mirror of
https://github.com/RYDE-WORK/pybind11.git
synced 2026-01-19 21:23:26 +08:00
6c65ab5950
* Restoring `const` removed from pytypes.h in PR #3254, adding tests reflective of user code that breaks when those `const` are removed. * clang-tidy NOLINTs (and one collateral fix). * Inserting PYBIND11_CONST_FOR_STRICT_PLATFORMS * Trying `defined(__APPLE__)` * Trying again: `auto it` for strict platforms. * Adding NOLINTNEXTLINE(bugprone-macro-parentheses), expanding comments. * Labeling all changes with `PR #3263`, for easy reference, and to make it easy to undo these changes if we decide to do so in the future.
651 lines
18 KiB
Python
651 lines
18 KiB
Python
# -*- coding: utf-8 -*-
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from __future__ import division
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import sys
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import pytest
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import env # noqa: F401
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from pybind11_tests import debug_enabled
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from pybind11_tests import pytypes as m
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def test_int(doc):
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assert doc(m.get_int) == "get_int() -> int"
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def test_iterator(doc):
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assert doc(m.get_iterator) == "get_iterator() -> Iterator"
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def test_iterable(doc):
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assert doc(m.get_iterable) == "get_iterable() -> Iterable"
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def test_list(capture, doc):
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assert m.list_no_args() == []
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assert m.list_ssize_t() == []
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assert m.list_size_t() == []
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lins = [1, 2]
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m.list_insert_ssize_t(lins)
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assert lins == [1, 83, 2]
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m.list_insert_size_t(lins)
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assert lins == [1, 83, 2, 57]
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with capture:
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lst = m.get_list()
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assert lst == ["inserted-0", "overwritten", "inserted-2"]
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lst.append("value2")
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m.print_list(lst)
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assert (
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capture.unordered
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== """
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Entry at position 0: value
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list item 0: inserted-0
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list item 1: overwritten
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list item 2: inserted-2
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list item 3: value2
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"""
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)
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assert doc(m.get_list) == "get_list() -> list"
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assert doc(m.print_list) == "print_list(arg0: list) -> None"
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def test_none(capture, doc):
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assert doc(m.get_none) == "get_none() -> None"
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assert doc(m.print_none) == "print_none(arg0: None) -> None"
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def test_set(capture, doc):
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s = m.get_set()
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assert s == {"key1", "key2", "key3"}
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with capture:
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s.add("key4")
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m.print_set(s)
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assert (
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capture.unordered
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== """
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key: key1
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key: key2
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key: key3
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key: key4
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"""
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)
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assert not m.set_contains(set(), 42)
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assert m.set_contains({42}, 42)
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assert m.set_contains({"foo"}, "foo")
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assert doc(m.get_list) == "get_list() -> list"
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assert doc(m.print_list) == "print_list(arg0: list) -> None"
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def test_dict(capture, doc):
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d = m.get_dict()
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assert d == {"key": "value"}
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with capture:
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d["key2"] = "value2"
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m.print_dict(d)
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assert (
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capture.unordered
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== """
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key: key, value=value
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key: key2, value=value2
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"""
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)
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assert not m.dict_contains({}, 42)
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assert m.dict_contains({42: None}, 42)
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assert m.dict_contains({"foo": None}, "foo")
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assert doc(m.get_dict) == "get_dict() -> dict"
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assert doc(m.print_dict) == "print_dict(arg0: dict) -> None"
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assert m.dict_keyword_constructor() == {"x": 1, "y": 2, "z": 3}
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def test_tuple():
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assert m.tuple_no_args() == ()
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assert m.tuple_ssize_t() == ()
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assert m.tuple_size_t() == ()
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assert m.get_tuple() == (42, None, "spam")
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@pytest.mark.skipif("env.PY2")
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def test_simple_namespace():
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ns = m.get_simple_namespace()
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assert ns.attr == 42
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assert ns.x == "foo"
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assert ns.right == 2
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assert not hasattr(ns, "wrong")
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def test_str(doc):
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assert m.str_from_char_ssize_t().encode().decode() == "red"
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assert m.str_from_char_size_t().encode().decode() == "blue"
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assert m.str_from_string().encode().decode() == "baz"
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assert m.str_from_bytes().encode().decode() == "boo"
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assert doc(m.str_from_bytes) == "str_from_bytes() -> str"
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class A(object):
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def __str__(self):
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return "this is a str"
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def __repr__(self):
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return "this is a repr"
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assert m.str_from_object(A()) == "this is a str"
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assert m.repr_from_object(A()) == "this is a repr"
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assert m.str_from_handle(A()) == "this is a str"
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s1, s2 = m.str_format()
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assert s1 == "1 + 2 = 3"
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assert s1 == s2
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malformed_utf8 = b"\x80"
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if hasattr(m, "PYBIND11_STR_LEGACY_PERMISSIVE"):
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assert m.str_from_object(malformed_utf8) is malformed_utf8
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elif env.PY2:
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with pytest.raises(UnicodeDecodeError):
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m.str_from_object(malformed_utf8)
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else:
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assert m.str_from_object(malformed_utf8) == "b'\\x80'"
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if env.PY2:
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with pytest.raises(UnicodeDecodeError):
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m.str_from_handle(malformed_utf8)
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else:
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assert m.str_from_handle(malformed_utf8) == "b'\\x80'"
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assert m.str_from_string_from_str("this is a str") == "this is a str"
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ucs_surrogates_str = u"\udcc3"
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if env.PY2:
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assert u"\udcc3" == m.str_from_string_from_str(ucs_surrogates_str)
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else:
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with pytest.raises(UnicodeEncodeError):
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m.str_from_string_from_str(ucs_surrogates_str)
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def test_bytes(doc):
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assert m.bytes_from_char_ssize_t().decode() == "green"
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assert m.bytes_from_char_size_t().decode() == "purple"
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assert m.bytes_from_string().decode() == "foo"
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assert m.bytes_from_str().decode() == "bar"
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assert doc(m.bytes_from_str) == "bytes_from_str() -> {}".format(
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"str" if env.PY2 else "bytes"
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)
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def test_bytearray(doc):
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assert m.bytearray_from_char_ssize_t().decode() == "$%"
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assert m.bytearray_from_char_size_t().decode() == "@$!"
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assert m.bytearray_from_string().decode() == "foo"
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assert m.bytearray_size() == len("foo")
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def test_capsule(capture):
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pytest.gc_collect()
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with capture:
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a = m.return_capsule_with_destructor()
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del a
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pytest.gc_collect()
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assert (
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capture.unordered
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== """
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creating capsule
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destructing capsule
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"""
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)
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with capture:
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a = m.return_capsule_with_destructor_2()
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del a
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pytest.gc_collect()
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assert (
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capture.unordered
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== """
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creating capsule
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destructing capsule: 1234
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"""
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)
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with capture:
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a = m.return_capsule_with_name_and_destructor()
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del a
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pytest.gc_collect()
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assert (
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capture.unordered
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== """
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created capsule (1234, 'pointer type description')
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destructing capsule (1234, 'pointer type description')
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"""
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)
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def test_accessors():
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class SubTestObject:
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attr_obj = 1
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attr_char = 2
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class TestObject:
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basic_attr = 1
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begin_end = [1, 2, 3]
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d = {"operator[object]": 1, "operator[char *]": 2}
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sub = SubTestObject()
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def func(self, x, *args):
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return self.basic_attr + x + sum(args)
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d = m.accessor_api(TestObject())
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assert d["basic_attr"] == 1
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assert d["begin_end"] == [1, 2, 3]
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assert d["operator[object]"] == 1
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assert d["operator[char *]"] == 2
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assert d["attr(object)"] == 1
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assert d["attr(char *)"] == 2
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assert d["missing_attr_ptr"] == "raised"
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assert d["missing_attr_chain"] == "raised"
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assert d["is_none"] is False
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assert d["operator()"] == 2
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assert d["operator*"] == 7
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assert d["implicit_list"] == [1, 2, 3]
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assert all(x in TestObject.__dict__ for x in d["implicit_dict"])
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assert m.tuple_accessor(tuple()) == (0, 1, 2)
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d = m.accessor_assignment()
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assert d["get"] == 0
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assert d["deferred_get"] == 0
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assert d["set"] == 1
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assert d["deferred_set"] == 1
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assert d["var"] == 99
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def test_constructors():
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"""C++ default and converting constructors are equivalent to type calls in Python"""
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types = [bytes, bytearray, str, bool, int, float, tuple, list, dict, set]
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expected = {t.__name__: t() for t in types}
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if env.PY2:
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# Note that bytes.__name__ == 'str' in Python 2.
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# pybind11::str is unicode even under Python 2.
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expected["bytes"] = bytes()
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expected["str"] = unicode() # noqa: F821
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assert m.default_constructors() == expected
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data = {
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bytes: b"41", # Currently no supported or working conversions.
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bytearray: bytearray(b"41"),
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str: 42,
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bool: "Not empty",
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int: "42",
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float: "+1e3",
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tuple: range(3),
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list: range(3),
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dict: [("two", 2), ("one", 1), ("three", 3)],
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set: [4, 4, 5, 6, 6, 6],
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memoryview: b"abc",
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}
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inputs = {k.__name__: v for k, v in data.items()}
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expected = {k.__name__: k(v) for k, v in data.items()}
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if env.PY2: # Similar to the above. See comments above.
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inputs["bytes"] = b"41"
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inputs["str"] = 42
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expected["bytes"] = b"41"
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expected["str"] = u"42"
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assert m.converting_constructors(inputs) == expected
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assert m.cast_functions(inputs) == expected
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# Converting constructors and cast functions should just reference rather
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# than copy when no conversion is needed:
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noconv1 = m.converting_constructors(expected)
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for k in noconv1:
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assert noconv1[k] is expected[k]
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noconv2 = m.cast_functions(expected)
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for k in noconv2:
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assert noconv2[k] is expected[k]
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def test_non_converting_constructors():
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non_converting_test_cases = [
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("bytes", range(10)),
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("none", 42),
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("ellipsis", 42),
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("type", 42),
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]
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for t, v in non_converting_test_cases:
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for move in [True, False]:
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with pytest.raises(TypeError) as excinfo:
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m.nonconverting_constructor(t, v, move)
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expected_error = "Object of type '{}' is not an instance of '{}'".format(
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type(v).__name__, t
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)
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assert str(excinfo.value) == expected_error
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def test_pybind11_str_raw_str():
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# specifically to exercise pybind11::str::raw_str
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cvt = m.convert_to_pybind11_str
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assert cvt(u"Str") == u"Str"
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assert cvt(b"Bytes") == u"Bytes" if env.PY2 else "b'Bytes'"
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assert cvt(None) == u"None"
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assert cvt(False) == u"False"
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assert cvt(True) == u"True"
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assert cvt(42) == u"42"
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assert cvt(2 ** 65) == u"36893488147419103232"
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assert cvt(-1.50) == u"-1.5"
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assert cvt(()) == u"()"
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assert cvt((18,)) == u"(18,)"
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assert cvt([]) == u"[]"
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assert cvt([28]) == u"[28]"
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assert cvt({}) == u"{}"
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assert cvt({3: 4}) == u"{3: 4}"
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assert cvt(set()) == u"set([])" if env.PY2 else "set()"
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assert cvt({3, 3}) == u"set([3])" if env.PY2 else "{3}"
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valid_orig = u"DZ"
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valid_utf8 = valid_orig.encode("utf-8")
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valid_cvt = cvt(valid_utf8)
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if hasattr(m, "PYBIND11_STR_LEGACY_PERMISSIVE"):
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assert valid_cvt is valid_utf8
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else:
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assert type(valid_cvt) is unicode if env.PY2 else str # noqa: F821
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if env.PY2:
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assert valid_cvt == valid_orig
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else:
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assert valid_cvt == "b'\\xc7\\xb1'"
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malformed_utf8 = b"\x80"
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if hasattr(m, "PYBIND11_STR_LEGACY_PERMISSIVE"):
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assert cvt(malformed_utf8) is malformed_utf8
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else:
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if env.PY2:
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with pytest.raises(UnicodeDecodeError):
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cvt(malformed_utf8)
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else:
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malformed_cvt = cvt(malformed_utf8)
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assert type(malformed_cvt) is str
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assert malformed_cvt == "b'\\x80'"
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def test_implicit_casting():
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"""Tests implicit casting when assigning or appending to dicts and lists."""
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z = m.get_implicit_casting()
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assert z["d"] == {
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"char*_i1": "abc",
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"char*_i2": "abc",
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"char*_e": "abc",
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"char*_p": "abc",
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"str_i1": "str",
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"str_i2": "str1",
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"str_e": "str2",
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"str_p": "str3",
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"int_i1": 42,
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"int_i2": 42,
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"int_e": 43,
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"int_p": 44,
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}
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assert z["l"] == [3, 6, 9, 12, 15]
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def test_print(capture):
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with capture:
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m.print_function()
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assert (
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capture
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== """
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Hello, World!
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1 2.0 three True -- multiple args
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*args-and-a-custom-separator
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no new line here -- next print
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flush
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py::print + str.format = this
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"""
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)
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assert capture.stderr == "this goes to stderr"
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with pytest.raises(RuntimeError) as excinfo:
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m.print_failure()
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assert str(excinfo.value) == "Unable to convert call argument " + (
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"'1' of type 'UnregisteredType' to Python object"
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if debug_enabled
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else "to Python object (compile in debug mode for details)"
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)
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def test_hash():
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class Hashable(object):
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def __init__(self, value):
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self.value = value
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def __hash__(self):
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return self.value
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class Unhashable(object):
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__hash__ = None
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assert m.hash_function(Hashable(42)) == 42
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with pytest.raises(TypeError):
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m.hash_function(Unhashable())
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def test_number_protocol():
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for a, b in [(1, 1), (3, 5)]:
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li = [
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a == b,
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a != b,
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a < b,
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a <= b,
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a > b,
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a >= b,
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a + b,
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a - b,
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a * b,
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a / b,
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a | b,
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a & b,
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a ^ b,
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a >> b,
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a << b,
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]
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assert m.test_number_protocol(a, b) == li
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def test_list_slicing():
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li = list(range(100))
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assert li[::2] == m.test_list_slicing(li)
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def test_issue2361():
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# See issue #2361
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assert m.issue2361_str_implicit_copy_none() == "None"
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with pytest.raises(TypeError) as excinfo:
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assert m.issue2361_dict_implicit_copy_none()
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assert "'NoneType' object is not iterable" in str(excinfo.value)
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@pytest.mark.parametrize(
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"method, args, fmt, expected_view",
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[
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(m.test_memoryview_object, (b"red",), "B", b"red"),
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(m.test_memoryview_buffer_info, (b"green",), "B", b"green"),
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(m.test_memoryview_from_buffer, (False,), "h", [3, 1, 4, 1, 5]),
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(m.test_memoryview_from_buffer, (True,), "H", [2, 7, 1, 8]),
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(m.test_memoryview_from_buffer_nativeformat, (), "@i", [4, 7, 5]),
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],
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)
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def test_memoryview(method, args, fmt, expected_view):
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view = method(*args)
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assert isinstance(view, memoryview)
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assert view.format == fmt
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if isinstance(expected_view, bytes) or not env.PY2:
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view_as_list = list(view)
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else:
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# Using max to pick non-zero byte (big-endian vs little-endian).
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view_as_list = [max(ord(c) for c in s) for s in view]
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assert view_as_list == list(expected_view)
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@pytest.mark.xfail("env.PYPY", reason="getrefcount is not available")
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@pytest.mark.parametrize(
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"method",
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[
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m.test_memoryview_object,
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m.test_memoryview_buffer_info,
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],
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)
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def test_memoryview_refcount(method):
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buf = b"\x0a\x0b\x0c\x0d"
|
|
ref_before = sys.getrefcount(buf)
|
|
view = method(buf)
|
|
ref_after = sys.getrefcount(buf)
|
|
assert ref_before < ref_after
|
|
assert list(view) == list(buf)
|
|
|
|
|
|
def test_memoryview_from_buffer_empty_shape():
|
|
view = m.test_memoryview_from_buffer_empty_shape()
|
|
assert isinstance(view, memoryview)
|
|
assert view.format == "B"
|
|
if env.PY2:
|
|
# Python 2 behavior is weird, but Python 3 (the future) is fine.
|
|
# PyPy3 has <memoryview, while CPython 2 has <memory
|
|
assert bytes(view).startswith(b"<memory")
|
|
else:
|
|
assert bytes(view) == b""
|
|
|
|
|
|
def test_test_memoryview_from_buffer_invalid_strides():
|
|
with pytest.raises(RuntimeError):
|
|
m.test_memoryview_from_buffer_invalid_strides()
|
|
|
|
|
|
def test_test_memoryview_from_buffer_nullptr():
|
|
if env.PY2:
|
|
m.test_memoryview_from_buffer_nullptr()
|
|
else:
|
|
with pytest.raises(ValueError):
|
|
m.test_memoryview_from_buffer_nullptr()
|
|
|
|
|
|
@pytest.mark.skipif("env.PY2")
|
|
def test_memoryview_from_memory():
|
|
view = m.test_memoryview_from_memory()
|
|
assert isinstance(view, memoryview)
|
|
assert view.format == "B"
|
|
assert bytes(view) == b"\xff\xe1\xab\x37"
|
|
|
|
|
|
def test_builtin_functions():
|
|
assert m.get_len([i for i in range(42)]) == 42
|
|
with pytest.raises(TypeError) as exc_info:
|
|
m.get_len(i for i in range(42))
|
|
assert str(exc_info.value) in [
|
|
"object of type 'generator' has no len()",
|
|
"'generator' has no length",
|
|
] # PyPy
|
|
|
|
|
|
def test_isinstance_string_types():
|
|
assert m.isinstance_pybind11_bytes(b"")
|
|
assert not m.isinstance_pybind11_bytes(u"")
|
|
|
|
assert m.isinstance_pybind11_str(u"")
|
|
if hasattr(m, "PYBIND11_STR_LEGACY_PERMISSIVE"):
|
|
assert m.isinstance_pybind11_str(b"")
|
|
else:
|
|
assert not m.isinstance_pybind11_str(b"")
|
|
|
|
|
|
def test_pass_bytes_or_unicode_to_string_types():
|
|
assert m.pass_to_pybind11_bytes(b"Bytes") == 5
|
|
with pytest.raises(TypeError):
|
|
m.pass_to_pybind11_bytes(u"Str")
|
|
|
|
if hasattr(m, "PYBIND11_STR_LEGACY_PERMISSIVE") or env.PY2:
|
|
assert m.pass_to_pybind11_str(b"Bytes") == 5
|
|
else:
|
|
with pytest.raises(TypeError):
|
|
m.pass_to_pybind11_str(b"Bytes")
|
|
assert m.pass_to_pybind11_str(u"Str") == 3
|
|
|
|
assert m.pass_to_std_string(b"Bytes") == 5
|
|
assert m.pass_to_std_string(u"Str") == 3
|
|
|
|
malformed_utf8 = b"\x80"
|
|
if hasattr(m, "PYBIND11_STR_LEGACY_PERMISSIVE"):
|
|
assert m.pass_to_pybind11_str(malformed_utf8) == 1
|
|
elif env.PY2:
|
|
with pytest.raises(UnicodeDecodeError):
|
|
m.pass_to_pybind11_str(malformed_utf8)
|
|
else:
|
|
with pytest.raises(TypeError):
|
|
m.pass_to_pybind11_str(malformed_utf8)
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"create_weakref, create_weakref_with_callback",
|
|
[
|
|
(m.weakref_from_handle, m.weakref_from_handle_and_function),
|
|
(m.weakref_from_object, m.weakref_from_object_and_function),
|
|
],
|
|
)
|
|
def test_weakref(create_weakref, create_weakref_with_callback):
|
|
from weakref import getweakrefcount
|
|
|
|
# Apparently, you cannot weakly reference an object()
|
|
class WeaklyReferenced(object):
|
|
pass
|
|
|
|
def callback(wr):
|
|
# No `nonlocal` in Python 2
|
|
callback.called = True
|
|
|
|
obj = WeaklyReferenced()
|
|
assert getweakrefcount(obj) == 0
|
|
wr = create_weakref(obj) # noqa: F841
|
|
assert getweakrefcount(obj) == 1
|
|
|
|
obj = WeaklyReferenced()
|
|
assert getweakrefcount(obj) == 0
|
|
callback.called = False
|
|
wr = create_weakref_with_callback(obj, callback) # noqa: F841
|
|
assert getweakrefcount(obj) == 1
|
|
assert not callback.called
|
|
del obj
|
|
pytest.gc_collect()
|
|
assert callback.called
|
|
|
|
|
|
def test_cpp_iterators():
|
|
assert m.tuple_iterator() == 12
|
|
assert m.dict_iterator() == 305 + 711
|
|
assert m.passed_iterator(iter((-7, 3))) == -4
|
|
|
|
|
|
def test_implementation_details():
|
|
lst = [39, 43, 92, 49, 22, 29, 93, 98, 26, 57, 8]
|
|
tup = tuple(lst)
|
|
assert m.sequence_item_get_ssize_t(lst) == 43
|
|
assert m.sequence_item_set_ssize_t(lst) is None
|
|
assert lst[1] == "peppa"
|
|
assert m.sequence_item_get_size_t(lst) == 92
|
|
assert m.sequence_item_set_size_t(lst) is None
|
|
assert lst[2] == "george"
|
|
assert m.list_item_get_ssize_t(lst) == 49
|
|
assert m.list_item_set_ssize_t(lst) is None
|
|
assert lst[3] == "rebecca"
|
|
assert m.list_item_get_size_t(lst) == 22
|
|
assert m.list_item_set_size_t(lst) is None
|
|
assert lst[4] == "richard"
|
|
assert m.tuple_item_get_ssize_t(tup) == 29
|
|
assert m.tuple_item_set_ssize_t() == ("emely", "edmond")
|
|
assert m.tuple_item_get_size_t(tup) == 93
|
|
assert m.tuple_item_set_size_t() == ("candy", "cat")
|