2017-10-11 17:14:19 +03:00
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# Copyright (c) 2017-present, Facebook, Inc.
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# All rights reserved.
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#
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# This source code is licensed under the license found in the LICENSE file in
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# the root directory of this source tree. An additional grant of patent rights
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# can be found in the PATENTS file in the same directory.
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import torch
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import unittest
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from fairseq.modules import ConvTBC
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import torch.nn as nn
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2017-10-25 22:14:11 +03:00
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from torch.autograd import Variable
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2017-10-11 17:14:19 +03:00
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class TestConvTBC(unittest.TestCase):
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def test_convtbc(self):
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# ksz, in_channels, out_channels
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conv_tbc = ConvTBC(4, 5, kernel_size=3, padding=1)
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# out_channels, in_channels, ksz
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conv1d = nn.Conv1d(4, 5, kernel_size=3, padding=1)
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conv_tbc.weight.data.copy_(conv1d.weight.data.transpose(0, 2))
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conv_tbc.bias.data.copy_(conv1d.bias.data)
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input_tbc = Variable(torch.randn(7, 2, 4), requires_grad=True)
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input1d = Variable(input_tbc.data.transpose(0, 1).transpose(1, 2), requires_grad=True)
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output_tbc = conv_tbc(input_tbc)
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output1d = conv1d(input1d)
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self.assertAlmostEqual(output_tbc.data.transpose(0, 1).transpose(1, 2), output1d.data)
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2017-10-25 22:14:11 +03:00
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2017-10-11 17:14:19 +03:00
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grad_tbc = torch.randn(output_tbc.size())
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grad1d = grad_tbc.transpose(0, 1).transpose(1, 2).contiguous()
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output_tbc.backward(grad_tbc)
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output1d.backward(grad1d)
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self.assertAlmostEqual(conv_tbc.weight.grad.data.transpose(0, 2), conv1d.weight.grad.data)
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self.assertAlmostEqual(conv_tbc.bias.grad.data, conv1d.bias.grad.data)
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self.assertAlmostEqual(input_tbc.grad.data.transpose(0, 1).transpose(1, 2), input1d.grad.data)
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def assertAlmostEqual(self, t1, t2):
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self.assertEqual(t1.size(), t2.size(), "size mismatch")
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self.assertLess((t1 - t2).abs().max(), 1e-4)
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if __name__ == '__main__':
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unittest.main()
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