diff -r 4fd0db2f6d84 -r 474db2d60202 tests/test-evolve.t
--- a/tests/test-evolve.t	Mon Apr 25 16:24:42 2016 -0700
+++ b/tests/test-evolve.t	Mon Apr 25 16:24:42 2016 -0700
@@ -1468,11 +1468,26 @@
   $ hg metaedit -r 0
   abort: cannot edit commit information for public revisions
   [255]
+  $ hg metaedit --fold
+  abort: revisions must be specified with --fold
+  [255]
+  $ hg metaedit -r 0 --fold
+  abort: cannot fold public revisions
+  [255]
+  $ hg metaedit '36 + 42' --fold
+  abort: cannot fold non-linear revisions (multiple roots given)
+  [255]
+  $ hg metaedit '36::39 + 41' --fold
+  abort: cannot fold non-linear revisions (multiple heads given)
+  [255]
 check that metaedit respects allowunstable
   $ hg metaedit '.^' --config 'experimental.evolution=createmarkers, allnewcommands'
   abort: cannot edit commit information in the middle of a stack
   (c904da5245b0 will be affected)
   [255]
+  $ hg metaedit '18::20' --fold --config 'experimental.evolution=createmarkers, allnewcommands'
+  abort: cannot fold chain not ending with a head or with branching
+  [255]
   $ hg metaedit --user foobar
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg log --template '{rev}: {author}\n' -r '42:' --hidden
@@ -1483,26 +1498,57 @@
 
 TODO: support this
   $ hg metaedit '.^::.'
-  abort: editing multiple revisions is not currently supported
+  abort: editing multiple revisions without --fold is not currently supported
   [255]
 
+  $ HGEDITOR=cat hg metaedit '.^::.' --fold
+  HG: This is a fold of 2 changesets.
+  HG: Commit message of changeset 41.
+  
+  amended
+  
+  HG: Commit message of changeset 43.
+  
+  will be evolved safely
+  
+  
+  
+  HG: Enter commit message.  Lines beginning with 'HG:' are removed.
+  HG: Leave message empty to abort commit.
+  HG: --
+  HG: user: test
+  HG: branch 'default'
+  HG: changed a
+  HG: changed newfile
+  2 changesets folded
+  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+
+  $ glog -r .
+  @  44:41bf1183869c@default(draft) amended
+  |
+  ~
+
 no new commit is created here because the date is the same
   $ HGEDITOR=cat hg metaedit
+  amended
+  
+  
   will be evolved safely
   
   
   HG: Enter commit message.  Lines beginning with 'HG:' are removed.
   HG: Leave message empty to abort commit.
   HG: --
-  HG: user: foobar
+  HG: user: test
   HG: branch 'default'
   HG: changed a
+  HG: changed newfile
   nothing changed
 
   $ glog -r '.^::.'
-  @  43:62353add3dfb@default(draft) will be evolved safely
+  @  44:41bf1183869c@default(draft) amended
   |
-  o  41:34ae045ec400@default(draft) amended
+  o  36:43c3f5ef149f@default(draft) add uu
   |
   ~
 
@@ -1510,15 +1556,22 @@
   $ hg metaedit --config defaults.metaedit=
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg log -r '.^::.' --template '{rev}: {desc|firstline}\n'
-  41: amended
-  44: will be evolved safely
+  36: add uu
+  45: amended
 
   $ hg up .^
-  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  $ hg metaedit --user foobar2 44
+  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  $ hg metaedit --user foobar2 45
   $ hg log --template '{rev}: {author}\n' -r '42:' --hidden
   42: test
   43: foobar
-  44: foobar
-  45: foobar2
-  $ hg diff -r 44 -r 45 --hidden
+  44: test
+  45: test
+  46: foobar2
+  $ hg diff -r 45 -r 46 --hidden
+
+'fold' one commit
+  $ hg metaedit 39 --fold --user foobar3
+  1 changesets folded
+  $ hg log -r 47 --template '{rev}: {author}\n'
+  47: foobar3