view tests/test-dirstate-race.t @ 24162:758dd85b6ad6

test-obsolete: use 'log -T {node}' instead of 'id --debug -i' to lookup hash

I ran into a case when adding a test where there were cryptic hg command line
errors.  I eventually traced it back to 'hg id' printing debug messages before
the hash:

    invalid branchheads cache (served): tip differs <hash>

This method should eliminate any other output except the node.

  $ hg init
  $ echo a > a
  $ hg add a
  $ hg commit -m test

Do we ever miss a sub-second change?:

  $ for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20; do
  >     hg co -qC 0
  >     echo b > a
  >     hg st
  > done
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a
  M a