am 3447c407: Merge change I8f6ac3c9 into eclair

Merge commit '3447c407dc70a365d6d7faade0f3725315d05e54' into eclair-mr2

* commit '3447c407dc70a365d6d7faade0f3725315d05e54':
  Refactor runtest test_defs to allow programmatic creation.