--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-checkheads-pruned-B6.t Fri Mar 31 15:44:10 2017 +0200
@@ -0,0 +1,74 @@
+====================================
+Testing head checking code: Case B-6
+====================================
+
+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 B: checking simple case involving pruned changesets
+TestCase 6: single changesets, pruned then superseeded (on a new changeset)
+
+.. old-state:
+..
+.. * 1 changeset branch
+..
+.. new-state:
+..
+.. * old branch is rewritten onto another one,
+.. * the new version is then pruned.
+..
+.. expected-result:
+..
+.. * push allowed
+..
+.. 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 B0
+ created new head
+ $ mkcommit A1
+ $ hg up 'desc(B0)'
+ 0 files updated, 0 files merged, 1 files removed, 0 files unresolved
+ $ hg debugobsolete `getid "desc(A0)"` `getid "desc(A1)"`
+ $ hg debugobsolete --record-parents `getid "desc(A1)"`
+ $ hg log -G --hidden
+ x ba93660aff8d (draft): A1
+ |
+ @ 74ff5441d343 (draft): B0
+ |
+ | x 8aaa48160adc (draft): A0
+ |/
+ o 1e4be0697311 (public): root
+
+
+Actual testing
+--------------
+
+ $ hg push
+ pushing to $TESTTMP/server
+ searching for changes
+ adding changesets
+ adding manifests
+ adding file changes
+ added 1 changesets with 1 changes to 1 files (+1 heads)
+ 2 new obsolescence markers