--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-checkheads-unpushed-D1.t	Wed Mar 29 14:02:46 2017 +0200
@@ -0,0 +1,75 @@
+====================================
+Testing head checking code: Case D-1
+====================================
+
+Mercurial checks for the introduction of multiple heads on push. Evolution
+comes into play to detect if existing heads on the server are being replaced by
+some of the new heads we push.
+
+This test file is part of a series of tests checking this behavior.
+
+Category D: remote head is "obs-affected" locally, but result is not part of the push.
+TestCase 1: remote head is rewritten, but successors is not part of the push
+
+.. old-state:
+..
+.. * 1 changeset branch
+..
+.. new-state:
+..
+.. * 1 changeset branch succeeding the old branch
+.. * 1 new unrelated branch
+..
+.. expected-result:
+..
+.. * pushing only the unrelated branch: denied
+..
+.. graph-summary:
+..
+..   A ø⇠○ A'
+..     |/
+..     | ◔ B
+..     |/
+..     ○
+
+  $ . $TESTDIR/testlib/checkheads-util.sh
+
+Test setup
+----------
+
+  $ setuprepos
+  creating basic server and client repo
+  updating to branch default
+  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  $ cd client
+  $ hg up 0
+  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  $ mkcommit A1
+  created new head
+  $ hg debugobsolete `getid "desc(A0)" ` `getid "desc(A1)"`
+  $ hg up 0
+  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  $ mkcommit B0
+  created new head
+  $ hg log -G --hidden
+  @  74ff5441d343 (draft): B0
+  |
+  | o  f6082bc4ffef (draft): A1
+  |/
+  | x  8aaa48160adc (draft): A0
+  |/
+  o  1e4be0697311 (public): root
+  
+
+Actual testing
+--------------
+
+  $ hg push -r 'desc(B0)'
+  pushing to $TESTTMP/server
+  searching for changes
+  abort: push creates new remote head 74ff5441d343!
+  (merge or see 'hg help push' for details about pushing new heads)
+  [255]
+
+
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-checkheads-unpushed-D2.t	Wed Mar 29 14:02:46 2017 +0200
@@ -0,0 +1,90 @@
+====================================
+Testing head checking code: Case D-2
+====================================
+
+Mercurial checks for the introduction of multiple heads on push. Evolution
+comes into play to detect if existing heads on the server are being replaced by
+some of the new heads we push.
+
+This test file is part of a series of tests checking this behavior.
+
+Category D: remote head is "obs-affected" locally, but result is not part of the push.
+TestCase 1: remote branch has 2 changes, head is pruned, second is rewritten but result is not pushed
+
+.. old-state:
+..
+.. * 1 changeset branch
+..
+.. new-state:
+..
+.. * old head is pruned
+.. * 1 new branch succeeding to the other changeset in the old branch
+.. * 1 new unrelated branch
+..
+.. expected-result:
+..
+.. * push allowed
+.. * pushing only the unrelated branch: denied
+..
+.. graph-summary:
+..
+..   B ⊗
+..     |
+..   A ø⇠○ A'
+..     |/
+..     | ◔ C
+..     |/
+..     ○
+
+  $ . $TESTDIR/testlib/checkheads-util.sh
+
+Test setup
+----------
+
+  $ setuprepos
+  creating basic server and client repo
+  updating to branch default
+  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  $ cd server
+  $ mkcommit B0
+  $ cd ../client
+  $ hg pull
+  pulling from $TESTTMP/server
+  searching for changes
+  adding changesets
+  adding manifests
+  adding file changes
+  added 1 changesets with 1 changes to 1 files
+  (run 'hg update' to get a working copy)
+  $ hg up 0
+  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  $ mkcommit A1
+  created new head
+  $ hg debugobsolete `getid "desc(A0)" ` `getid "desc(A1)"`
+  $ hg debugobsolete `getid "desc(B0)"`
+  $ hg up 0
+  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  $ mkcommit C0
+  created new head
+  $ hg log -G --hidden
+  @  0f88766e02d6 (draft): C0
+  |
+  | o  f6082bc4ffef (draft): A1
+  |/
+  | x  d73caddc5533 (draft): B0
+  | |
+  | x  8aaa48160adc (draft): A0
+  |/
+  o  1e4be0697311 (public): root
+  
+
+Actual testing
+--------------
+
+  $ hg push --rev 'desc(C0)'
+  pushing to $TESTTMP/server
+  searching for changes
+  abort: push creates new remote head 0f88766e02d6!
+  (merge or see 'hg help push' for details about pushing new heads)
+  [255]
+