message: Simplify the assertion.
diff: @@ -1008,7 +1008,8 @@ mod test_harness {
  finalized_values: Vec<Vec<ConsensusValue>>,
  expected_number: usize,
  ) {
  - let reference_order = finalized_values.get(0).cloned().unwrap();
  + let mut iter = finalized_values.into_iter();
  + let reference_order = iter.next().unwrap();
  assert_eq!(
  reference_order.len(),
  @@ -1017,9 +1018,7 @@ mod test_harness {
  expected_number
  );
  - finalized_values
  - .into_iter()
  - .for_each(|v| assert_eq!(v, reference_order));
  + iter.for_each(|v| assert_eq!(v, reference_order));
  }
  #[test]
  