AssertionError in Chunk

Hi, i have this result in the 'Chunk'

AssertionError [ERR_ASSERTION]: Expected values to be strictly deep-equal:

+ actual - expected ... Lines skipped

  [

    [

...

    [

      4,

+     undefined,

+     undefined

    ]

  ]

    at /opt/project/test.ts:25:8

I don't understand what's wrong? Thanks for all Marc