Update op-node/rollup/derive/espresso_blob_data_source_test.go

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: 2 people

op-node/rollup/derive/espresso_blob_data_source_test.go

@@ -172,6 +172,7 @@ func TestDataAndHashesFromTxsEventAuth(t *testing.T) {
 		require.NoError(t, err)
 		require.Equal(t, 1, len(data))
 		require.Equal(t, 0, len(blobHashes))
+		require.NotNil(t, data[0].calldata)
 		require.Equal(t, eth.Data(calldataTx.Data()), *data[0].calldata) // the authenticated tx, not just any
 		l1F.AssertExpectations(t)
 	})