diff options
Diffstat (limited to '3rdparty/pybind11/tests/test_builtin_casters.py')
| -rw-r--r-- | 3rdparty/pybind11/tests/test_builtin_casters.py | 319 |
1 files changed, 211 insertions, 108 deletions
diff --git a/3rdparty/pybind11/tests/test_builtin_casters.py b/3rdparty/pybind11/tests/test_builtin_casters.py index bd7996b6..d38ae680 100644 --- a/3rdparty/pybind11/tests/test_builtin_casters.py +++ b/3rdparty/pybind11/tests/test_builtin_casters.py @@ -1,10 +1,10 @@ -# -*- coding: utf-8 -*- -import pytest +import sys -import env # noqa: F401 +import pytest +import env +from pybind11_tests import IncType, UserType from pybind11_tests import builtin_casters as m -from pybind11_tests import UserType, IncType def test_simple_string(): @@ -13,12 +13,12 @@ def test_simple_string(): def test_unicode_conversion(): """Tests unicode conversion and error reporting.""" - assert m.good_utf8_string() == u"Say utf8β½ π π" - assert m.good_utf16_string() == u"bβ½ππz" - assert m.good_utf32_string() == u"aππβ½z" - assert m.good_wchar_string() == u"aβΈπz" + assert m.good_utf8_string() == "Say utf8β½ π π" + assert m.good_utf16_string() == "bβ½ππz" + assert m.good_utf32_string() == "aππβ½z" + assert m.good_wchar_string() == "aβΈπz" if hasattr(m, "has_u8string"): - assert m.good_utf8_u8string() == u"Say utf8β½ π π" + assert m.good_utf8_u8string() == "Say utf8β½ π π" with pytest.raises(UnicodeDecodeError): m.bad_utf8_string() @@ -26,7 +26,7 @@ def test_unicode_conversion(): with pytest.raises(UnicodeDecodeError): m.bad_utf16_string() - # These are provided only if they actually fail (they don't when 32-bit and under Python 2.7) + # These are provided only if they actually fail (they don't when 32-bit) if hasattr(m, "bad_utf32_string"): with pytest.raises(UnicodeDecodeError): m.bad_utf32_string() @@ -38,10 +38,10 @@ def test_unicode_conversion(): m.bad_utf8_u8string() assert m.u8_Z() == "Z" - assert m.u8_eacute() == u"Γ©" - assert m.u16_ibang() == u"β½" - assert m.u32_mathbfA() == u"π" - assert m.wchar_heart() == u"β₯" + assert m.u8_eacute() == "Γ©" + assert m.u16_ibang() == "β½" + assert m.u32_mathbfA() == "π" + assert m.wchar_heart() == "β₯" if hasattr(m, "has_u8string"): assert m.u8_char8_Z() == "Z" @@ -50,72 +50,72 @@ def test_single_char_arguments(): """Tests failures for passing invalid inputs to char-accepting functions""" def toobig_message(r): - return "Character code point not in range({0:#x})".format(r) + return f"Character code point not in range({r:#x})" toolong_message = "Expected a character, but multi-character string found" - assert m.ord_char(u"a") == 0x61 # simple ASCII - assert m.ord_char_lv(u"b") == 0x62 + assert m.ord_char("a") == 0x61 # simple ASCII + assert m.ord_char_lv("b") == 0x62 assert ( - m.ord_char(u"Γ©") == 0xE9 + m.ord_char("Γ©") == 0xE9 ) # requires 2 bytes in utf-8, but can be stuffed in a char with pytest.raises(ValueError) as excinfo: - assert m.ord_char(u"Δ") == 0x100 # requires 2 bytes, doesn't fit in a char + assert m.ord_char("Δ") == 0x100 # requires 2 bytes, doesn't fit in a char assert str(excinfo.value) == toobig_message(0x100) with pytest.raises(ValueError) as excinfo: - assert m.ord_char(u"ab") + assert m.ord_char("ab") assert str(excinfo.value) == toolong_message - assert m.ord_char16(u"a") == 0x61 - assert m.ord_char16(u"Γ©") == 0xE9 - assert m.ord_char16_lv(u"Γͺ") == 0xEA - assert m.ord_char16(u"Δ") == 0x100 - assert m.ord_char16(u"β½") == 0x203D - assert m.ord_char16(u"β₯") == 0x2665 - assert m.ord_char16_lv(u"β‘") == 0x2661 + assert m.ord_char16("a") == 0x61 + assert m.ord_char16("Γ©") == 0xE9 + assert m.ord_char16_lv("Γͺ") == 0xEA + assert m.ord_char16("Δ") == 0x100 + assert m.ord_char16("β½") == 0x203D + assert m.ord_char16("β₯") == 0x2665 + assert m.ord_char16_lv("β‘") == 0x2661 with pytest.raises(ValueError) as excinfo: - assert m.ord_char16(u"π") == 0x1F382 # requires surrogate pair + assert m.ord_char16("π") == 0x1F382 # requires surrogate pair assert str(excinfo.value) == toobig_message(0x10000) with pytest.raises(ValueError) as excinfo: - assert m.ord_char16(u"aa") + assert m.ord_char16("aa") assert str(excinfo.value) == toolong_message - assert m.ord_char32(u"a") == 0x61 - assert m.ord_char32(u"Γ©") == 0xE9 - assert m.ord_char32(u"Δ") == 0x100 - assert m.ord_char32(u"β½") == 0x203D - assert m.ord_char32(u"β₯") == 0x2665 - assert m.ord_char32(u"π") == 0x1F382 + assert m.ord_char32("a") == 0x61 + assert m.ord_char32("Γ©") == 0xE9 + assert m.ord_char32("Δ") == 0x100 + assert m.ord_char32("β½") == 0x203D + assert m.ord_char32("β₯") == 0x2665 + assert m.ord_char32("π") == 0x1F382 with pytest.raises(ValueError) as excinfo: - assert m.ord_char32(u"aa") + assert m.ord_char32("aa") assert str(excinfo.value) == toolong_message - assert m.ord_wchar(u"a") == 0x61 - assert m.ord_wchar(u"Γ©") == 0xE9 - assert m.ord_wchar(u"Δ") == 0x100 - assert m.ord_wchar(u"β½") == 0x203D - assert m.ord_wchar(u"β₯") == 0x2665 + assert m.ord_wchar("a") == 0x61 + assert m.ord_wchar("Γ©") == 0xE9 + assert m.ord_wchar("Δ") == 0x100 + assert m.ord_wchar("β½") == 0x203D + assert m.ord_wchar("β₯") == 0x2665 if m.wchar_size == 2: with pytest.raises(ValueError) as excinfo: - assert m.ord_wchar(u"π") == 0x1F382 # requires surrogate pair + assert m.ord_wchar("π") == 0x1F382 # requires surrogate pair assert str(excinfo.value) == toobig_message(0x10000) else: - assert m.ord_wchar(u"π") == 0x1F382 + assert m.ord_wchar("π") == 0x1F382 with pytest.raises(ValueError) as excinfo: - assert m.ord_wchar(u"aa") + assert m.ord_wchar("aa") assert str(excinfo.value) == toolong_message if hasattr(m, "has_u8string"): - assert m.ord_char8(u"a") == 0x61 # simple ASCII - assert m.ord_char8_lv(u"b") == 0x62 + assert m.ord_char8("a") == 0x61 # simple ASCII + assert m.ord_char8_lv("b") == 0x62 assert ( - m.ord_char8(u"Γ©") == 0xE9 + m.ord_char8("Γ©") == 0xE9 ) # requires 2 bytes in utf-8, but can be stuffed in a char with pytest.raises(ValueError) as excinfo: - assert m.ord_char8(u"Δ") == 0x100 # requires 2 bytes, doesn't fit in a char + assert m.ord_char8("Δ") == 0x100 # requires 2 bytes, doesn't fit in a char assert str(excinfo.value) == toobig_message(0x100) with pytest.raises(ValueError) as excinfo: - assert m.ord_char8(u"ab") + assert m.ord_char8("ab") assert str(excinfo.value) == toolong_message @@ -124,18 +124,22 @@ def test_bytes_to_string(): one-way: the only way to return bytes to Python is via the pybind11::bytes class.""" # Issue #816 - def to_bytes(s): - b = s if env.PY2 else s.encode("utf8") - assert isinstance(b, bytes) - return b - - assert m.strlen(to_bytes("hi")) == 2 - assert m.string_length(to_bytes("world")) == 5 - assert m.string_length(to_bytes("a\x00b")) == 3 - assert m.strlen(to_bytes("a\x00b")) == 1 # C-string limitation + assert m.strlen(b"hi") == 2 + assert m.string_length(b"world") == 5 + assert m.string_length("a\x00b".encode()) == 3 + assert m.strlen("a\x00b".encode()) == 1 # C-string limitation # passing in a utf8 encoded string should work - assert m.string_length(u"π©".encode("utf8")) == 4 + assert m.string_length("π©".encode()) == 4 + + +def test_bytearray_to_string(): + """Tests the ability to pass bytearray to C++ string-accepting functions""" + assert m.string_length(bytearray(b"Hi")) == 2 + assert m.strlen(bytearray(b"bytearray")) == 9 + assert m.string_length(bytearray()) == 0 + assert m.string_length(bytearray("π¦", "utf-8", "strict")) == 4 + assert m.string_length(bytearray(b"\x80")) == 1 @pytest.mark.skipif(not hasattr(m, "has_string_view"), reason="no <string_view>") @@ -143,26 +147,26 @@ def test_string_view(capture): """Tests support for C++17 string_view arguments and return values""" assert m.string_view_chars("Hi") == [72, 105] assert m.string_view_chars("Hi π") == [72, 105, 32, 0xF0, 0x9F, 0x8E, 0x82] - assert m.string_view16_chars(u"Hi π") == [72, 105, 32, 0xD83C, 0xDF82] - assert m.string_view32_chars(u"Hi π") == [72, 105, 32, 127874] + assert m.string_view16_chars("Hi π") == [72, 105, 32, 0xD83C, 0xDF82] + assert m.string_view32_chars("Hi π") == [72, 105, 32, 127874] if hasattr(m, "has_u8string"): assert m.string_view8_chars("Hi") == [72, 105] - assert m.string_view8_chars(u"Hi π") == [72, 105, 32, 0xF0, 0x9F, 0x8E, 0x82] + assert m.string_view8_chars("Hi π") == [72, 105, 32, 0xF0, 0x9F, 0x8E, 0x82] - assert m.string_view_return() == u"utf8 secret π" - assert m.string_view16_return() == u"utf16 secret π" - assert m.string_view32_return() == u"utf32 secret π" + assert m.string_view_return() == "utf8 secret π" + assert m.string_view16_return() == "utf16 secret π" + assert m.string_view32_return() == "utf32 secret π" if hasattr(m, "has_u8string"): - assert m.string_view8_return() == u"utf8 secret π" + assert m.string_view8_return() == "utf8 secret π" with capture: m.string_view_print("Hi") m.string_view_print("utf8 π") - m.string_view16_print(u"utf16 π") - m.string_view32_print(u"utf32 π") + m.string_view16_print("utf16 π") + m.string_view32_print("utf32 π") assert ( capture - == u""" + == """ Hi 2 utf8 π 9 utf16 π 8 @@ -172,10 +176,10 @@ def test_string_view(capture): if hasattr(m, "has_u8string"): with capture: m.string_view8_print("Hi") - m.string_view8_print(u"utf8 π") + m.string_view8_print("utf8 π") assert ( capture - == u""" + == """ Hi 2 utf8 π 9 """ @@ -184,11 +188,11 @@ def test_string_view(capture): with capture: m.string_view_print("Hi, ascii") m.string_view_print("Hi, utf8 π") - m.string_view16_print(u"Hi, utf16 π") - m.string_view32_print(u"Hi, utf32 π") + m.string_view16_print("Hi, utf16 π") + m.string_view32_print("Hi, utf32 π") assert ( capture - == u""" + == """ Hi, ascii 9 Hi, utf8 π 13 Hi, utf16 π 12 @@ -198,15 +202,25 @@ def test_string_view(capture): if hasattr(m, "has_u8string"): with capture: m.string_view8_print("Hi, ascii") - m.string_view8_print(u"Hi, utf8 π") + m.string_view8_print("Hi, utf8 π") assert ( capture - == u""" + == """ Hi, ascii 9 Hi, utf8 π 13 """ ) + assert m.string_view_bytes() == b"abc \x80\x80 def" + assert m.string_view_str() == "abc β½ def" + assert m.string_view_from_bytes("abc β½ def".encode()) == "abc β½ def" + if hasattr(m, "has_u8string"): + assert m.string_view8_str() == "abc β½ def" + assert m.string_view_memoryview() == "Have some π".encode() + + assert m.bytes_from_type_with_both_operator_string_and_string_view() == b"success" + assert m.str_from_type_with_both_operator_string_and_string_view() == "success" + def test_integer_casting(): """Issue #929 - out-of-range integer values shouldn't be accepted""" @@ -214,20 +228,8 @@ def test_integer_casting(): assert m.i64_str(-1) == "-1" assert m.i32_str(2000000000) == "2000000000" assert m.u32_str(2000000000) == "2000000000" - if env.PY2: - assert m.i32_str(long(-1)) == "-1" # noqa: F821 undefined name 'long' - assert m.i64_str(long(-1)) == "-1" # noqa: F821 undefined name 'long' - assert ( - m.i64_str(long(-999999999999)) # noqa: F821 undefined name 'long' - == "-999999999999" - ) - assert ( - m.u64_str(long(999999999999)) # noqa: F821 undefined name 'long' - == "999999999999" - ) - else: - assert m.i64_str(-999999999999) == "-999999999999" - assert m.u64_str(999999999999) == "999999999999" + assert m.i64_str(-999999999999) == "-999999999999" + assert m.u64_str(999999999999) == "999999999999" with pytest.raises(TypeError) as excinfo: m.u32_str(-1) @@ -242,13 +244,100 @@ def test_integer_casting(): m.i32_str(3000000000) assert "incompatible function arguments" in str(excinfo.value) - if env.PY2: - with pytest.raises(TypeError) as excinfo: - m.u32_str(long(-1)) # noqa: F821 undefined name 'long' - assert "incompatible function arguments" in str(excinfo.value) - with pytest.raises(TypeError) as excinfo: - m.u64_str(long(-1)) # noqa: F821 undefined name 'long' - assert "incompatible function arguments" in str(excinfo.value) + +def test_int_convert(): + class Int: + def __int__(self): + return 42 + + class NotInt: + pass + + class Float: + def __float__(self): + return 41.99999 + + class Index: + def __index__(self): + return 42 + + class IntAndIndex: + def __int__(self): + return 42 + + def __index__(self): + return 0 + + class RaisingTypeErrorOnIndex: + def __index__(self): + raise TypeError + + def __int__(self): + return 42 + + class RaisingValueErrorOnIndex: + def __index__(self): + raise ValueError + + def __int__(self): + return 42 + + convert, noconvert = m.int_passthrough, m.int_passthrough_noconvert + + def requires_conversion(v): + pytest.raises(TypeError, noconvert, v) + + def cant_convert(v): + pytest.raises(TypeError, convert, v) + + assert convert(7) == 7 + assert noconvert(7) == 7 + cant_convert(3.14159) + # TODO: Avoid DeprecationWarning in `PyLong_AsLong` (and similar) + # TODO: PyPy 3.8 does not behave like CPython 3.8 here yet (7.3.7) + if (3, 8) <= sys.version_info < (3, 10) and env.CPYTHON: + with env.deprecated_call(): + assert convert(Int()) == 42 + else: + assert convert(Int()) == 42 + requires_conversion(Int()) + cant_convert(NotInt()) + cant_convert(Float()) + + # Before Python 3.8, `PyLong_AsLong` does not pick up on `obj.__index__`, + # but pybind11 "backports" this behavior. + assert convert(Index()) == 42 + assert noconvert(Index()) == 42 + assert convert(IntAndIndex()) == 0 # Fishy; `int(DoubleThought)` == 42 + assert noconvert(IntAndIndex()) == 0 + assert convert(RaisingTypeErrorOnIndex()) == 42 + requires_conversion(RaisingTypeErrorOnIndex()) + assert convert(RaisingValueErrorOnIndex()) == 42 + requires_conversion(RaisingValueErrorOnIndex()) + + +def test_numpy_int_convert(): + np = pytest.importorskip("numpy") + + convert, noconvert = m.int_passthrough, m.int_passthrough_noconvert + + def require_implicit(v): + pytest.raises(TypeError, noconvert, v) + + # `np.intc` is an alias that corresponds to a C++ `int` + assert convert(np.intc(42)) == 42 + assert noconvert(np.intc(42)) == 42 + + # The implicit conversion from np.float32 is undesirable but currently accepted. + # TODO: Avoid DeprecationWarning in `PyLong_AsLong` (and similar) + # TODO: PyPy 3.8 does not behave like CPython 3.8 here yet (7.3.7) + # https://github.com/pybind/pybind11/issues/3408 + if (3, 8) <= sys.version_info < (3, 10) and env.CPYTHON: + with env.deprecated_call(): + assert convert(np.float32(3.14159)) == 3 + else: + assert convert(np.float32(3.14159)) == 3 + require_implicit(np.float32(3.14159)) def test_tuple(doc): @@ -315,6 +404,7 @@ def test_reference_wrapper(): """std::reference_wrapper for builtin and user types""" assert m.refwrap_builtin(42) == 420 assert m.refwrap_usertype(UserType(42)) == 42 + assert m.refwrap_usertype_const(UserType(42)) == 42 with pytest.raises(TypeError) as excinfo: m.refwrap_builtin(None) @@ -324,6 +414,9 @@ def test_reference_wrapper(): m.refwrap_usertype(None) assert "incompatible function arguments" in str(excinfo.value) + assert m.refwrap_lvalue().value == 1 + assert m.refwrap_lvalue_const().value == 1 + a1 = m.refwrap_list(copy=True) a2 = m.refwrap_list(copy=True) assert [x.value for x in a1] == [2, 3] @@ -366,7 +459,7 @@ def test_bool_caster(): require_implicit(None) assert convert(None) is False - class A(object): + class A: def __init__(self, x): self.x = x @@ -376,7 +469,7 @@ def test_bool_caster(): def __bool__(self): return self.x - class B(object): + class B: pass # Arbitrary objects are not accepted @@ -406,18 +499,28 @@ def test_numpy_bool(): def test_int_long(): - """In Python 2, a C++ int should return a Python int rather than long - if possible: longs are not always accepted where ints are used (such - as the argument to sys.exit()). A C++ long long is always a Python - long.""" - - import sys - - must_be_long = type(getattr(sys, "maxint", 1) + 1) assert isinstance(m.int_cast(), int) assert isinstance(m.long_cast(), int) - assert isinstance(m.longlong_cast(), must_be_long) + assert isinstance(m.longlong_cast(), int) def test_void_caster_2(): assert m.test_void_caster() + + +def test_const_ref_caster(): + """Verifies that const-ref is propagated through type_caster cast_op. + The returned ConstRefCasted type is a minimal type that is constructed to + reference the casting mode used. + """ + x = False + assert m.takes(x) == 1 + assert m.takes_move(x) == 1 + + assert m.takes_ptr(x) == 3 + assert m.takes_ref(x) == 2 + assert m.takes_ref_wrap(x) == 2 + + assert m.takes_const_ptr(x) == 5 + assert m.takes_const_ref(x) == 4 + assert m.takes_const_ref_wrap(x) == 4 |