test_random.py 文件源码

def check_function(self, function, sz):
        from threading import Thread

        out1 = np.empty((len(self.seeds),) + sz)
        out2 = np.empty((len(self.seeds),) + sz)

        # threaded generation
        t = [Thread(target=function, args=(np.random.RandomState(s), o))
             for s, o in zip(self.seeds, out1)]
        [x.start() for x in t]
        [x.join() for x in t]

        # the same serial
        for s, o in zip(self.seeds, out2):
            function(np.random.RandomState(s), o)

        # these platforms change x87 fpu precision mode in threads
        if (np.intp().dtype.itemsize == 4 and sys.platform == "win32"):
            np.testing.assert_array_almost_equal(out1, out2)
        else:
            np.testing.assert_array_equal(out1, out2)