[PATCH] test-rebase-base: add test cases about multiple branches with merges

[Jun Wu]

# HG changeset patch
# User Jun Wu <quark at fb.com>
# Date 1480077830 0
#      Fri Nov 25 12:43:50 2016 +0000
# Node ID c0a9c4c2c6ae2a779c060dc2424942099d7c984d
# Parent  fd4175ec0f4e9bd68f4bfdcd601e11d77499d486
# Available At https://bitbucket.org/quark-zju/hg-draft
#              hg pull https://bitbucket.org/quark-zju/hg-draft -r c0a9c4c2c6ae
test-rebase-base: add test cases about multiple branches with merges

This helps clarify the current behavior. When a merge changeset is selected
in --base directly, only one path will be chosen. The behavior remains the
same before and after "rebase: calculate ancestors for --base separately
(issue5420)".

diff --git a/tests/test-rebase-base.t b/tests/test-rebase-base.t
--- a/tests/test-rebase-base.t
+++ b/tests/test-rebase-base.t
@@ -93,2 +93,169 @@ Mixed rebasable and non-rebasable bases 
   nothing to rebase
   [1]
+
+  $ cd ..
+
+Multiple branches with merges:
+
+  $ hg init b
+  $ cd b
+
+  $ hg debugdrawdag <<EOS
+  > h   g
+  > |  /|
+  > | f |
+  > |/ /
+  > | e
+  > |/  d
+  > |  /|
+  > | c |
+  > |/ /
+  > | b
+  > |/
+  > a
+  > EOS
+
+  $ hg rebase -b b+f -d h
+  rebasing 1:488e1b7e7341 "b" (b)
+  rebasing 6:0c088b72e768 "d" (d)
+  rebasing 4:0e9bbb7dd767 "f" (f)
+  rebasing 7:9bdc802fd225 "g" (g tip)
+  saved backup bundle to $TESTTMP/b/.hg/strip-backup/0e9bbb7dd767-ff8b132b-backup.hg (glob)
+  $ hg tglog
+  o    7: g
+  |\
+  | o  6: f
+  | |
+  | | o    5: d
+  | | |\
+  | +---o  4: b
+  | | |
+  | o |  3: h
+  | | |
+  o | |  2: e
+  |/ /
+  | o  1: c
+  |/
+  o  0: a
+  
+  $ cd ..
+
+Multiple branches with multiple merges:
+
+  $ hg init c
+  $ cd c
+
+  $ hg debugdrawdag <<'EOS'
+  > j     i
+  > |     |
+  > |     h
+  > |    /|
+  > |   g | k
+  > |  /| |/
+  > | f | |
+  > |/ /  |
+  > | e  /
+  > |/  d
+  > |  /|
+  > | c |
+  > |/ /
+  > | b
+  > |/
+  > a
+  > EOS
+  $ hg rebase -b b+f -d j
+  rebasing 1:488e1b7e7341 "b" (b)
+  rebasing 4:0e9bbb7dd767 "f" (f)
+  rebasing 6:0c088b72e768 "d" (d)
+  rebasing 9:91358dadd39b "k" (k)
+  rebasing 7:9bdc802fd225 "g" (g)
+  rebasing 8:91a34cc1f2a7 "h" (h)
+  rebasing 10:f0d5af4cc88e "i" (i tip)
+  saved backup bundle to $TESTTMP/c/.hg/strip-backup/0e9bbb7dd767-6f921be4-backup.hg (glob)
+  $ hg tglog
+  o  10: i
+  |
+  o    9: h
+  |\
+  | o    8: g
+  | |\
+  +-----o  7: k
+  | | |
+  o | |    6: d
+  |\ \ \
+  | | | o  5: f
+  | | | |
+  | o---+  4: b
+  |  / /
+  | | o  3: j
+  | | |
+  | o |  2: e
+  | |/
+  o /  1: c
+  |/
+  o  0: a
+  
+
+  $ cd ..
+
+Pick merge changesets in -b, only one of the two parents is selected:
+
+  $ hg init d
+  $ cd d
+
+  $ hg debugdrawdag <<'EOS'
+  >   dest  n
+  >     |   |\
+  > m   |   g d
+  > |\  |  /|
+  > | l | f |
+  >  \ \|/ /
+  >   k | e
+  > i  \|/  d
+  > |\  |  /|
+  > | h | c |
+  >  \ \|/ /
+  >   j | b
+  >    \|/
+  >     a
+  > EOS
+
+  $ hg rebase -b n+i -d dest
+  rebasing 6:e22eece29d69 "h" (h)
+  rebasing 12:edd90b885ce0 "i" (i)
+  rebasing 1:488e1b7e7341 "b" (b)
+  rebasing 10:0c088b72e768 "d" (d)
+  rebasing 14:f188fc87af23 "n" (n tip)
+  saved backup bundle to $TESTTMP/d/.hg/strip-backup/e22eece29d69-0eeca84a-backup.hg (glob)
+  $ hg tglog
+  o    14: n
+  |\
+  | o    13: d
+  | |\
+  | | o  12: b
+  | | |
+  | | | o    11: i
+  | | | |\
+  | | +---o  10: h
+  | | | |
+  | | | | o    9: m
+  | | | | |\
+  o \ \ \ \ \    8: g
+  |\ \ \ \ \ \
+  | | | | | | o  7: l
+  | | | | | | |
+  | | | | | o |  6: k
+  | | | | | |/
+  | | | | o /  5: j
+  | | | | |/
+  | o-----+  4: f
+  |  / / /
+  o-----+  3: e
+   / / /
+  | o /  2: dest
+  | |/
+  o /  1: c
+  |/
+  o  0: a
+  
+  $ cd ..