1) Vertices v Should be correct!:
     Error: timeout of 2000ms exceeded. Ensure the done() callback is being called in this test.


  2) Vertices v "before each" hook:
     Error: Connection is already registered.
      at Array.async.auto.app (main.js:31:17)
      at module.exports (main.js:29:11)
      at Context.<anonymous> (FILE2.js:12:13)

  3) Vertices Paths shortestPath:
     ReferenceError: app is not defined
      at Context.<anonymous> (FILE2.js:41:13)

  4) Vertices Paths linkBoth:
     ReferenceError: app is not defined
      at Context.<anonymous> (FILE2.js:48:13)