@gmod/jbrowse/tests/js_tests/spec/SequenceTrack.spec.js

JBrowse - client-side genome browser

require([
            'JBrowse/Browser',
            'JBrowse/View/Track/Sequence'
        ], function( Browser, SequenceTrack ) {

describe( 'sequence track', function() {

              it( 'test track rendering', function() {
                  var browser = new Browser({unitTestMode: true});
                  

                  var output = dojo.create('div', {
                      style: {
                          display: 'none'
                      }
                  }, document.body);
                  var track = new SequenceTrack({
                      browser: browser
                  });
                  track.div = output;
                  track.blockHeights=[];
                  track.heightUpdateCallback=function(){};

                  var block = {
                      startBase: 0,
                      endBase: 6,
                      domNode: output
                  };

                  track._fillSequenceBlock(block, 0, 25, "XXATGATGATGATGATGATGXX");
                  console.log(output);


                  var f = output.children[2].children[0].children[0].children;
                  var arr = Array.prototype.slice.call(f);
                  var seq = arr.map(function(elt) {
                      return elt.innerHTML;
                  }).join('');
                  expect('MMMMMM').toEqual(seq)

                  var f = output.children[1].children[0].children[0].children;
                  var arr = Array.prototype.slice.call(f);
                  var seq = arr.map(function(elt) {
                      return elt.innerHTML;
                  }).join('');
                  expect('***** ').toEqual(seq)

                  var f = output.children[4].children[0].children[0].children;
                  var arr = Array.prototype.slice.call(f);
                  var seq = arr.map(function(elt) {
                      return elt.innerHTML;
                  }).join('');
                  expect('HHHHHH').toEqual(seq)

                  dojo.empty(output)

                  track._fillSequenceBlock(block, 0, 1, "XXATGATGATGATGATGATGXX");
                  console.log(output);


                  var f = output.children[2].children[0].children[0].children;
                  var arr = Array.prototype.slice.call(f);
                  var seq = arr.map(function(elt) {
                      console.log(elt.className)
                      return dojo.hasClass(elt, 'aminoAcid_start')?'M':'X';
                  }).join('');
                  expect('MMMMMM').toEqual(seq)

                  var f = output.children[1].children[0].children[0].children;
                  var arr = Array.prototype.slice.call(f);
                  var seq = arr.map(function(elt) {
                      return dojo.hasClass(elt, 'aminoAcid_stop')?'*':'X';
                  }).join('');
                  expect('*****X').toEqual(seq)

                  var f = output.children[4].children[0].children[0].children;
                  var arr = Array.prototype.slice.call(f);
                  var seq = arr.map(function(elt) {
                      return dojo.hasClass(elt, 'aminoAcid_h')?'H':'X';
                  }).join('');
                  expect('HHHHHH').toEqual(seq)
              });
}
);
});