annotate tests/test-stablerange.t @ 2130:d784622dd5dc

stablerange: move the range class in the new module

Our ultimate goal is to remove this class for performance reason. however for
now, it contains most of the code we care about so we migrate it as a block
first.

Test for stable ordering capabilities
=====================================

  $ . $TESTDIR/testlib/pythonpath.sh

  $ cat << EOF >> $HGRCPATH
  > [extensions]
  > hgext3rd.evolve =
  > [ui]
  > logtemplate = "{rev} {node|short} {desc} {tags}\n"
  > EOF

Simple linear test
==================

  $ hg init repo_linear
  $ cd repo_linear
  $ hg debugbuilddag '.+6'
  $ hg debugstablerange --rev 1
  rev         node index size depth      obshash
    1 66f7d451a68b     0    2     2 000000000000
    0 1ea73414a91b     0    1     1 000000000000
    1 66f7d451a68b     1    1     2 000000000000
  $ hg debugstablerange --rev 1 > 1.range

bigger subset reuse most of the previous one

  $ hg debugstablerange --rev 4
  rev         node index size depth      obshash
    4 bebd167eb94d     0    5     5 000000000000
    3 2dc09a01254d     0    4     4 000000000000
    3 2dc09a01254d     2    2     4 000000000000
    1 66f7d451a68b     0    2     2 000000000000
    2 01241442b3c2     2    1     3 000000000000
    0 1ea73414a91b     0    1     1 000000000000
    3 2dc09a01254d     3    1     4 000000000000
    1 66f7d451a68b     1    1     2 000000000000
    4 bebd167eb94d     4    1     5 000000000000
  $ hg debugstablerange --rev 4 > 4.range
  $ diff -u 1.range 4.range
  --- 1.range	* (glob)
  +++ 4.range	* (glob)
  @@ -1,4 +1,10 @@
   rev         node index size depth      obshash
  +  4 bebd167eb94d     0    5     5 000000000000
  +  3 2dc09a01254d     0    4     4 000000000000
  +  3 2dc09a01254d     2    2     4 000000000000
     1 66f7d451a68b     0    2     2 000000000000
  +  2 01241442b3c2     2    1     3 000000000000
     0 1ea73414a91b     0    1     1 000000000000
  +  3 2dc09a01254d     3    1     4 000000000000
     1 66f7d451a68b     1    1     2 000000000000
  +  4 bebd167eb94d     4    1     5 000000000000
  [1]

Using a range not ending on 2**N boundary
we fall back on 2**N as much as possible

  $ hg debugstablerange --rev 5
  rev         node index size depth      obshash
    5 c8d03c1b5e94     0    6     6 000000000000
    3 2dc09a01254d     0    4     4 000000000000
    3 2dc09a01254d     2    2     4 000000000000
    1 66f7d451a68b     0    2     2 000000000000
    5 c8d03c1b5e94     4    2     6 000000000000
    2 01241442b3c2     2    1     3 000000000000
    0 1ea73414a91b     0    1     1 000000000000
    3 2dc09a01254d     3    1     4 000000000000
    1 66f7d451a68b     1    1     2 000000000000
    4 bebd167eb94d     4    1     5 000000000000
    5 c8d03c1b5e94     5    1     6 000000000000
  $ hg debugstablerange --rev 5 > 5.range
  $ diff -u 4.range 5.range
  --- 4.range	* (glob)
  +++ 5.range	* (glob)
  @@ -1,10 +1,12 @@
   rev         node index size depth      obshash
  -  4 bebd167eb94d     0    5     5 000000000000
  +  5 c8d03c1b5e94     0    6     6 000000000000
     3 2dc09a01254d     0    4     4 000000000000
     3 2dc09a01254d     2    2     4 000000000000
     1 66f7d451a68b     0    2     2 000000000000
  +  5 c8d03c1b5e94     4    2     6 000000000000
     2 01241442b3c2     2    1     3 000000000000
     0 1ea73414a91b     0    1     1 000000000000
     3 2dc09a01254d     3    1     4 000000000000
     1 66f7d451a68b     1    1     2 000000000000
     4 bebd167eb94d     4    1     5 000000000000
  +  5 c8d03c1b5e94     5    1     6 000000000000
  [1]

Even two unperfect range overlap a lot

  $ hg debugstablerange --rev tip
  rev         node index size depth      obshash
    6 f69452c5b1af     0    7     7 000000000000
    3 2dc09a01254d     0    4     4 000000000000
    6 f69452c5b1af     4    3     7 000000000000
    3 2dc09a01254d     2    2     4 000000000000
    1 66f7d451a68b     0    2     2 000000000000
    5 c8d03c1b5e94     4    2     6 000000000000
    2 01241442b3c2     2    1     3 000000000000
    0 1ea73414a91b     0    1     1 000000000000
    3 2dc09a01254d     3    1     4 000000000000
    1 66f7d451a68b     1    1     2 000000000000
    4 bebd167eb94d     4    1     5 000000000000
    5 c8d03c1b5e94     5    1     6 000000000000
    6 f69452c5b1af     6    1     7 000000000000
  $ hg debugstablerange --rev tip > tip.range
  $ diff -u 5.range tip.range
  --- 5.range	* (glob)
  +++ tip.range	* (glob)
  @@ -1,6 +1,7 @@
   rev         node index size depth      obshash
  -  5 c8d03c1b5e94     0    6     6 000000000000
  +  6 f69452c5b1af     0    7     7 000000000000
     3 2dc09a01254d     0    4     4 000000000000
  +  6 f69452c5b1af     4    3     7 000000000000
     3 2dc09a01254d     2    2     4 000000000000
     1 66f7d451a68b     0    2     2 000000000000
     5 c8d03c1b5e94     4    2     6 000000000000
  @@ -10,3 +11,4 @@
     1 66f7d451a68b     1    1     2 000000000000
     4 bebd167eb94d     4    1     5 000000000000
     5 c8d03c1b5e94     5    1     6 000000000000
  +  6 f69452c5b1af     6    1     7 000000000000
  [1]

  $ cd ..

Case with merge
===============

Simple case: branching is on a boundary
--------------------------------------------

  $ hg init repo_merge_split_on_boundary
  $ cd repo_merge_split_on_boundary
  $ hg debugbuilddag '.:base
  > +3:left
  > <base+3:right
  > <left/right:merge
  > +2:head
  > '
  $ hg log -G
  o  9 0338daf18215 r9 head tip
  |
  o  8 71b32fcf3f71 r8
  |
  o    7 5f18015f9110 r7 merge
  |\
  | o  6 a2f58e9c1e56 r6 right
  | |
  | o  5 3a367db1fabc r5
  | |
  | o  4 e7bd5218ca15 r4
  | |
  o |  3 2dc09a01254d r3 left
  | |
  o |  2 01241442b3c2 r2
  | |
  o |  1 66f7d451a68b r1
  |/
  o  0 1ea73414a91b r0 base
  

Each of the linear branch reuse range internally

(left branch)

  $ hg debugstablerange --rev 'left~2'
  rev         node index size depth      obshash
    1 66f7d451a68b     0    2     2 000000000000
    0 1ea73414a91b     0    1     1 000000000000
    1 66f7d451a68b     1    1     2 000000000000
  $ hg debugstablerange --rev 'left~2' > left-2.range
  $ hg debugstablerange --rev left
  rev         node index size depth      obshash
    3 2dc09a01254d     0    4     4 000000000000
    3 2dc09a01254d     2    2     4 000000000000
    1 66f7d451a68b     0    2     2 000000000000
    2 01241442b3c2     2    1     3 000000000000
    0 1ea73414a91b     0    1     1 000000000000
    3 2dc09a01254d     3    1     4 000000000000
    1 66f7d451a68b     1    1     2 000000000000
  $ hg debugstablerange --rev 'left' > left.range
  $ diff -u left-2.range left.range
  --- left-2.range	* (glob)
  +++ left.range	* (glob)
  @@ -1,4 +1,8 @@
   rev         node index size depth      obshash
  +  3 2dc09a01254d     0    4     4 000000000000
  +  3 2dc09a01254d     2    2     4 000000000000
     1 66f7d451a68b     0    2     2 000000000000
  +  2 01241442b3c2     2    1     3 000000000000
     0 1ea73414a91b     0    1     1 000000000000
  +  3 2dc09a01254d     3    1     4 000000000000
     1 66f7d451a68b     1    1     2 000000000000
  [1]

(right branch)

  $ hg debugstablerange --rev right~2
  rev         node index size depth      obshash
    4 e7bd5218ca15     0    2     2 000000000000
    0 1ea73414a91b     0    1     1 000000000000
    4 e7bd5218ca15     1    1     2 000000000000
  $ hg debugstablerange --rev 'right~2' > right-2.range
  $ hg debugstablerange --rev right
  rev         node index size depth      obshash
    6 a2f58e9c1e56     0    4     4 000000000000
    6 a2f58e9c1e56     2    2     4 000000000000
    4 e7bd5218ca15     0    2     2 000000000000
    0 1ea73414a91b     0    1     1 000000000000
    5 3a367db1fabc     2    1     3 000000000000
    6 a2f58e9c1e56     3    1     4 000000000000
    4 e7bd5218ca15     1    1     2 000000000000
  $ hg debugstablerange --rev 'right' > right.range
  $ diff -u right-2.range right.range
  --- right-2.range	* (glob)
  +++ right.range	* (glob)
  @@ -1,4 +1,8 @@
   rev         node index size depth      obshash
  +  6 a2f58e9c1e56     0    4     4 000000000000
  +  6 a2f58e9c1e56     2    2     4 000000000000
     4 e7bd5218ca15     0    2     2 000000000000
     0 1ea73414a91b     0    1     1 000000000000
  +  5 3a367db1fabc     2    1     3 000000000000
  +  6 a2f58e9c1e56     3    1     4 000000000000
     4 e7bd5218ca15     1    1     2 000000000000
  [1]

The merge reuse as much of the slicing created for one of the branch

  $ hg debugstablerange --rev merge
  rev         node index size depth      obshash
    7 5f18015f9110     0    8     8 000000000000
    3 2dc09a01254d     0    4     4 000000000000
    7 5f18015f9110     4    4     8 000000000000
    3 2dc09a01254d     2    2     4 000000000000
    5 3a367db1fabc     1    2     3 000000000000
    7 5f18015f9110     6    2     8 000000000000
    1 66f7d451a68b     0    2     2 000000000000
    2 01241442b3c2     2    1     3 000000000000
    0 1ea73414a91b     0    1     1 000000000000
    3 2dc09a01254d     3    1     4 000000000000
    5 3a367db1fabc     2    1     3 000000000000
    7 5f18015f9110     7    1     8 000000000000
    1 66f7d451a68b     1    1     2 000000000000
    6 a2f58e9c1e56     3    1     4 000000000000
    4 e7bd5218ca15     1    1     2 000000000000
  $ hg debugstablerange --rev 'merge' > merge.range
  $ diff -u left.range merge.range
  --- left.range	* (glob)
  +++ merge.range	* (glob)
  @@ -1,8 +1,16 @@
   rev         node index size depth      obshash
  +  7 5f18015f9110     0    8     8 000000000000
     3 2dc09a01254d     0    4     4 000000000000
  +  7 5f18015f9110     4    4     8 000000000000
     3 2dc09a01254d     2    2     4 000000000000
  +  5 3a367db1fabc     1    2     3 000000000000
  +  7 5f18015f9110     6    2     8 000000000000
     1 66f7d451a68b     0    2     2 000000000000
     2 01241442b3c2     2    1     3 000000000000
     0 1ea73414a91b     0    1     1 000000000000
     3 2dc09a01254d     3    1     4 000000000000
  +  5 3a367db1fabc     2    1     3 000000000000
  +  7 5f18015f9110     7    1     8 000000000000
     1 66f7d451a68b     1    1     2 000000000000
  +  6 a2f58e9c1e56     3    1     4 000000000000
  +  4 e7bd5218ca15     1    1     2 000000000000
  [1]
  $ diff -u right.range merge.range
  --- right.range	* (glob)
  +++ merge.range	* (glob)
  @@ -1,8 +1,16 @@
   rev         node index size depth      obshash
  -  6 a2f58e9c1e56     0    4     4 000000000000
  -  6 a2f58e9c1e56     2    2     4 000000000000
  -  4 e7bd5218ca15     0    2     2 000000000000
  +  7 5f18015f9110     0    8     8 000000000000
  +  3 2dc09a01254d     0    4     4 000000000000
  +  7 5f18015f9110     4    4     8 000000000000
  +  3 2dc09a01254d     2    2     4 000000000000
  +  5 3a367db1fabc     1    2     3 000000000000
  +  7 5f18015f9110     6    2     8 000000000000
  +  1 66f7d451a68b     0    2     2 000000000000
  +  2 01241442b3c2     2    1     3 000000000000
     0 1ea73414a91b     0    1     1 000000000000
  +  3 2dc09a01254d     3    1     4 000000000000
     5 3a367db1fabc     2    1     3 000000000000
  +  7 5f18015f9110     7    1     8 000000000000
  +  1 66f7d451a68b     1    1     2 000000000000
     6 a2f58e9c1e56     3    1     4 000000000000
     4 e7bd5218ca15     1    1     2 000000000000
  [1]
  $ cd ..

slice create multiple heads
---------------------------

  $ hg init repo_merge_split_heads
  $ cd repo_merge_split_heads
  $ hg debugbuilddag '.:base
  > +4:left
  > <base+5:right
  > <left/right:merge
  > +2:head
  > '
  $ hg debugbuilddag '.:base
  > +3:left
  > <base+3:right
  > <left/right:merge
  > +2:head
  > '
  abort: repository is not empty
  [255]
  $ hg log -G
  o  12 e6b8d5b46647 r12 head tip
  |
  o  11 485383494a89 r11
  |
  o    10 8aca7f8c9bd2 r10 merge
  |\
  | o  9 f4b7da68b467 r9 right
  | |
  | o  8 857477a9aebb r8
  | |
  | o  7 42b07e8da27d r7
  | |
  | o  6 b9bc20507e0b r6
  | |
  | o  5 de561312eff4 r5
  | |
  o |  4 bebd167eb94d r4 left
  | |
  o |  3 2dc09a01254d r3
  | |
  o |  2 01241442b3c2 r2
  | |
  o |  1 66f7d451a68b r1
  |/
  o  0 1ea73414a91b r0 base
  

Each of the linear branch reuse range internally

(left branch)

  $ hg debugstablerange --rev 'left~2'
  rev         node index size depth      obshash
    2 01241442b3c2     0    3     3 000000000000
    1 66f7d451a68b     0    2     2 000000000000
    2 01241442b3c2     2    1     3 000000000000
    0 1ea73414a91b     0    1     1 000000000000
    1 66f7d451a68b     1    1     2 000000000000
  $ hg debugstablerange --rev 'left~2' > left-2.range
  $ hg debugstablerange --rev left
  rev         node index size depth      obshash
    4 bebd167eb94d     0    5     5 000000000000
    3 2dc09a01254d     0    4     4 000000000000
    3 2dc09a01254d     2    2     4 000000000000
    1 66f7d451a68b     0    2     2 000000000000
    2 01241442b3c2     2    1     3 000000000000
    0 1ea73414a91b     0    1     1 000000000000
    3 2dc09a01254d     3    1     4 000000000000
    1 66f7d451a68b     1    1     2 000000000000
    4 bebd167eb94d     4    1     5 000000000000
  $ hg debugstablerange --rev 'left' > left.range
  $ diff -u left-2.range left.range
  --- left-2.range	* (glob)
  +++ left.range	* (glob)
  @@ -1,6 +1,10 @@
   rev         node index size depth      obshash
  -  2 01241442b3c2     0    3     3 000000000000
  +  4 bebd167eb94d     0    5     5 000000000000
  +  3 2dc09a01254d     0    4     4 000000000000
  +  3 2dc09a01254d     2    2     4 000000000000
     1 66f7d451a68b     0    2     2 000000000000
     2 01241442b3c2     2    1     3 000000000000
     0 1ea73414a91b     0    1     1 000000000000
  +  3 2dc09a01254d     3    1     4 000000000000
     1 66f7d451a68b     1    1     2 000000000000
  +  4 bebd167eb94d     4    1     5 000000000000
  [1]

(right branch)

  $ hg debugstablerange --rev right~2
  rev         node index size depth      obshash
    7 42b07e8da27d     0    4     4 000000000000
    7 42b07e8da27d     2    2     4 000000000000
    5 de561312eff4     0    2     2 000000000000
    0 1ea73414a91b     0    1     1 000000000000
    7 42b07e8da27d     3    1     4 000000000000
    6 b9bc20507e0b     2    1     3 000000000000
    5 de561312eff4     1    1     2 000000000000
  $ hg debugstablerange --rev 'right~2' > right-2.range
  $ hg debugstablerange --rev right
  rev         node index size depth      obshash
    9 f4b7da68b467     0    6     6 000000000000
    7 42b07e8da27d     0    4     4 000000000000
    7 42b07e8da27d     2    2     4 000000000000
    5 de561312eff4     0    2     2 000000000000
    9 f4b7da68b467     4    2     6 000000000000
    0 1ea73414a91b     0    1     1 000000000000
    7 42b07e8da27d     3    1     4 000000000000
    8 857477a9aebb     4    1     5 000000000000
    6 b9bc20507e0b     2    1     3 000000000000
    5 de561312eff4     1    1     2 000000000000
    9 f4b7da68b467     5    1     6 000000000000
  $ hg debugstablerange --rev 'right' > right.range
  $ diff -u right-2.range right.range
  --- right-2.range	* (glob)
  +++ right.range	* (glob)
  @@ -1,8 +1,12 @@
   rev         node index size depth      obshash
  +  9 f4b7da68b467     0    6     6 000000000000
     7 42b07e8da27d     0    4     4 000000000000
     7 42b07e8da27d     2    2     4 000000000000
     5 de561312eff4     0    2     2 000000000000
  +  9 f4b7da68b467     4    2     6 000000000000
     0 1ea73414a91b     0    1     1 000000000000
     7 42b07e8da27d     3    1     4 000000000000
  +  8 857477a9aebb     4    1     5 000000000000
     6 b9bc20507e0b     2    1     3 000000000000
     5 de561312eff4     1    1     2 000000000000
  +  9 f4b7da68b467     5    1     6 000000000000
  [1]

In this case, the bottom of the split will have multiple heads,

So we'll create more than 1 subrange out of it.

We are still able to reuse one of the branch however

  $ hg debugstablerange --rev merge
  rev         node index size depth      obshash
   10 8aca7f8c9bd2     0   11    11 000000000000
    4 bebd167eb94d     0    5     5 000000000000
    3 2dc09a01254d     0    4     4 000000000000
    7 42b07e8da27d     0    4     4 000000000000
   10 8aca7f8c9bd2     8    3    11 000000000000
    3 2dc09a01254d     2    2     4 000000000000
    7 42b07e8da27d     2    2     4 000000000000
    1 66f7d451a68b     0    2     2 000000000000
    5 de561312eff4     0    2     2 000000000000
    9 f4b7da68b467     4    2     6 000000000000
    2 01241442b3c2     2    1     3 000000000000
    0 1ea73414a91b     0    1     1 000000000000
    3 2dc09a01254d     3    1     4 000000000000
    7 42b07e8da27d     3    1     4 000000000000
    1 66f7d451a68b     1    1     2 000000000000
    8 857477a9aebb     4    1     5 000000000000
   10 8aca7f8c9bd2    10    1    11 000000000000
    6 b9bc20507e0b     2    1     3 000000000000
    4 bebd167eb94d     4    1     5 000000000000
    5 de561312eff4     1    1     2 000000000000
    9 f4b7da68b467     5    1     6 000000000000
  $ hg debugstablerange --rev 'merge' > merge.range
  $ diff -u left.range merge.range
  --- left.range	* (glob)
  +++ merge.range	* (glob)
  @@ -1,10 +1,22 @@
   rev         node index size depth      obshash
  + 10 8aca7f8c9bd2     0   11    11 000000000000
     4 bebd167eb94d     0    5     5 000000000000
     3 2dc09a01254d     0    4     4 000000000000
  +  7 42b07e8da27d     0    4     4 000000000000
  + 10 8aca7f8c9bd2     8    3    11 000000000000
     3 2dc09a01254d     2    2     4 000000000000
  +  7 42b07e8da27d     2    2     4 000000000000
     1 66f7d451a68b     0    2     2 000000000000
  +  5 de561312eff4     0    2     2 000000000000
  +  9 f4b7da68b467     4    2     6 000000000000
     2 01241442b3c2     2    1     3 000000000000
     0 1ea73414a91b     0    1     1 000000000000
     3 2dc09a01254d     3    1     4 000000000000
  +  7 42b07e8da27d     3    1     4 000000000000
     1 66f7d451a68b     1    1     2 000000000000
  +  8 857477a9aebb     4    1     5 000000000000
  + 10 8aca7f8c9bd2    10    1    11 000000000000
  +  6 b9bc20507e0b     2    1     3 000000000000
     4 bebd167eb94d     4    1     5 000000000000
  +  5 de561312eff4     1    1     2 000000000000
  +  9 f4b7da68b467     5    1     6 000000000000
  [1]
  $ diff -u right.range merge.range
  --- right.range	* (glob)
  +++ merge.range	* (glob)
  @@ -1,12 +1,22 @@
   rev         node index size depth      obshash
  -  9 f4b7da68b467     0    6     6 000000000000
  + 10 8aca7f8c9bd2     0   11    11 000000000000
  +  4 bebd167eb94d     0    5     5 000000000000
  +  3 2dc09a01254d     0    4     4 000000000000
     7 42b07e8da27d     0    4     4 000000000000
  + 10 8aca7f8c9bd2     8    3    11 000000000000
  +  3 2dc09a01254d     2    2     4 000000000000
     7 42b07e8da27d     2    2     4 000000000000
  +  1 66f7d451a68b     0    2     2 000000000000
     5 de561312eff4     0    2     2 000000000000
     9 f4b7da68b467     4    2     6 000000000000
  +  2 01241442b3c2     2    1     3 000000000000
     0 1ea73414a91b     0    1     1 000000000000
  +  3 2dc09a01254d     3    1     4 000000000000
     7 42b07e8da27d     3    1     4 000000000000
  +  1 66f7d451a68b     1    1     2 000000000000
     8 857477a9aebb     4    1     5 000000000000
  + 10 8aca7f8c9bd2    10    1    11 000000000000
     6 b9bc20507e0b     2    1     3 000000000000
  +  4 bebd167eb94d     4    1     5 000000000000
     5 de561312eff4     1    1     2 000000000000
     9 f4b7da68b467     5    1     6 000000000000
  [1]

Range above the merge, reuse subrange from the merge

  $ hg debugstablerange --rev tip
  rev         node index size depth      obshash
   12 e6b8d5b46647     0   13    13 000000000000
    4 bebd167eb94d     0    5     5 000000000000
   12 e6b8d5b46647     8    5    13 000000000000
    3 2dc09a01254d     0    4     4 000000000000
    7 42b07e8da27d     0    4     4 000000000000
   11 485383494a89     8    4    12 000000000000
    3 2dc09a01254d     2    2     4 000000000000
    7 42b07e8da27d     2    2     4 000000000000
   11 485383494a89    10    2    12 000000000000
    1 66f7d451a68b     0    2     2 000000000000
    5 de561312eff4     0    2     2 000000000000
    9 f4b7da68b467     4    2     6 000000000000
    2 01241442b3c2     2    1     3 000000000000
    0 1ea73414a91b     0    1     1 000000000000
    3 2dc09a01254d     3    1     4 000000000000
    7 42b07e8da27d     3    1     4 000000000000
   11 485383494a89    11    1    12 000000000000
    1 66f7d451a68b     1    1     2 000000000000
    8 857477a9aebb     4    1     5 000000000000
   10 8aca7f8c9bd2    10    1    11 000000000000
    6 b9bc20507e0b     2    1     3 000000000000
    4 bebd167eb94d     4    1     5 000000000000
    5 de561312eff4     1    1     2 000000000000
   12 e6b8d5b46647    12    1    13 000000000000
    9 f4b7da68b467     5    1     6 000000000000
  $ hg debugstablerange --rev 'tip' > tip.range
  $ diff -u merge.range tip.range
  --- merge.range	* (glob)
  +++ tip.range	* (glob)
  @@ -1,11 +1,13 @@
   rev         node index size depth      obshash
  - 10 8aca7f8c9bd2     0   11    11 000000000000
  + 12 e6b8d5b46647     0   13    13 000000000000
     4 bebd167eb94d     0    5     5 000000000000
  + 12 e6b8d5b46647     8    5    13 000000000000
     3 2dc09a01254d     0    4     4 000000000000
     7 42b07e8da27d     0    4     4 000000000000
  - 10 8aca7f8c9bd2     8    3    11 000000000000
  + 11 485383494a89     8    4    12 000000000000
     3 2dc09a01254d     2    2     4 000000000000
     7 42b07e8da27d     2    2     4 000000000000
  + 11 485383494a89    10    2    12 000000000000
     1 66f7d451a68b     0    2     2 000000000000
     5 de561312eff4     0    2     2 000000000000
     9 f4b7da68b467     4    2     6 000000000000
  @@ -13,10 +15,12 @@
     0 1ea73414a91b     0    1     1 000000000000
     3 2dc09a01254d     3    1     4 000000000000
     7 42b07e8da27d     3    1     4 000000000000
  + 11 485383494a89    11    1    12 000000000000
     1 66f7d451a68b     1    1     2 000000000000
     8 857477a9aebb     4    1     5 000000000000
    10 8aca7f8c9bd2    10    1    11 000000000000
     6 b9bc20507e0b     2    1     3 000000000000
     4 bebd167eb94d     4    1     5 000000000000
     5 de561312eff4     1    1     2 000000000000
  + 12 e6b8d5b46647    12    1    13 000000000000
     9 f4b7da68b467     5    1     6 000000000000
  [1]

  $ cd ..

Tests range with criss cross merge in the graph
===============================================

  $ hg init repo_criss_cross
  $ cd repo_criss_cross
  $ hg debugbuilddag '
  > ..:g   # 2 nodes, tagged "g"
  > <2.:h   # another node base one -2 -> 0, tagged "h"
  > *1/2:m # merge -1 and -2 (1, 2), tagged "m"
  > <2+2:i # 2 nodes based on -2, tag head as "i"
  > .:c    # 1 node tagged "c"
  > <m+3:a # 3 nodes base on the "m" tag
  > <2.:b  # 1 node based on -2; tagged "b"
  > <m+2:d # 2 nodes from "m" tagged "d"
  > <2.:e  # 1 node based on -2, tagged "e"
  > <m+1:f # 1 node based on "m" tagged "f"
  > <i/f   # merge "i" and "f"
  > '
  $ hg log -G
  o    15 1d8d22637c2d r15 tip
  |\
  | o  14 43227190fef8 r14 f
  | |
  | | o  13 b4594d867745 r13 e
  | | |
  | | | o  12 e46a4836065c r12 d
  | | |/
  | | o  11 bab5d5bf48bd r11
  | |/
  | | o  10 ff43616e5d0f r10 b
  | | |
  | | | o  9 dcbb326fdec2 r9 a
  | | |/
  | | o  8 d62d843c9a01 r8
  | | |
  | | o  7 e7d9710d9fc6 r7
  | |/
  +---o  6 2702dd0c91e7 r6 c
  | |
  o |  5 f0f3ef9a6cd5 r5 i
  | |
  o |  4 4c748ffd1a46 r4
  | |
  | o  3 2b6d669947cd r3 m
  |/|
  o |  2 fa942426a6fd r2 h
  | |
  | o  1 66f7d451a68b r1 g
  |/
  o  0 1ea73414a91b r0
  
  $ hg debugstablerange --rev 'head()'
  rev         node index size depth      obshash
   15 1d8d22637c2d     0    8     8 000000000000
    9 dcbb326fdec2     0    7     7 000000000000
   10 ff43616e5d0f     0    7     7 000000000000
   13 b4594d867745     0    6     6 000000000000
   12 e46a4836065c     0    6     6 000000000000
    6 2702dd0c91e7     0    5     5 000000000000
   15 1d8d22637c2d     4    4     8 000000000000
    3 2b6d669947cd     0    4     4 000000000000
    5 f0f3ef9a6cd5     0    4     4 000000000000
    9 dcbb326fdec2     4    3     7 000000000000
   10 ff43616e5d0f     4    3     7 000000000000
   15 1d8d22637c2d     6    2     8 000000000000
    3 2b6d669947cd     2    2     4 000000000000
    1 66f7d451a68b     0    2     2 000000000000
   13 b4594d867745     4    2     6 000000000000
    8 d62d843c9a01     4    2     6 000000000000
   12 e46a4836065c     4    2     6 000000000000
    5 f0f3ef9a6cd5     2    2     4 000000000000
    2 fa942426a6fd     0    2     2 000000000000
   15 1d8d22637c2d     7    1     8 000000000000
    0 1ea73414a91b     0    1     1 000000000000
    6 2702dd0c91e7     4    1     5 000000000000
    3 2b6d669947cd     3    1     4 000000000000
   14 43227190fef8     4    1     5 000000000000
    4 4c748ffd1a46     2    1     3 000000000000
    1 66f7d451a68b     1    1     2 000000000000
   13 b4594d867745     5    1     6 000000000000
   11 bab5d5bf48bd     4    1     5 000000000000
    8 d62d843c9a01     5    1     6 000000000000
    9 dcbb326fdec2     6    1     7 000000000000
   12 e46a4836065c     5    1     6 000000000000
    7 e7d9710d9fc6     4    1     5 000000000000
    5 f0f3ef9a6cd5     3    1     4 000000000000
    2 fa942426a6fd     1    1     2 000000000000
   10 ff43616e5d0f     6    1     7 000000000000
  $ cd ..