def METHOD_NAME(self, dtype, sample_rate, num_channels):
    """`soundfile_backend.info` can check wav file correctly"""
    duration = 1
    path = self.get_temp_path("data.wav")
    data = get_wav_data(
        dtype,
        num_channels,
        normalize=False,
        num_frames=duration * sample_rate)
    save_wav(path, data, sample_rate)
    info = soundfile_backend.info(path)
    assert info.sample_rate == sample_rate
    assert info.num_frames == sample_rate * duration
    assert info.num_channels == num_channels
    assert info.bits_per_sample == get_bits_per_sample("wav", dtype)
    assert info.encoding == get_encoding("wav", dtype)