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"""Tests for deepvariant .dv_vcf_constants."""

from absl.testing import absltest
from absl.testing import parameterized
from third_party.nucleus.protos import reference_pb2
from deepvariant import dv_vcf_constants


class DvVcfConstantsTest(parameterized.TestCase):

  @parameterized.parameters(
      dict(contigs=[], sample_names=[]),
      dict(
          contigs=[reference_pb2.ContigInfo(name='chr1')],
          sample_names=['single_sample'],
      ),
      dict(
          contigs=[
              reference_pb2.ContigInfo(name='1'),
              reference_pb2.ContigInfo(name='2'),
          ],
          sample_names=['multiple', 'samples'],
      ),
  )
  def test_deepvariant_header(self, contigs, sample_names):
    header = dv_vcf_constants.deepvariant_header(
        contigs=contigs, sample_names=sample_names
    )
    self.assertCountEqual(header.contigs, contigs)
    self.assertCountEqual(header.sample_names, sample_names)
    self.assertGreater(len(header.filters), 0)
    self.assertGreater(len(header.infos), 0)
    self.assertGreater(len(header.formats), 0)


if __name__ == '__main__':
  absltest.main()