Added vertiflex to api and tests.

Author: soerendomroes

src/js/elk-api.js

@@ -20,7 +20,8 @@ export default class ELK {
         'disco',
         'sporeOverlap',
         'sporeCompaction',
-        'rectpacking'
+        'rectpacking',
+        'vertiflex',
     ],
     workerFactory,
     workerUrl

test/mocha/testLayouters.js

@@ -72,4 +72,12 @@ describe('Layout Algorithms', function() {
     }).should.eventually.be.fulfilled
   })
 
+    it('Rectangle Packing', function() {
+    return elk.layout(graphOverlapping, {
+      layoutOptions: {
+        'algorithm': 'elk.vertiflex'
+      }
+    }).should.eventually.be.fulfilled
+  })
+
 })