====================================

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: checking case were the branch is only partially obsoleted.

TestCase 1: 2 changeset branch, only the head is rewritten

.. old-state:

..

.. * 2 changeset branch

..

.. new-state:

..

.. * 1 new changesets branches superceeding only the head of the old one

.. * base of the old branch is still alive

..

.. expected-result:

..

.. * push denied

..

.. graph-summary:

..

..   B ø⇠◔ B'

..     | |

..   A ○ |

..     |/

..     ○

  $ . $TESTDIR/testlib/push-checkheads-util.sh

Test setup

----------

  $ mkdir C1

  $ cd C1

  $ 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/C1/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 B1

  created new head

  $ hg debugobsolete `getid "desc(B0)" ` `getid "desc(B1)"`

  $ hg log -G --hidden

  @  25c56d33e4c4 (draft): B1

  |

  | x  d73caddc5533 (draft): B0

  | |

  | o  8aaa48160adc (draft): A0

  |/

  o  1e4be0697311 (public): root

Actual testing

--------------

  $ hg push

  pushing to $TESTTMP/C1/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]

  $ cd ../..