This is a testharness.js-based test.
[FAIL] SLD(rollback) must detect InvalidStateError synchronously when chain is empty
  assert_equals: promise rejected on same task expected "rejected" but got "pending"
[FAIL] addIceCandidate must detect InvalidStateError synchronously when chain is empty
  assert_equals: expected "InvalidStateError" but got "Error"
[FAIL] setParameters does NOT use the operations chain
  assert_true: Empty chain expected true got false
Harness: the test ran to completion.