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import numpy as np
import torch

from TTS.vocoder.models.random_window_discriminator import RandomWindowDiscriminator


def test_rwd():
    layer = RandomWindowDiscriminator(
        cond_channels=80,
        window_sizes=(512, 1024, 2048, 4096, 8192),
        cond_disc_downsample_factors=[(8, 4, 2, 2, 2), (8, 4, 2, 2), (8, 4, 2), (8, 4), (4, 2, 2)],
        hop_length=256,
    )
    x = torch.rand([4, 1, 22050])
    c = torch.rand([4, 80, 22050 // 256])

    scores, _ = layer(x, c)
    assert len(scores) == 10
    assert np.all(scores[0].shape == (4, 1, 1))