diff tests/test-revset.t @ 14070:305c97670d7a

revset: add ^ and ~ operators from parentrevspec extension

^ (Nth parent) and ~ (Nth first ancestor) are infix operators that match
certain ancestors of the set:

  set^0
  the set

  set^1 (also available as set^)
  the first parent of every changeset in set

  set^2
  the second parent of every changeset in set

  set~0
  the set

  set~1
  the first ancestor (i.e. the first parent) of every changeset in set

  set~2
  the second ancestor (i.e. first parent of first parent) of every changeset
  in set

  set~N
  the Nth ancestor (following first parents only) of every changeset in set;
  set~N is equivalent to set^1^1..., with ^1 repeated N times.

--- a/tests/test-revset.t	Sat Apr 30 10:57:13 2011 -0500
+++ b/tests/test-revset.t	Sat Apr 30 17:43:04 2011 +0200
@@ -374,3 +374,32 @@
   4
   2
   9
+
+parentrevspec
+
+  $ log 'merge()^0'
+  6
+  $ log 'merge()^'
+  5
+  $ log 'merge()^1'
+  5
+  $ log 'merge()^2'
+  4
+
+  $ log 'merge()~0'
+  6
+  $ log 'merge()~1'
+  5
+  $ log 'merge()~2'
+  3
+  $ log 'merge()~3'
+  1
+
+  $ log '(-3:tip)^'
+  4
+  6
+  8
+
+  $ log 'tip^foo'
+  hg: parse error: ^ expects a number 0, 1, or 2
+  [255]