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obsolescence: add test for the "branch replacement" logic during push, case D2
authorPierre-Yves David <pierre-yves.david@ens-lyon.org>
Thu, 13 Apr 2017 16:27:42 +0200
changeset 31987 8823daaf4665
parent 31986 f4d5d4f7aee1
child 31988 c5a45e238922
obsolescence: add test for the "branch replacement" logic during push, case D2 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-unpushed-D2.t file | annotate | diff | comparison | revisions 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-push-checkheads-unpushed-D2.t	Thu Apr 13 16:27:42 2017 +0200
@@ -0,0 +1,93 @@
+====================================
+Testing head checking code: Case D-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 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, other 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/push-checkheads-util.sh
+
+Test setup
+----------
+
+  $ mkdir D2
+  $ cd D2
+  $ 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/D2/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 debugobsolete --record-parents `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/D2/server (glob)
+  searching for changes
+  abort: push creates new remote head 0f88766e02d6!
+  (merge or see 'hg help push' for details about pushing new heads)
+  [255]
+
+  $ cd ../..
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