test_import.py 文件源码

def skip_if_lib_missing(libname, text=None):
    """
    pytest decorator to evaluate the required shared lib.

    :param libname: Name of the required library.
    :param text: Text to put into the reason message
                 (defaults to 'lib%s.so' % libname)

    :return: pytest decorator with a reason.
    """
    soname = ctypes.util.find_library(libname)
    if not text:
        text = "lib%s.so" % libname
    # Return pytest decorator.
    return skipif(not (soname and ctypes.CDLL(soname)),
                  reason="required %s missing" % text)