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# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
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#
#     http://www.apache.org/licenses/LICENSE-2.0
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"""Tests for the Gaussian error linear unit."""

import tensorflow as tf, tf_keras

from official.modeling import activations


class GeluTest(tf.test.TestCase):

  def test_gelu(self):
    expected_data = [[0.14967535, 0., -0.10032465],
                     [-0.15880796, -0.04540223, 2.9963627]]
    gelu_data = activations.gelu([[.25, 0, -.25], [-1, -2, 3]])
    self.assertAllClose(expected_data, gelu_data)


if __name__ == '__main__':
  tf.test.main()