changeset 31983:11b6d32e6b2f

obsolescence: add test for the "branch replacement" logic during push, case C2 Mercurial checks for the introduction of new heads on push. Evolution comes into play to detect if existing branches on the server are being replaced by some of the new one we push. The current code for this logic is very basic (eg: issue4354) and was poorly tested. We have a better implementation coming in the evolve extension fixing these issues and with more serious tests coverage. In the process of upstreaming this improved logic, we start with adding the test case that are already passing with the current implementation. Once they are all in, we'll upstream the better implementation and the extra test cases. See inline documentation for details about the test case added in this changeset.
author Pierre-Yves David <pierre-yves.david@ens-lyon.org>
date Thu, 13 Apr 2017 16:26:37 +0200
parents fe83cb0dcafa
children c8f4876c0198
files tests/test-push-checkheads-partial-C2.t
diffstat 1 files changed, 82 insertions(+), 0 deletions(-) [+]
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-push-checkheads-partial-C2.t	Thu Apr 13 16:26:37 2017 +0200
@@ -0,0 +1,82 @@
+====================================
+Testing head checking code: Case C-2
+====================================
+
+Mercurial checks for the introduction of new heads on push. Evolution comes
+into play to detect if existing branches on the server are being replaced by
+some of the new one we push.
+
+This case is part of a series of tests checking this behavior.
+
+Category C: case were the branch is only partially obsoleted
+TestCase 2: 2 changeset branch, only the base is rewritten
+
+.. old-state:
+..
+.. * 2 changeset branch
+..
+.. new-state:
+..
+.. * 1 new changesets branches superceeding only the base of the old one
+.. * The old branch is still alive (base is obsolete, head is alive)
+..
+.. expected-result:
+..
+.. * push denied
+..
+.. graph-summary:
+..
+..   B ○
+..     |
+..   A ø⇠◔ A'
+..     |/
+..     ●
+
+  $ . $TESTDIR/testlib/push-checkheads-util.sh
+
+Test setup
+----------
+
+  $ mkdir C2
+  $ cd C2
+  $ 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/C2/server (glob)
+  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 log -G --hidden
+  @  f6082bc4ffef (draft): A1
+  |
+  | o  d73caddc5533 (draft): B0
+  | |
+  | x  8aaa48160adc (draft): A0
+  |/
+  o  1e4be0697311 (public): root
+  
+
+Actual testing
+--------------
+
+  $ hg push --rev 'desc(A1)'
+  pushing to $TESTTMP/C2/server (glob)
+  searching for changes
+  abort: push creates new remote head f6082bc4ffef!
+  (merge or see 'hg help push' for details about pushing new heads)
+  [255]
+
+  $ cd ../..