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

Testing head checking code: Case D-3

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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 D: remote head is "obs-affected" locally, but result is not part of the push.

TestCase 3: multi-changeset branch, split on multiple new others, only one of them is pushed

.. old-state:

..

.. * 2 changesets branch

..

.. new-state:

..

.. * 2 new branches, each superseding one changeset in the old one.

..

.. expected-result:

..

.. * pushing only one of the resulting branch (either of them)

.. * push denied

..

.. graph-summary:

..

.. B'◔⇢ø 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 server

  $ mkcommit B0

  $ hg up 0

  0 files updated, 0 files merged, 2 files removed, 0 files unresolved

  $ cd ../client

  $ hg pull

  pulling from $TESTTMP/server

  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 up '0'

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

  $ mkcommit B1

  created new head

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

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

  $ hg log -G --hidden

  @  25c56d33e4c4 (draft): B1

  |

  | o  f6082bc4ffef (draft): A1

  |/

  | x  d73caddc5533 (draft): B0

  | |

  | x  8aaa48160adc (draft): A0

  |/

  o  1e4be0697311 (public): root

Actual testing

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

  $ hg push --rev 'desc(A1)'

  pushing to $TESTTMP/server

  searching for changes

  abort: push creates new remote head f6082bc4ffef!

  (merge or see 'hg help push' for details about pushing new heads)

  [255]

  $ hg push --rev 'desc(B1)'

  pushing to $TESTTMP/server

  searching for changes

  abort: push creates new remote head 25c56d33e4c4!

  (merge or see 'hg help push' for details about pushing new heads)

  [255]

Extra testing

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

In this case, even a bare push is creating more heads

  $ hg push

  pushing to $TESTTMP/server

  searching for changes

  abort: push creates new remote head 25c56d33e4c4!

  (merge or see 'hg help push' for details about pushing new heads)

  [255]