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import py
from cffi import FFI, VerificationError, CDefError
from cffi.recompiler import make_py_source
from testing.udir import udir
def test_simple():
ffi = FFI()
ffi.cdef("int close(int); static const int BB = 42; extern int somevar;")
target = udir.join('test_simple.py')
make_py_source(ffi, 'test_simple', str(target))
assert target.read() == r"""# auto-generated file
import _cffi_backend
ffi = _cffi_backend.FFI('test_simple',
_version = 0x2601,
_types = b'\x00\x00\x01\x0D\x00\x00\x07\x01\x00\x00\x00\x0F',
_globals = (b'\xFF\xFF\xFF\x1FBB',42,b'\x00\x00\x00\x23close',0,b'\x00\x00\x01\x21somevar',0),
)
"""
def test_global_constant():
ffi = FFI()
ffi.cdef("static const long BB; static const float BF = 12;")
target = udir.join('test_valid_global_constant.py')
make_py_source(ffi, 'test_valid_global_constant', str(target))
assert target.read() == r"""# auto-generated file
import _cffi_backend
ffi = _cffi_backend.FFI('test_valid_global_constant',
_version = 0x2601,
_types = b'\x00\x00\x0D\x01\x00\x00\x09\x01',
_globals = (b'\x00\x00\x01\x25BB',0,b'\x00\x00\x00\x25BF',0),
)
"""
def test_invalid_global_constant_3():
ffi = FFI()
e = py.test.raises(CDefError, ffi.cdef, "#define BB 12.34")
assert str(e.value).startswith(
"only supports one of the following syntax:")
def test_invalid_dotdotdot_in_macro():
ffi = FFI()
ffi.cdef("#define FOO ...")
target = udir.join('test_invalid_dotdotdot_in_macro.py')
e = py.test.raises(VerificationError, make_py_source, ffi,
'test_invalid_dotdotdot_in_macro', str(target))
assert str(e.value) == ("macro FOO: cannot use the syntax '...' in "
"'#define FOO ...' when using the ABI mode")
def test_typename():
ffi = FFI()
ffi.cdef("typedef int foobar_t;")
target = udir.join('test_typename.py')
make_py_source(ffi, 'test_typename', str(target))
assert target.read() == r"""# auto-generated file
import _cffi_backend
ffi = _cffi_backend.FFI('test_typename',
_version = 0x2601,
_types = b'\x00\x00\x07\x01',
_typenames = (b'\x00\x00\x00\x00foobar_t',),
)
"""
def test_enum():
ffi = FFI()
ffi.cdef("enum myenum_e { AA, BB, CC=-42 };")
target = udir.join('test_enum.py')
make_py_source(ffi, 'test_enum', str(target))
assert target.read() == r"""# auto-generated file
import _cffi_backend
ffi = _cffi_backend.FFI('test_enum',
_version = 0x2601,
_types = b'\x00\x00\x00\x0B',
_globals = (b'\xFF\xFF\xFF\x0BAA',0,b'\xFF\xFF\xFF\x0BBB',1,b'\xFF\xFF\xFF\x0BCC',-42),
_enums = (b'\x00\x00\x00\x00\x00\x00\x00\x15myenum_e\x00AA,BB,CC',),
)
"""
def test_struct():
ffi = FFI()
ffi.cdef("struct foo_s { int a; signed char b[]; }; struct bar_s;")
target = udir.join('test_struct.py')
make_py_source(ffi, 'test_struct', str(target))
assert target.read() == r"""# auto-generated file
import _cffi_backend
ffi = _cffi_backend.FFI('test_struct',
_version = 0x2601,
_types = b'\x00\x00\x07\x01\x00\x00\x03\x01\x00\x00\x01\x07\x00\x00\x00\x09\x00\x00\x01\x09',
_struct_unions = ((b'\x00\x00\x00\x03\x00\x00\x00\x10bar_s',),(b'\x00\x00\x00\x04\x00\x00\x00\x02foo_s',b'\x00\x00\x00\x11a',b'\x00\x00\x02\x11b')),
)
"""
def test_include():
ffi = FFI()
ffi.cdef("#define ABC 123")
ffi.set_source('test_include', None)
target = udir.join('test_include.py')
make_py_source(ffi, 'test_include', str(target))
assert target.read() == r"""# auto-generated file
import _cffi_backend
ffi = _cffi_backend.FFI('test_include',
_version = 0x2601,
_types = b'',
_globals = (b'\xFF\xFF\xFF\x1FABC',123,),
)
"""
#
ffi2 = FFI()
ffi2.include(ffi)
target2 = udir.join('test2_include.py')
make_py_source(ffi2, 'test2_include', str(target2))
assert target2.read() == r"""# auto-generated file
import _cffi_backend
from test_include import ffi as _ffi0
ffi = _cffi_backend.FFI('test2_include',
_version = 0x2601,
_types = b'',
_includes = (_ffi0,),
)
"""
def test_negative_constant():
ffi = FFI()
ffi.cdef("static const int BB = -42;")
target = udir.join('test_negative_constant.py')
make_py_source(ffi, 'test_negative_constant', str(target))
assert target.read() == r"""# auto-generated file
import _cffi_backend
ffi = _cffi_backend.FFI('test_negative_constant',
_version = 0x2601,
_types = b'',
_globals = (b'\xFF\xFF\xFF\x1FBB',-42,),
)
"""
def test_struct_included():
baseffi = FFI()
baseffi.cdef("struct foo_s { int x; };")
baseffi.set_source('test_struct_included_base', None)
#
ffi = FFI()
ffi.include(baseffi)
target = udir.join('test_struct_included.py')
make_py_source(ffi, 'test_struct_included', str(target))
assert target.read() == r"""# auto-generated file
import _cffi_backend
from test_struct_included_base import ffi as _ffi0
ffi = _cffi_backend.FFI('test_struct_included',
_version = 0x2601,
_types = b'\x00\x00\x00\x09',
_struct_unions = ((b'\x00\x00\x00\x00\x00\x00\x00\x08foo_s',),),
_includes = (_ffi0,),
)
"""
def test_no_cross_include():
baseffi = FFI()
baseffi.set_source('test_no_cross_include_base', "..source..")
#
ffi = FFI()
ffi.include(baseffi)
target = udir.join('test_no_cross_include.py')
py.test.raises(VerificationError, make_py_source,
ffi, 'test_no_cross_include', str(target))
def test_array():
ffi = FFI()
ffi.cdef("typedef int32_t my_array_t[42];")
target = udir.join('test_array.py')
make_py_source(ffi, 'test_array', str(target))
assert target.read() == r"""# auto-generated file
import _cffi_backend
ffi = _cffi_backend.FFI('test_array',
_version = 0x2601,
_types = b'\x00\x00\x15\x01\x00\x00\x00\x05\x00\x00\x00\x2A',
_typenames = (b'\x00\x00\x00\x01my_array_t',),
)
"""
def test_array_overflow():
ffi = FFI()
ffi.cdef("typedef int32_t my_array_t[3000000000];")
target = udir.join('test_array_overflow.py')
py.test.raises(OverflowError, make_py_source,
ffi, 'test_array_overflow', str(target))
def test_global_var():
ffi = FFI()
ffi.cdef("extern int myglob;")
target = udir.join('test_global_var.py')
make_py_source(ffi, 'test_global_var', str(target))
assert target.read() == r"""# auto-generated file
import _cffi_backend
ffi = _cffi_backend.FFI('test_global_var',
_version = 0x2601,
_types = b'\x00\x00\x07\x01',
_globals = (b'\x00\x00\x00\x21myglob',0,),
)
"""
def test_bitfield():
ffi = FFI()
ffi.cdef("struct foo_s { int y:10; short x:5; };")
target = udir.join('test_bitfield.py')
make_py_source(ffi, 'test_bitfield', str(target))
assert target.read() == r"""# auto-generated file
import _cffi_backend
ffi = _cffi_backend.FFI('test_bitfield',
_version = 0x2601,
_types = b'\x00\x00\x07\x01\x00\x00\x05\x01\x00\x00\x00\x09',
_struct_unions = ((b'\x00\x00\x00\x02\x00\x00\x00\x02foo_s',b'\x00\x00\x00\x13\x00\x00\x00\x0Ay',b'\x00\x00\x01\x13\x00\x00\x00\x05x'),),
)
"""
|
