[PATCH 3 of 3 evolve-ext-V2] evolve: add another test for evolve --rev

[Laurent Charignon]

# HG changeset patch
# User Laurent Charignon <lcharignon at fb.com>
# Date 1433283852 25200
#      Tue Jun 02 15:24:12 2015 -0700
# Node ID 83f04b844505e476b2ef34ae421d26ca1a005b9e
# Parent  6879fbece398d989eb4473b7f3067b2d10f7d6ee
evolve: add another test for evolve --rev

This patch adds one test for three conditions not covered before:
    - evolve --rev on a stack with obsolete commits without successors
    - evolve --rev on two sets of stacks in parallel
    - evolve --rev on a set of stack partially solvable (because all of the
        commits of the stack are not specified with --rev)

diff --git a/tests/test-evolve.t b/tests/test-evolve.t
--- a/tests/test-evolve.t
+++ b/tests/test-evolve.t
@@ -1156,3 +1156,96 @@
   working directory now at 4c0bc042ef3b
   3 changesets pruned
 
+Evolve --rev more complex case: two sets of stacks one with prune an no successor, the other one
+partially solvable
+
+First set of stack:
+  $ mkstack 25 c1_ c2_ c3_ c4_ >/dev/null
+  $ mkstack 25 c1prime c2prime >/dev/null
+  $ mkstack 25 c1second >/dev/null
+  $ hg prune `shaof c1_` -s `shaof c1prime`
+  1 changesets pruned
+  3 new unstable changesets
+  $ hg prune `shaof c2_` -s `shaof c2prime`
+  1 changesets pruned
+  $ hg prune `shaof c1prime` -s `shaof c1second`
+  1 changesets pruned
+  1 new unstable changesets
+
+Second set of stack with no successor for b2_:
+  $ mkstack 25 b1_ b2_ b3_ b4_ >/dev/null
+  $ mkstack 25 b1prime b3prime >/dev/null
+  $ hg prune `shaof b1_` -s `shaof b1prime`
+  1 changesets pruned
+  3 new unstable changesets
+  $ hg prune `shaof b3_` -s `shaof b3prime`
+  1 changesets pruned
+  $ hg prune `shaof b2_`
+  1 changesets pruned
+
+  $ glog -r "25::"
+  @  48:2b5cbe59aeca at default(draft) add b3prime
+  |
+  o  47:aa4f5bf8925e at default(draft) add b1prime
+  |
+  | o  46:26b828ec5bcf at default(draft) add b4_
+  | |
+  | x  45:4f07e8c054ba at default(draft) add b3_
+  | |
+  | x  44:3973f60bfa8c at default(draft) add b2_
+  | |
+  | x  43:cddd50881a87 at default(draft) add b1_
+  |/
+  | o  42:4a34f6744d4b at default(draft) add c1second
+  |/
+  | o  41:1a00113a0d9a at default(draft) add c2prime
+  | |
+  | x  40:c19e337376fa at default(draft) add c1prime
+  |/
+  | o  39:68e72c885d18 at default(draft) add c4_
+  | |
+  | o  38:28172de7eb73 at default(draft) add c3_
+  | |
+  | x  37:e2c8f75d4ecc at default(draft) add c2_
+  | |
+  | x  36:4ce6da951588 at default(draft) add c1_
+  |/
+  o  25:4c0bc042ef3b at default(draft) add j1
+  |
+
+Solve the full second stack and only part of the first one
+  $ echo "(25::) - $(shaof c3_)"
+  (25::) - 28172de7eb73578cf665e868a265caf2a2655c66
+  $ hg evolve --rev "(25::) - $(shaof c3_)"
+  cannot solve instability of 68e72c885d18, skipping
+  move:[41] add c2prime
+  atop:[42] add c1second
+  move:[46] add b4_
+  atop:[48] add b3prime
+  working directory is now at e543e9e71376
+
+Cleanup
+  $ hg evolve --rev "(25::)"
+  move:[38] add c3_
+  atop:[49] add c2prime
+  move:[39] add c4_
+  atop:[51] add c3_
+  working directory is now at 456e647fbe11
+  $ glog -r "25::"
+  @  52:456e647fbe11 at default(draft) add c4_
+  |
+  o  51:07aaa06da467 at default(draft) add c3_
+  |
+  | o  50:e543e9e71376 at default(draft) add b4_
+  | |
+  o |  49:9379d7237601 at default(draft) add c2prime
+  | |
+  | o  48:2b5cbe59aeca at default(draft) add b3prime
+  | |
+  | o  47:aa4f5bf8925e at default(draft) add b1prime
+  | |
+  o |  42:4a34f6744d4b at default(draft) add c1second
+  |/
+  o  25:4c0bc042ef3b at default(draft) add j1
+  |
+