diff tests/test-evolve-obshistory.t @ 2411:bd937b7ce7d2

debugobshistory: handle multiple cycles

We previously handled up to one cycle only. This is now fixed.

--- a/tests/test-evolve-obshistory.t	Thu May 18 14:49:02 2017 +0200
+++ b/tests/test-evolve-obshistory.t	Thu May 18 14:58:22 2017 +0200
@@ -1315,3 +1315,133 @@
   |    rewritten by test (*20*) as a8df460dbbfe (glob)
   |
 
+Test with multiple cyles
+========================
+
+Test setup
+----------
+
+  $ hg init $TESTTMP/multiple-cycle
+  $ cd $TESTTMP/multiple-cycle
+  $ mkcommit ROOT
+  $ mkcommit A
+  $ mkcommit B
+  $ mkcommit C
+  $ mkcommit D
+  $ mkcommit E
+  $ mkcommit F
+  $ hg log -G
+  @  changeset:   6:d9f908fde1a1
+  |  tag:         tip
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     F
+  |
+  o  changeset:   5:0da815c333f6
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     E
+  |
+  o  changeset:   4:868d2e0eb19c
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     D
+  |
+  o  changeset:   3:a8df460dbbfe
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     C
+  |
+  o  changeset:   2:c473644ee0e9
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     B
+  |
+  o  changeset:   1:2a34000d3544
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     A
+  |
+  o  changeset:   0:ea207398892e
+     user:        test
+     date:        Thu Jan 01 00:00:00 1970 +0000
+     summary:     ROOT
+  
+Create a first cycle
+  $ hg prune -s "desc(B)" "desc(A)"
+  1 changesets pruned
+  5 new unstable changesets
+  $ hg prune -s "desc(C)" "desc(B)"
+  1 changesets pruned
+  $ hg prune --split -s "desc(A)" -s "desc(D)" "desc(C)"
+  1 changesets pruned
+And create a second one
+  $ hg prune -s "desc(E)" "desc(D)"
+  1 changesets pruned
+  $ hg prune -s "desc(F)" "desc(E)"
+  1 changesets pruned
+  $ hg prune -s "desc(D)" "desc(F)"
+  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
+  working directory now at 868d2e0eb19c
+  1 changesets pruned
+  $ hg log --hidden -G
+  x  changeset:   6:d9f908fde1a1
+  |  tag:         tip
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     F
+  |
+  x  changeset:   5:0da815c333f6
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     E
+  |
+  @  changeset:   4:868d2e0eb19c
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     D
+  |
+  x  changeset:   3:a8df460dbbfe
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     C
+  |
+  x  changeset:   2:c473644ee0e9
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     B
+  |
+  x  changeset:   1:2a34000d3544
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     A
+  |
+  o  changeset:   0:ea207398892e
+     user:        test
+     date:        Thu Jan 01 00:00:00 1970 +0000
+     summary:     ROOT
+  
+Actual test
+-----------
+
+Check that debugobshistory never crash on a cycle
+
+  $ hg debugobshistory "desc(D)" --hidden
+  x  0da815c333f6 (5) E
+  |    rewritten by test (*20*) as d9f908fde1a1 (glob)
+  |
+  @    868d2e0eb19c (4) D
+  |\     rewritten by test (*20*) as 0da815c333f6 (glob)
+  | |
+  | x  d9f908fde1a1 (6) F
+  | |    rewritten by test (*20*) as 868d2e0eb19c (glob)
+  | |
+  +---x  2a34000d3544 (1) A
+  | |      rewritten by test (*20*) as c473644ee0e9 (glob)
+  | |
+  x |  a8df460dbbfe (3) C
+  | |    rewritten by test (*20*) as 2a34000d3544, 868d2e0eb19c (glob)
+  | |
+  x |  c473644ee0e9 (2) B
+  | |    rewritten by test (*20*) as a8df460dbbfe (glob)
+  | |