[PATCH 09 of 10] obsolescence: add test for the "branch replacement" logic during push, case D5

Pierre-Yves David pierre-yves.david at ens-lyon.org
Sat Apr 15 07:27:59 EDT 2017


# HG changeset patch
# User Pierre-Yves David <pierre-yves.david at ens-lyon.org>
# Date 1492217667 -7200
#      Sat Apr 15 02:54:27 2017 +0200
# Node ID 3dce88eb81783127b3f819526ea2402f927c167c
# Parent  1aac9af88e90e8885fee1695f3253652076635a0
# EXP-Topic push.checkheads
# Available At https://www.mercurial-scm.org/repo/users/marmoute/mercurial/
#              hg pull https://www.mercurial-scm.org/repo/users/marmoute/mercurial/ -r 3dce88eb8178
obsolescence: add test for the "branch replacement" logic during push, case D5

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 changeset adds test for the improved "branch replacement" logic introduce
in an earlier commits. This tests initially lived in the evolve extensions.
Since we now have the code handling this logic in core, it make sense to have
the tests in core too.

See inline documentation for details about the test case added in this
changeset.

diff --git a/tests/test-push-checkheads-unpushed-D5.t b/tests/test-push-checkheads-unpushed-D5.t
new file mode 100644
--- /dev/null
+++ b/tests/test-push-checkheads-unpushed-D5.t
@@ -0,0 +1,107 @@
+====================================
+Testing head checking code: Case D-5
+====================================
+
+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 D: remote head is "obs-affected" locally, but result is not part of the push
+TestCase 5: multi-changeset branch, split on multiple other, (head on its own new branch)
+
+.. old-state:
+..
+.. * 2 branch (1 changeset, and 2 changesets)
+..
+.. new-state:
+..
+.. * 1 new branch superceeding the head of the old-2-changesets-branch,
+.. * 1 new changesets on the old-1-changeset-branch superceeding the base of the other
+..
+.. expected-result:
+..
+.. * push the new branch only -> push denied
+.. * push the existing branch only -> push allowed
+..   /!\ This push create unstability/orphaning on the other hand and we should
+..  probably detect/warn agains that.
+..
+.. graph-summary:
+..
+..   B ø⇠◔ B'
+..     | |
+.. A'◔⇢ø |
+..   | |/
+.. C ● |
+..    \|
+..     ●
+
+  $ . $TESTDIR/testlib/push-checkheads-util.sh
+
+Test setup
+----------
+
+  $ mkdir D5
+  $ cd D5
+  $ 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
+  $ hg up 0
+  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
+  $ mkcommit C0
+  created new head
+  $ cd ../client
+  $ hg pull
+  pulling from $TESTTMP/D5/server (glob)
+  searching for changes
+  adding changesets
+  adding manifests
+  adding file changes
+  added 2 changesets with 2 changes to 2 files (+1 heads)
+  (run 'hg heads' to see heads, 'hg merge' to merge)
+  $ hg up 'desc(C0)'
+  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  $ mkcommit A1
+  $ hg up 0
+  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
+  $ mkcommit B1
+  created new head
+  $ hg debugobsolete `getid "desc(A0)" ` `getid "desc(A1)"`
+  $ hg debugobsolete `getid "desc(B0)" ` `getid "desc(B1)"`
+  $ hg log -G --hidden
+  @  25c56d33e4c4 (draft): B1
+  |
+  | o  a0802eb7fc1b (draft): A1
+  | |
+  | o  0f88766e02d6 (draft): C0
+  |/
+  | x  d73caddc5533 (draft): B0
+  | |
+  | x  8aaa48160adc (draft): A0
+  |/
+  o  1e4be0697311 (public): root
+  
+
+Actual testing
+--------------
+
+  $ hg push --rev 'desc(B1)'
+  pushing to $TESTTMP/D5/server (glob)
+  searching for changes
+  abort: push creates new remote head 25c56d33e4c4!
+  (merge or see 'hg help push' for details about pushing new heads)
+  [255]
+  $ hg push --rev 'desc(A1)'
+  pushing to $TESTTMP/D5/server (glob)
+  searching for changes
+  adding changesets
+  adding manifests
+  adding file changes
+  added 1 changesets with 1 changes to 1 files
+  1 new obsolescence markers
+
+  $ cd ../..


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