| # pysqlite2/test/userfunctions.py: tests for user-defined functions and |
| # aggregates. |
| # |
| # Copyright (C) 2005-2007 Gerhard Häring <[email protected]> |
| # |
| # 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 contextlib |
| import functools |
| import io |
| import re |
| import sys |
| import unittest |
| import sqlite3 as sqlite |
| |
| from unittest.mock import Mock, patch |
| from test.support import bigmemtest, catch_unraisable_exception, gc_collect |
| |
| from test.test_sqlite3.test_dbapi import cx_limit |
| |
| |
| def with_tracebacks(exc, regex="", name=""): |
| """Convenience decorator for testing callback tracebacks.""" |
| def decorator(func): |
| _regex = re.compile(regex) if regex else None |
| @functools.wraps(func) |
| def wrapper(self, *args, **kwargs): |
| with catch_unraisable_exception() as cm: |
| # First, run the test with traceback enabled. |
| with check_tracebacks(self, cm, exc, _regex, name): |
| func(self, *args, **kwargs) |
| |
| # Then run the test with traceback disabled. |
| func(self, *args, **kwargs) |
| return wrapper |
| return decorator |
| |
| |
| @contextlib.contextmanager |
| def check_tracebacks(self, cm, exc, regex, obj_name): |
| """Convenience context manager for testing callback tracebacks.""" |
| sqlite.enable_callback_tracebacks(True) |
| try: |
| buf = io.StringIO() |
| with contextlib.redirect_stderr(buf): |
| yield |
| |
| self.assertEqual(cm.unraisable.exc_type, exc) |
| if regex: |
| msg = str(cm.unraisable.exc_value) |
| self.assertIsNotNone(regex.search(msg)) |
| if obj_name: |
| self.assertEqual(cm.unraisable.object.__name__, obj_name) |
| finally: |
| sqlite.enable_callback_tracebacks(False) |
| |
| |
| def func_returntext(): |
| return "foo" |
| def func_returntextwithnull(): |
| return "1\x002" |
| 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_memoryerror(): |
| raise MemoryError |
| def func_overflowerror(): |
| raise OverflowError |
| |
| 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 AggrText: |
| def __init__(self): |
| self.txt = "" |
| def step(self, txt): |
| self.txt = self.txt + txt |
| def finalize(self): |
| return self.txt |
| |
| |
| class FunctionTests(unittest.TestCase): |
| def setUp(self): |
| self.con = sqlite.connect(":memory:") |
| |
| self.con.create_function("returntext", 0, func_returntext) |
| self.con.create_function("returntextwithnull", 0, func_returntextwithnull) |
| 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("returnnan", 0, lambda: float("nan")) |
| self.con.create_function("returntoolargeint", 0, lambda: 1 << 65) |
| self.con.create_function("return_noncont_blob", 0, |
| lambda: memoryview(b"blob")[::2]) |
| self.con.create_function("raiseexception", 0, func_raiseexception) |
| self.con.create_function("memoryerror", 0, func_memoryerror) |
| self.con.create_function("overflowerror", 0, func_overflowerror) |
| |
| self.con.create_function("isblob", 1, lambda x: isinstance(x, bytes)) |
| self.con.create_function("isnone", 1, lambda x: x is None) |
| self.con.create_function("spam", -1, lambda *x: len(x)) |
| self.con.execute("create table test(t text)") |
| |
| def tearDown(self): |
| self.con.close() |
| |
| def test_func_error_on_create(self): |
| with self.assertRaises(sqlite.OperationalError): |
| self.con.create_function("bla", -100, lambda x: 2*x) |
| |
| def test_func_too_many_args(self): |
| category = sqlite.SQLITE_LIMIT_FUNCTION_ARG |
| msg = "too many arguments on function" |
| with cx_limit(self.con, category=category, limit=1): |
| self.con.execute("select abs(-1)"); |
| with self.assertRaisesRegex(sqlite.OperationalError, msg): |
| self.con.execute("select max(1, 2)"); |
| |
| def test_func_ref_count(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 test_func_return_text(self): |
| cur = self.con.cursor() |
| cur.execute("select returntext()") |
| val = cur.fetchone()[0] |
| self.assertEqual(type(val), str) |
| self.assertEqual(val, "foo") |
| |
| def test_func_return_text_with_null_char(self): |
| cur = self.con.cursor() |
| res = cur.execute("select returntextwithnull()").fetchone()[0] |
| self.assertEqual(type(res), str) |
| self.assertEqual(res, "1\x002") |
| |
| def test_func_return_unicode(self): |
| cur = self.con.cursor() |
| cur.execute("select returnunicode()") |
| val = cur.fetchone()[0] |
| self.assertEqual(type(val), str) |
| self.assertEqual(val, "bar") |
| |
| def test_func_return_int(self): |
| cur = self.con.cursor() |
| cur.execute("select returnint()") |
| val = cur.fetchone()[0] |
| self.assertEqual(type(val), int) |
| self.assertEqual(val, 42) |
| |
| def test_func_return_float(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 test_func_return_null(self): |
| cur = self.con.cursor() |
| cur.execute("select returnnull()") |
| val = cur.fetchone()[0] |
| self.assertEqual(type(val), type(None)) |
| self.assertEqual(val, None) |
| |
| def test_func_return_blob(self): |
| cur = self.con.cursor() |
| cur.execute("select returnblob()") |
| val = cur.fetchone()[0] |
| self.assertEqual(type(val), bytes) |
| self.assertEqual(val, b"blob") |
| |
| def test_func_return_long_long(self): |
| cur = self.con.cursor() |
| cur.execute("select returnlonglong()") |
| val = cur.fetchone()[0] |
| self.assertEqual(val, 1<<31) |
| |
| def test_func_return_nan(self): |
| cur = self.con.cursor() |
| cur.execute("select returnnan()") |
| self.assertIsNone(cur.fetchone()[0]) |
| |
| def test_func_return_too_large_int(self): |
| cur = self.con.cursor() |
| self.assertRaisesRegex(sqlite.DataError, "string or blob too big", |
| self.con.execute, "select returntoolargeint()") |
| |
| @with_tracebacks(ZeroDivisionError, name="func_raiseexception") |
| def test_func_exception(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') |
| |
| @with_tracebacks(MemoryError, name="func_memoryerror") |
| def test_func_memory_error(self): |
| cur = self.con.cursor() |
| with self.assertRaises(MemoryError): |
| cur.execute("select memoryerror()") |
| cur.fetchone() |
| |
| @with_tracebacks(OverflowError, name="func_overflowerror") |
| def test_func_overflow_error(self): |
| cur = self.con.cursor() |
| with self.assertRaises(sqlite.DataError): |
| cur.execute("select overflowerror()") |
| cur.fetchone() |
| |
| def test_any_arguments(self): |
| cur = self.con.cursor() |
| cur.execute("select spam(?, ?)", (1, 2)) |
| val = cur.fetchone()[0] |
| self.assertEqual(val, 2) |
| |
| def test_empty_blob(self): |
| cur = self.con.execute("select isblob(x'')") |
| self.assertTrue(cur.fetchone()[0]) |
| |
| def test_nan_float(self): |
| cur = self.con.execute("select isnone(?)", (float("nan"),)) |
| # SQLite has no concept of nan; it is converted to NULL |
| self.assertTrue(cur.fetchone()[0]) |
| |
| def test_too_large_int(self): |
| err = "Python int too large to convert to SQLite INTEGER" |
| self.assertRaisesRegex(OverflowError, err, self.con.execute, |
| "select spam(?)", (1 << 65,)) |
| |
| def test_non_contiguous_blob(self): |
| self.assertRaisesRegex(BufferError, |
| "underlying buffer is not C-contiguous", |
| self.con.execute, "select spam(?)", |
| (memoryview(b"blob")[::2],)) |
| |
| @with_tracebacks(BufferError, regex="buffer.*contiguous") |
| def test_return_non_contiguous_blob(self): |
| with self.assertRaises(sqlite.OperationalError): |
| cur = self.con.execute("select return_noncont_blob()") |
| cur.fetchone() |
| |
| def test_param_surrogates(self): |
| self.assertRaisesRegex(UnicodeEncodeError, "surrogates not allowed", |
| self.con.execute, "select spam(?)", |
| ("\ud803\ude6d",)) |
| |
| def test_func_params(self): |
| results = [] |
| def append_result(arg): |
| results.append((arg, type(arg))) |
| self.con.create_function("test_params", 1, append_result) |
| |
| dataset = [ |
| (42, int), |
| (-1, int), |
| (1234567890123456789, int), |
| (4611686018427387905, int), # 63-bit int with non-zero low bits |
| (3.14, float), |
| (float('inf'), float), |
| ("text", str), |
| ("1\x002", str), |
| ("\u02e2q\u02e1\u2071\u1d57\u1d49", str), |
| (b"blob", bytes), |
| (bytearray(range(2)), bytes), |
| (memoryview(b"blob"), bytes), |
| (None, type(None)), |
| ] |
| for val, _ in dataset: |
| cur = self.con.execute("select test_params(?)", (val,)) |
| cur.fetchone() |
| self.assertEqual(dataset, results) |
| |
| # Regarding deterministic functions: |
| # |
| # Between 3.8.3 and 3.15.0, deterministic functions were only used to |
| # optimize inner loops, so for those versions we can only test if the |
| # sqlite machinery has factored out a call or not. From 3.15.0 and onward, |
| # deterministic functions were permitted in WHERE clauses of partial |
| # indices, which allows testing based on syntax, iso. the query optimizer. |
| @unittest.skipIf(sqlite.sqlite_version_info < (3, 8, 3), "Requires SQLite 3.8.3 or higher") |
| def test_func_non_deterministic(self): |
| mock = Mock(return_value=None) |
| self.con.create_function("nondeterministic", 0, mock, deterministic=False) |
| if sqlite.sqlite_version_info < (3, 15, 0): |
| self.con.execute("select nondeterministic() = nondeterministic()") |
| self.assertEqual(mock.call_count, 2) |
| else: |
| with self.assertRaises(sqlite.OperationalError): |
| self.con.execute("create index t on test(t) where nondeterministic() is not null") |
| |
| @unittest.skipIf(sqlite.sqlite_version_info < (3, 8, 3), "Requires SQLite 3.8.3 or higher") |
| def test_func_deterministic(self): |
| mock = Mock(return_value=None) |
| self.con.create_function("deterministic", 0, mock, deterministic=True) |
| if sqlite.sqlite_version_info < (3, 15, 0): |
| self.con.execute("select deterministic() = deterministic()") |
| self.assertEqual(mock.call_count, 1) |
| else: |
| try: |
| self.con.execute("create index t on test(t) where deterministic() is not null") |
| except sqlite.OperationalError: |
| self.fail("Unexpected failure while creating partial index") |
| |
| @unittest.skipIf(sqlite.sqlite_version_info >= (3, 8, 3), "SQLite < 3.8.3 needed") |
| def test_func_deterministic_not_supported(self): |
| with self.assertRaises(sqlite.NotSupportedError): |
| self.con.create_function("deterministic", 0, int, deterministic=True) |
| |
| def test_func_deterministic_keyword_only(self): |
| with self.assertRaises(TypeError): |
| self.con.create_function("deterministic", 0, int, True) |
| |
| def test_function_destructor_via_gc(self): |
| # See bpo-44304: The destructor of the user function can |
| # crash if is called without the GIL from the gc functions |
| dest = sqlite.connect(':memory:') |
| def md5sum(t): |
| return |
| |
| dest.create_function("md5", 1, md5sum) |
| x = dest("create table lang (name, first_appeared)") |
| del md5sum, dest |
| |
| y = [x] |
| y.append(y) |
| |
| del x,y |
| gc_collect() |
| |
| @with_tracebacks(OverflowError) |
| def test_func_return_too_large_int(self): |
| cur = self.con.cursor() |
| for value in 2**63, -2**63-1, 2**64: |
| self.con.create_function("largeint", 0, lambda value=value: value) |
| with self.assertRaises(sqlite.DataError): |
| cur.execute("select largeint()") |
| |
| @with_tracebacks(UnicodeEncodeError, "surrogates not allowed", "chr") |
| def test_func_return_text_with_surrogates(self): |
| cur = self.con.cursor() |
| self.con.create_function("pychr", 1, chr) |
| for value in 0xd8ff, 0xdcff: |
| with self.assertRaises(sqlite.OperationalError): |
| cur.execute("select pychr(?)", (value,)) |
| |
| @unittest.skipUnless(sys.maxsize > 2**32, 'requires 64bit platform') |
| @bigmemtest(size=2**31, memuse=3, dry_run=False) |
| def test_func_return_too_large_text(self, size): |
| cur = self.con.cursor() |
| for size in 2**31-1, 2**31: |
| self.con.create_function("largetext", 0, lambda size=size: "b" * size) |
| with self.assertRaises(sqlite.DataError): |
| cur.execute("select largetext()") |
| |
| @unittest.skipUnless(sys.maxsize > 2**32, 'requires 64bit platform') |
| @bigmemtest(size=2**31, memuse=2, dry_run=False) |
| def test_func_return_too_large_blob(self, size): |
| cur = self.con.cursor() |
| for size in 2**31-1, 2**31: |
| self.con.create_function("largeblob", 0, lambda size=size: b"b" * size) |
| with self.assertRaises(sqlite.DataError): |
| cur.execute("select largeblob()") |
| |
| def test_func_return_illegal_value(self): |
| self.con.create_function("badreturn", 0, lambda: self) |
| msg = "user-defined function raised exception" |
| self.assertRaisesRegex(sqlite.OperationalError, msg, |
| self.con.execute, "select badreturn()") |
| |
| |
| class WindowSumInt: |
| def __init__(self): |
| self.count = 0 |
| |
| def step(self, value): |
| self.count += value |
| |
| def value(self): |
| return self.count |
| |
| def inverse(self, value): |
| self.count -= value |
| |
| def finalize(self): |
| return self.count |
| |
| class BadWindow(Exception): |
| pass |
| |
| |
| @unittest.skipIf(sqlite.sqlite_version_info < (3, 25, 0), |
| "Requires SQLite 3.25.0 or newer") |
| class WindowFunctionTests(unittest.TestCase): |
| def setUp(self): |
| self.con = sqlite.connect(":memory:") |
| self.cur = self.con.cursor() |
| |
| # Test case taken from https://www.sqlite.org/windowfunctions.html#udfwinfunc |
| values = [ |
| ("a", 4), |
| ("b", 5), |
| ("c", 3), |
| ("d", 8), |
| ("e", 1), |
| ] |
| with self.con: |
| self.con.execute("create table test(x, y)") |
| self.con.executemany("insert into test values(?, ?)", values) |
| self.expected = [ |
| ("a", 9), |
| ("b", 12), |
| ("c", 16), |
| ("d", 12), |
| ("e", 9), |
| ] |
| self.query = """ |
| select x, %s(y) over ( |
| order by x rows between 1 preceding and 1 following |
| ) as sum_y |
| from test order by x |
| """ |
| self.con.create_window_function("sumint", 1, WindowSumInt) |
| |
| def test_win_sum_int(self): |
| self.cur.execute(self.query % "sumint") |
| self.assertEqual(self.cur.fetchall(), self.expected) |
| |
| def test_win_error_on_create(self): |
| self.assertRaises(sqlite.ProgrammingError, |
| 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 = f"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"),)) |
| |
| 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.cur.close() |
| #self.con.close() |
| pass |
| |
| def test_aggr_error_on_create(self): |
| with self.assertRaises(sqlite.OperationalError): |
| self.con.create_function("bla", -100, AggrSum) |
| |
| @with_tracebacks(AttributeError, name="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, name="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, name="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, name="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) |
| |
| |
| 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)) |
| |
| def test_clear_authorizer(self): |
| self.con.set_authorizer(None) |
| self.con.execute("select * from t2") |
| self.con.execute("select c2 from t1") |
| |
| |
| 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, name="authorizer_cb") |
| def test_table_access(self): |
| super().test_table_access() |
| |
| @with_tracebacks(ValueError, name="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() |
