If have this error in unit testing wherein it cant detect the id:

claim.claimReference[claim.claimId[claim.claimants[0].id]]

Currently, I am trying to put a dummy value for this

claim: {
     claimReference: [{
      claim: {
        claimId: [
          {
            claim: {
              claimants: [{
                id: "CM-0000003",
              }],
            },
          },
        ],
      },
    }],
  },

What is my mistake in here? Thank you for your correction.

EDIT: OHH WAIT. I THINK MY QUESTION WAS MISUNDERSTOOD. SORRY. PLEASE SEE THE IMAGE ATTACHED.

ERROR IN UNIT TESTING

WHAT I AM TRYING TO DO IS TO HAVE A DUMMY VALUE SO THAT I COULD SATISFY THE claim.claimReference[claim.claimId[claim.claimants[0].id]]