old_contents: from puzzle.utils import get_cytoband_coord
  
  def test_get_cytoband_coord():
      chrom = '1'
      pos = 3
      
      assert get_cytoband_coord(chrom, pos) == '1.p36.33'
  
  def test_get_cytoband_coord_chr():
      chrom = 'chr1'
      pos = 3
      
      assert get_cytoband_coord(chrom, pos) == '1.p36.33'
  
  def test_get_cytoband_coord_str_pos():
      chrom = 'chr1'
      pos = '3'
      
      assert get_cytoband_coord(chrom, pos) == '1.p36.33'
  
  def test_get_cytoband_coord_non_existing_chr():
      chrom = 'chrMT'
      pos = '3'
      
      assert get_cytoband_coord(chrom, pos) == None
  
  def test_get_cytoband_coord_non_existing_pos():
      chrom = 'chrX'
      pos = '155270600'
      
      assert get_cytoband_coord(chrom, pos) == None
  
new_contents: from puzzle.utils import get_cytoband_coord
  
  def test_get_cytoband_coord():
      chrom = '1'
      pos = 3
      
      assert get_cytoband_coord(chrom, pos) == '1p36.33'
  
  def test_get_cytoband_coord_chr():
      chrom = 'chr1'
      pos = 3
      
      assert get_cytoband_coord(chrom, pos) == '1p36.33'
  
  def test_get_cytoband_coord_str_pos():
      chrom = 'chr1'
      pos = '3'
      
      assert get_cytoband_coord(chrom, pos) == '1p36.33'
  
  def test_get_cytoband_coord_non_existing_chr():
      chrom = 'chrMT'
      pos = '3'
      
      assert get_cytoband_coord(chrom, pos) == None
  
  def test_get_cytoband_coord_non_existing_pos():
      chrom = 'chrX'
      pos = '155270600'
      
      assert get_cytoband_coord(chrom, pos) == None
  
subject: fix cytoband tests