
|
self.con.execute("select * from t2")
|
|
self.con.execute("select c2 from t1")
|
|
|
|
def test_authorizer_keyword_args(self):
|
|
regex = (
|
|
r"Passing keyword argument 'authorizer_callback' to "
|
|
r"_sqlite3.Connection.set_authorizer\(\) is deprecated. "
|
|
r"Parameter 'authorizer_callback' will become positional-only in "
|
|
r"Python 3.15."
|
|
)
|
|
|
|
with self.assertWarnsRegex(DeprecationWarning, regex) as cm:
|
|
self.con.set_authorizer(authorizer_callback=lambda: None)
|
|
self.assertEqual(cm.filename, __file__)
|
|
|
|
|
|
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
|
|
|
|
@with_tracebacks(ValueError, msg_regex="authorizer_cb")
|
|
def test_table_access(self):
|
|
super().test_table_access()
|
|
|
|
@with_tracebacks(ValueError, msg_regex="authorizer_cb")
|
|
def test_column_access(self):
|
|
super().test_table_access()
|
|
|
|
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
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|