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

Testing head checking code: Case A-6

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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 6: multi-changeset branch, split on multiple other, (base on its own branch), same number of head

.. old-state:

..

.. * 2 branch (1-changeset, and 2-changesets)

..

.. new-state:

..

.. * 1 new branch superceeding the base of the old-2-changesets-branch,

.. * 1 new changesets on the old-1-changeset-branch superceeding the head of the other

..

.. expected-result:

..

.. * push allowed

..

.. graph-summary:

..

.. B'◔⇢ø B

..   | |

.. A | ø⇠◔ A'

..   | |/

.. C ● |

..    \|

..     ●

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

Test setup

----------

  $ mkdir A6

  $ cd A6

  $ 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/A6/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 0

  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

  $ mkcommit A1

  created new head

  $ hg up 'desc(C0)'

  1 files updated, 0 files merged, 1 files removed, 0 files unresolved

  $ mkcommit B1

  $ hg debugobsolete `getid "desc(A0)" ` `getid "desc(A1)"`

  obsoleted 1 changesets

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

  obsoleted 1 changesets

  $ hg log -G --hidden

  @  d70a1f75a020 (draft): B1

  |

  | o  f6082bc4ffef (draft): A1

  | |

  o |  0f88766e02d6 (draft): C0

  |/

  | x  d73caddc5533 (draft): B0

  | |

  | x  8aaa48160adc (draft): A0

  |/

  o  1e4be0697311 (public): root

Actual testing

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

  $ hg push

  pushing to $TESTTMP/A6/server (glob)

  searching for changes

  adding changesets

  adding manifests

  adding file changes

  added 2 changesets with 2 changes to 2 files (+1 heads)

  2 new obsolescence markers

  obsoleted 2 changesets

  $ cd ../..