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obsolescence: add test for the "branch replacement" logic during push, case A4
authorPierre-Yves David <pierre-yves.david@ens-lyon.org>
Thu, 13 Apr 2017 16:23:39 +0200
changeset 31977 e4bd71627903
parent 31976 e0b6421b2fc5
child 31978 c9b4bcad327e
obsolescence: add test for the "branch replacement" logic during push, case A4 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.
tests/test-push-checkheads-superceed-A4.t file | annotate | diff | comparison | revisions 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-push-checkheads-superceed-A4.t	Thu Apr 13 16:23:39 2017 +0200
@@ -0,0 +1,74 @@
+====================================
+Testing head checking code: Case A-4
+====================================
+
+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 A: simple case involving a branch being superceeded by another.
+TestCase 4: New changeset as children of the successor
+
+.. old-state:
+..
+.. * 1-changeset branch
+..
+.. new-state:
+..
+.. * 2-changeset branch, first is a successor, but head is new
+..
+.. expected-result:
+..
+.. * push allowed
+..
+.. graph-summary:
+..
+..       ◔ B
+..       |
+..   A ø⇠◔ A'
+..     |/
+..     ●
+
+  $ . $TESTDIR/testlib/push-checkheads-util.sh
+
+Test setup
+----------
+
+  $ mkdir A4
+  $ cd A4
+  $ 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)"`
+  $ mkcommit B0
+  $ hg log -G --hidden
+  @  f40ded968333 (draft): B0
+  |
+  o  f6082bc4ffef (draft): A1
+  |
+  | x  8aaa48160adc (draft): A0
+  |/
+  o  1e4be0697311 (public): root
+  
+
+Actual testing
+--------------
+
+  $ hg push
+  pushing to $TESTTMP/A4/server (glob)
+  searching for changes
+  adding changesets
+  adding manifests
+  adding file changes
+  added 2 changesets with 2 changes to 2 files (+1 heads)
+  1 new obsolescence markers
+
+  $ cd ../../
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