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

Testing head checking code: Case E-3

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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 E: case involving changeset on multiple branch

TestCase 8: moving only part of the interleaved branch away, creating 2 heads

.. old-state:

..

.. * 2-changeset on topic Y

.. * 1-changeset on topic Z (between the two other)

..

.. new-state:

..

.. * 2-changeset on topic Y, on untouched, the other moved

.. * 1-changeset on topic Z (at the same location)

..

.. expected-result:

..

.. * push rejected

..

.. graph-summary:

..

..   C ø⇠◔ C' topic Y

..     | |

..   B ◔ |    topic Z

..     | |

..   A ◔ |    topic Y

..     |/

..     ●

  $ . $TESTDIR/testlib/topic_setup.sh

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

Test setup

----------

  $ mkdir E1

  $ cd E1

  $ 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 topic -r . Y

  switching to topic Y

  changed topic on 1 changesets to "Y"

  $ hg strip --config extensions.strip= --hidden 'hidden()' # clean old A0

  saved backup bundle to $TESTTMP/E1/client/.hg/strip-backup/8aaa48160adc-19166392-backup.hg

  $ hg topic Z

  $ mkcommit B0

  active topic 'Z' grew its first changeset

  (see 'hg help topics' for more information)

  $ hg topic Y

  $ mkcommit C0

  $ hg push

  pushing to $TESTTMP/E1/server

  searching for changes

  adding changesets

  adding manifests

  adding file changes

  added 3 changesets with 2 changes to 3 files (+1 heads)

  1 new obsolescence markers

  obsoleted 1 changesets

  $ hg up 0

  0 files updated, 0 files merged, 3 files removed, 0 files unresolved

  $ hg topic Y

  marked working directory as topic: Y

  $ mkcommit C1

  $ hg debugobsolete `getid "desc(C0)" ` `getid "desc(C1)"`

  1 new obsolescence markers

  obsoleted 1 changesets

  $ hg log -G --hidden

  @  57530ca5eb24 (draft)[Y]: C1

  |

  | x  345721b128e8 (draft)[Y]: C0

  | |

  | o  e1494106e1ca (draft)[Z]: B0

  | |

  | o  f5cd873e2965 (draft)[Y]: A0

  |/

  o  1e4be0697311 (public): root

Actual testing

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

  $ hg push -r 'desc("C1")'

  pushing to $TESTTMP/E1/server

  searching for changes

  abort: push creates new remote head 57530ca5eb24 on branch 'default:Y'!

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

  [255]

  $ cd ../..