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Testing head checking code: Case D-5

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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 5: multi-changeset branch, split on multiple other, (head on its own new branch)

.. old-state:

..

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

..

.. new-state:

..

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

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

..

.. expected-result:

..

.. * push the new branch only -> push denied

.. * push the existing branch only -> push allowed

..   /!\ This push create unstability/orphaning on the other hand and we should

..  probably detect/warn agains that.

..

.. graph-summary:

..

..   B ø⇠◔ B'

..     | |

.. A'◔⇢ø |

..   | |/

.. C ● |

..    \|

..     ●

  $ . $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

  $ mkcommit C0

  created new head

  $ cd ../client

  $ hg pull

  pulling from $TESTTMP/server

  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 'desc(C0)'

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

  $ mkcommit A1

  $ hg up 0

  0 files updated, 0 files merged, 2 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  a0802eb7fc1b (draft): A1

  | |

  | o  0f88766e02d6 (draft): C0

  |/

  | x  d73caddc5533 (draft): B0

  | |

  | x  8aaa48160adc (draft): A0

  |/

  o  1e4be0697311 (public): root

Actual testing

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

  $ 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]

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

  pushing to $TESTTMP/server

  searching for changes

  adding changesets

  adding manifests

  adding file changes

  added 1 changesets with 1 changes to 1 files

  1 new obsolescence markers