gh-111495: Add tests for PyList C API#111562

rawwar · 2023-10-31T16:49:28Z

Adding tests for PyList C API - Issue #111495

Issue: Add more C API tests #111495

Signed-off-by: kalyanr <kalyan.ben10@live.com>

…o kalyan/test-capi-list Signed-off-by: kalyanr <kalyan.ben10@live.com>

Lib/test/test_capi/test_list.py

Modules/_testcapi/list.c

Lib/test/test_capi/test_list.py

…i-list Signed-off-by: kalyanr <kalyan.ben10@live.com>

rawwar · 2023-11-01T07:46:42Z

@serhiy-storchaka , Is adding {NULL}, to test_methods[] necessary? yesterday, i was able to run make without any issues. Today, after taking the pull from main, its been failing. below are the details

static PyMethodDef test_methods[] ={{"list_check", list_check, METH_O},{"list_check_exact", list_check_exact, METH_O},{"list_new", list_new, METH_O},{"list_size", list_size, METH_O}, };

Fails with

(base) kalyan@rawwar:~/oss/python-projects/cpython$ make gcc -fno-strict-overflow -Wsign-compare -DNDEBUG -g -O3 -Wall -std=c11 -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden -I./Include/internal -I./Include/internal/mimalloc -I. -I./Include -fPIC -c ./Modules/_testcapi/list.c -o Modules/_testcapi/list.o gcc -shared Modules/_testcapimodule.o Modules/_testcapi/vectorcall.o Modules/_testcapi/vectorcall_limited.o Modules/_testcapi/heaptype.o Modules/_testcapi/abstract.o Modules/_testcapi/bytearray.o Modules/_testcapi/bytes.o Modules/_testcapi/unicode.o Modules/_testcapi/dict.o Modules/_testcapi/set.o Modules/_testcapi/list.o Modules/_testcapi/tuple.o Modules/_testcapi/getargs.o Modules/_testcapi/datetime.o Modules/_testcapi/docstring.o Modules/_testcapi/mem.o Modules/_testcapi/watchers.o Modules/_testcapi/long.o Modules/_testcapi/float.o Modules/_testcapi/complex.o Modules/_testcapi/numbers.o Modules/_testcapi/structmember.o Modules/_testcapi/exceptions.o Modules/_testcapi/code.o Modules/_testcapi/buffer.o Modules/_testcapi/pyatomic.o Modules/_testcapi/pyos.o Modules/_testcapi/file.o Modules/_testcapi/codec.o Modules/_testcapi/immortal.o Modules/_testcapi/heaptype_relative.o Modules/_testcapi/gc.o Modules/_testcapi/sys.o -o Modules/_testcapi.cpython-313-x86_64-linux-gnu.so [ERROR] Importing extension '_testcapi' failed! Traceback (most recent call last): File "/home/kalyan/oss/python-projects/cpython/./Tools/build/check_extension_modules.py", line 412, in check_module_import bootstrap_load(spec) File "<frozen importlib._bootstrap>", line 960, in _load File "<frozen importlib._bootstrap>", line 915, in _load_unlocked File "<frozen importlib._bootstrap>", line 813, in module_from_spec File "<frozen importlib._bootstrap_external>", line 1302, in create_module File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed ValueError: module functions cannot set METH_CLASS or METH_STATIC Traceback (most recent call last): File "/home/kalyan/oss/python-projects/cpython/./Tools/build/check_extension_modules.py", line 483, in <module> main() File "/home/kalyan/oss/python-projects/cpython/./Tools/build/check_extension_modules.py", line 474, in main checker.check() File "/home/kalyan/oss/python-projects/cpython/./Tools/build/check_extension_modules.py", line 171, in check self.check_module_import(modinfo) File "/home/kalyan/oss/python-projects/cpython/./Tools/build/check_extension_modules.py", line 412, in check_module_import bootstrap_load(spec) File "<frozen importlib._bootstrap>", line 960, in _load File "<frozen importlib._bootstrap>", line 915, in _load_unlocked File "<frozen importlib._bootstrap>", line 813, in module_from_spec File "<frozen importlib._bootstrap_external>", line 1302, in create_module File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed ValueError: module functions cannot set METH_CLASS or METH_STATIC make: *** [Makefile:1177: checksharedmods] Error 1

But, when I include {NULL} like below, I am able to run make without any issues:

static PyMethodDef test_methods[] ={{"list_check", list_check, METH_O},{"list_check_exact", list_check_exact, METH_O},{"list_new", list_new, METH_O},{"list_size", list_size, METH_O},{NULL}, };

Signed-off-by: kalyanr <kalyan.ben10@live.com>

vstinner

Oh! I wrote a very similar PR yesterday! I have a few more tests.

serhiy-storchaka

See also #111582. It would be nice if you with @vstinner unite your works.

Lib/test/test_capi/test_list.py

serhiy-storchaka · 2023-11-01T09:54:54Z

Lib/test/test_capi/test_list.py

+lst= [1, 2, NULL]
+self.assertEqual(getitem(lst, 0), 1)
+self.assertRaises(IndexError, getitem, lst, -1)
+self.assertRaises(IndexError, getitem, lst, 10)


Add tests for index equal to the size of the list, PY_SSIZE_T_MIN, PY_SSIZE_T_MAX (imported from _testcapi).
All functions that have Py_ssize_t parameter should be tested with the following values: 0, size-1, -1, size, PY_SSIZE_T_MIN, PY_SSIZE_T_MAX.

For methods like slice, they accept multiple Py_ssize_t parameters. Should each of these parameters be tested with the values you mentioned?

Lib/test/test_capi/test_list.py

Modules/_testcapi/list.c

Signed-off-by: kalyanr <kalyan.ben10@live.com>

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

rawwar · 2023-11-01T10:12:04Z

@vstinner , What can we do now? I'm not sure If I should continue working on this PR? Although, I also added tests for Py_LIMITED_API ones as well.
I am also planning on contributing tests for PyTuple. let me know if I can go ahead with that

Signed-off-by: kalyanr <kalyan.ben10@live.com>

vstinner · 2023-11-08T14:51:55Z

Modules/_testcapi/list.c

+ }
+NULLABLE(obj);
+NULLABLE(value);
+RETURN_INT(PyList_SetSlice(obj, ilow, ihigh, Py_XNewRef(value)));


Py_XNewRef() is wrong and causes a reference leak.

vstinner · 2023-11-08T14:52:09Z

Modules/_testcapi/list.c

+ }
+NULLABLE(obj);
+NULLABLE(value);
+RETURN_INT(PyList_Append(obj, Py_XNewRef(value)));


Py_XNewRef() is wrong and causes a reference leak.

Modules/_testcapi/list.c

serhiy-storchaka

Thank you @rawwar.

I had too much minor suggestions, so I simply applied them myself.

Now it LGTM.

serhiy-storchaka · 2023-11-08T15:53:22Z

Lib/test/test_capi/test_list.py

+self.assertRaises(TypeError, setitem, lst, 1.5, 10)
+self.assertRaises(TypeError, setitem, 23, 'a', 5)


It only tests the wrapper, not the C API function.

vstinner · 2023-11-08T17:11:24Z

I merged your PR @rawwar, thanks for adding tests for the PyList API!

miss-islington-app · 2023-11-08T17:23:26Z

Thanks @rawwar for the PR, and @vstinner for merging it 🌮🎉.. I'm working now to backport this PR to: 3.12.
🐍🍒⛏🤖

(cherry picked from commit a3903c8) Co-authored-by: Kalyan <kalyan.ben10@live.com> Signed-off-by: kalyanr <kalyan.ben10@live.com> Co-authored-by: Serhiy Storchaka <storchaka@gmail.com> Co-authored-by: Victor Stinner <vstinner@python.org>

bedevere-app · 2023-11-08T17:23:37Z

GH-111861 is a backport of this pull request to the 3.12 branch.

(cherry picked from commit a3903c8) Signed-off-by: kalyanr <kalyan.ben10@live.com> Co-authored-by: Kalyan <kalyan.ben10@live.com> Co-authored-by: Serhiy Storchaka <storchaka@gmail.com> Co-authored-by: Victor Stinner <vstinner@python.org>

Signed-off-by: kalyanr <kalyan.ben10@live.com> Co-authored-by: Serhiy Storchaka <storchaka@gmail.com> Co-authored-by: Victor Stinner <vstinner@python.org>

rawwar added 2 commits October 31, 2023 21:37

init test c file
d43d9b2

single test added
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bedevere-appbot mentioned this pull request Oct 31, 2023
Add more C API tests #111495
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rawwar added 5 commits October 31, 2023 22:43

fix lint
ccf1bff

fix list check tests
8d17ca6

lint
bd9415d

add 2 tests
17d60d1

add test
322eab9

Eclips4 requested a review from serhiy-storchaka October 31, 2023 19:15

rawwar added 5 commits November 1, 2023 02:06

add getitem test
5c58022

test list_get_item
6b12f1f

add test for setitem
70e385f

add test for setitem
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Signed-off-by: kalyanr <kalyan.ben10@live.com>

Merge branch 'kalyan/test-capi-list' of github.com:rawwar/cpython int…
2a50fb8
…o kalyan/test-capi-list Signed-off-by: kalyanr <kalyan.ben10@live.com>

serhiy-storchaka reviewed Oct 31, 2023
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skirpichev mentioned this pull request Nov 1, 2023
gh-111495: add stub files for C API test modules #111586
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Merge branch 'main' of github.com:rawwar/cpython into kalyan/test-cap…
1c30f3b
…i-list Signed-off-by: kalyanr <kalyan.ben10@live.com>

serhiy-storchaka mentioned this pull request Nov 1, 2023
gh-111138: Test the public PyList C API #111582
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rawwar added 2 commits November 1, 2023 14:28

add tests
392b3c6
Signed-off-by: kalyanr <kalyan.ben10@live.com>

lint fix
eac8c67
Signed-off-by: kalyanr <kalyan.ben10@live.com>

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serhiy-storchaka reviewed Nov 1, 2023
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rawwarand others added 5 commits November 1, 2023 15:36

add tests
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Signed-off-by: kalyanr <kalyan.ben10@live.com>

Update Lib/test/test_capi/test_list.py
40e4022
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

Update Modules/_testcapi/list.c
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Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

Update Lib/test/test_capi/test_list.py
433351d
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

Update Lib/test/test_capi/test_list.py
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Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

pr feedback fixes
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Signed-off-by: kalyanr <kalyan.ben10@live.com>

bedevere-appbot added the awaiting review label Nov 1, 2023

Update list.c
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rawwar requested review from serhiy-storchaka and vstinner November 1, 2023 17:13

rawwar added 3 commits November 1, 2023 22:43

Merge branch 'main' into kalyan/test-capi-list
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Merge branch 'main' into kalyan/test-capi-list
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Merge branch 'main' into kalyan/test-capi-list
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Update Modules/_testcapi/list.c
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Merge branch 'main' into kalyan/test-capi-list
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Minor fixes.
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serhiy-storchaka approved these changes Nov 8, 2023
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vstinner merged commit a3903c8 into python:mainNov 8, 2023

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vstinner mentioned this pull request Nov 8, 2023
C API: Consider adding a public PyList_Extend() function #111138
Closed

		self.assertRaises(TypeError, setitem, lst, 1.5, 10)
		self.assertRaises(TypeError, setitem, 23, 'a', 5)

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gh-111495: Add tests for PyList C API#111562

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