old_contents: import unittest
  import time
  from volvox_biodb_test import AbstractVolvoxBiodbTest
  
  class EmbeddedModeTest( AbstractVolvoxBiodbTest, unittest.TestCase ):
      def baseURL( self ):
          if not self.base_url:
              self.base_url = super( AbstractVolvoxBiodbTest, self ).baseURL() + '?nav=0&tracklist=0&overview=0&tracks=volvox_microarray.bw&loc=ctgA'
          return self.base_url
  
      def test_volvox( self ):
          time.sleep(0.5)
          self.assert_no_js_errors()
          self.browser.close()
  
new_contents: import unittest
  import time
  from volvox_biodb_test import AbstractVolvoxBiodbTest
  
  class EmbeddedModeTest( AbstractVolvoxBiodbTest, unittest.TestCase ):
      def baseURL( self ):
          if not self.base_url:
              self.base_url = super( AbstractVolvoxBiodbTest, self ).baseURL() + '?nav=0&tracklist=0&overview=0&tracks=volvox_microarray.bw_density%2Cvolvox_microarray.bw_xyplot&loc=ctgA'
          return self.base_url
  
      def test_volvox( self ):
          time.sleep(0.5)
          self.assert_no_js_errors()
          self.browser.close()
  
subject: fix embedded-mode selenium test for track rename