comparison tests/test-setdiscovery.t @ 45142:75f6491b66a7

discovery: weaken claim about returned common heads if ancestorsof are given

As the test case shows, the claim is not true in general.

45141:9719e118e4af

  * @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> serve --cmdserver chgunix * (glob) (chg !)
  * @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> -R r1 outgoing r2 *-T{rev} * --config *extensions.blackbox=* (glob)
  * @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> found 101 common and 1 unknown server heads, 1 roundtrips in *.????s (glob)
  * @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> -R r1 outgoing r2 *-T{rev} * --config *extensions.blackbox=* exited 0 after *.?? seconds (glob)
  $ cd ..

45142:75f6491b66a7

  * @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> serve --cmdserver chgunix * (glob) (chg !)
  * @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> -R r1 outgoing r2 *-T{rev} * --config *extensions.blackbox=* (glob)
  * @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> found 101 common and 1 unknown server heads, 1 roundtrips in *.????s (glob)
  * @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> -R r1 outgoing r2 *-T{rev} * --config *extensions.blackbox=* exited 0 after *.?? seconds (glob)
  $ cd ..

Even if the set of revs to discover is restricted, unrelated revs may be
returned as common heads.

  $ mkdir ancestorsof
  $ cd ancestorsof
  $ hg init a
  $ hg clone a b -q
  $ cd b
  $ hg debugbuilddag '.:root *root *root'
  $ hg log -G -T '{node|short}'
  o  fa942426a6fd
  |
  | o  66f7d451a68b
  |/
  o  1ea73414a91b
  
  $ hg push -r 66f7d451a68b -q
  $ hg debugdiscovery --verbose --rev fa942426a6fd
  comparing with $TESTTMP/ancestorsof/a
  searching for changes
  elapsed time:  * seconds (glob)
  heads summary:
    total common heads:          1
      also local heads:          1
      also remote heads:         1
      both:                      1
    local heads:                 2
      common:                    1
      missing:                   1
    remote heads:                1
      common:                    1
      unknown:                   0
  local changesets:              3
    common:                      2
    missing:                     1
  common heads: 66f7d451a68b