test_rmsprop_op.py

import unittest
import numpy as np
from op_test import OpTest


class TestRmspropOp(OpTest):
    def setUp(self):
        self.op_type = "rmsprop"

        param = np.random.random((123, 321)).astype("float32")
        grad = np.random.random((123, 321)).astype("float32")
        moment = np.zeros((123, 321)).astype("float32")

        learning_rate = 0.01
        epsilon = 1e-6
        decay_rate = 0.9

        self.inputs = {'Param': param, 'Grad': grad, 'Moment': moment}

        self.attrs = {
            'learningRate': learning_rate,
            'epsilon': epsilon,
            'decayRate': decay_rate
        }

        moment_out = decay_rate * moment + (1 - decay_rate) * grad * grad
        param_out = param - learning_rate * grad / (np.sqrt(moment_out) +
                                                    epsilon)

        self.outputs = {'ParamOut': param_out, 'MomentOut': moment_out}

    def test_check_output(self):
        self.check_output()


if __name__ == "__main__":
    unittest.main()