test_c.py 文件源码

def test_FILE_only_for_FILE_arg():
    if sys.platform == "win32":
        py.test.skip("testing FILE not implemented")
    #
    B_NOT_FILE = new_struct_type("struct NOT_FILE")
    B_NOT_FILEP = new_pointer_type(B_NOT_FILE)
    BChar = new_primitive_type("char")
    BCharP = new_pointer_type(BChar)
    BInt = new_primitive_type("int")
    BFunc = new_function_type((BCharP, B_NOT_FILEP), BInt, False)
    ll = find_and_load_library('c')
    fputs = ll.load_function(BFunc, "fputs")
    #
    import posix
    fdr, fdw = posix.pipe()
    fr1 = posix.fdopen(fdr, 'r')
    fw1 = posix.fdopen(fdw, 'w')
    #
    e = py.test.raises(TypeError, fputs, b"hello world\n", fw1)
    assert str(e.value).startswith(
        "initializer for ctype 'struct NOT_FILE *' must "
        "be a cdata pointer, not ")