new_contents: from biokit.converters.bam2sam import BAM2SAM
  from biokit import biokit_data
  from easydev import TempFile, md5
  
  
  def test_conv():
      infile = biokit_data("converters/measles.sorted.bam")
      #outfile = biokit_data("converters/measles.sam")
      with TempFile(suffix=".bam") as tempfile:
          convert = BAM2SAM(infile, tempfile.name)
          convert()
  
          # Check that the output is correct with a checksum
          # Note that we cannot test the md5 on a gzip file but only 
          # on the original data. This check sum was computed
          # fro the unzipped version of biokit/data/converters/measles.bed
          #assert md5(tempfile.name) == md5(outfile)
          # output is a SAM that can be read and must have 
          import pysam
          sam = pysam.AlignmentFile(tempfile.name)
          assert sam.count() == 60
  
subject: add new tests