test_recompiler.py 文件源码

def test_global_var_int():
    ffi = FFI()
    ffi.cdef("int a, b, c;")
    lib = verify(ffi, 'test_global_var_int', 'int a = 999, b, c;')
    assert lib.a == 999
    lib.a -= 1001
    assert lib.a == -2
    lib.a = -2147483648
    assert lib.a == -2147483648
    py.test.raises(OverflowError, "lib.a = 2147483648")
    py.test.raises(OverflowError, "lib.a = -2147483649")
    lib.b = 525      # try with the first access being in setattr, too
    assert lib.b == 525
    py.test.raises(AttributeError, "del lib.a")
    py.test.raises(AttributeError, "del lib.c")
    py.test.raises(AttributeError, "del lib.foobarbaz")