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"""Tests for the Gaussian error linear unit."""

import tensorflow as tf

from tensorflow.python.keras import keras_parameterized  # pylint: disable=g-direct-tensorflow-import
from official.modeling import activations


@keras_parameterized.run_all_keras_modes
class GeluTest(keras_parameterized.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()
