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Testing head checking code: Case A-4

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Mercurial checks for the introduction of multiple heads on push. Evolution

comes into play to detect if existing heads on the server are being replaced by

some of the new heads we push.

This test file is part of a series of tests checking this behavior.

Category A: checking simple case invoving 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/checkheads-util.sh

Test setup

----------

  $ 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/server

  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