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Testing single head enforcement: Case A-1

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A repository is set to only accept a single head per name (typically named

branch). However, obsolete changesets can make this enforcement more

complicated, because they can be kept visible by other changeset on other

branch.

This case is part of a series of tests checking this behavior.

Category A: Involving obsolescence

TestCase 1: A fully obsolete branch kept visible by another one

.. old-state:

..

.. * 2 changesets on branch default

.. * 2 changesets on branch Z on top of them

..

.. new-state:

..

.. * 2 changesets on branch Z at the same location

.. * 2 changesets on branch default superseding the other ones

..

.. expected-result:

..

.. * only one head detected

..

.. graph-summary:

..

..   D ●      (branch Z)

..     |

..   C ●      (branch Z)

..     |

..   B ø⇠◔ B'

..     | |

..   A ø⇠◔ A'

..     |/

..     ●

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

  $ cat >> $HGRCPATH << EOF

  > [command-templates]

  > log = "{node|short} [{branch}] ({phase}): {desc}\n"

  > EOF

Test setup

----------

  $ mkdir A1

  $ cd A1

  $ setuprepos single-head

  creating basic server and client repo

  updating to branch default

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

  $ cd client

  $ mkcommit B0

  $ hg branch Z

  marked working directory as branch Z

  (branches are permanent and global, did you want a bookmark?)

  $ mkcommit C0

  $ mkcommit D0

  $ hg push --new-branch

  pushing to $TESTTMP/A1/server

  searching for changes

  adding changesets

  adding manifests

  adding file changes

  added 3 changesets with 3 changes to 3 files

  $ hg up 0

  0 files updated, 0 files merged, 4 files removed, 0 files unresolved

  $ mkcommit A1

  created new head

  $ mkcommit B1

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

  1 new obsolescence markers

  obsoleted 1 changesets

  3 new orphan changesets

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

  1 new obsolescence markers

  obsoleted 1 changesets

  $ hg heads

  262c8c798096 [default] (draft): B1

  cdf1dbb37a67 [Z] (draft): D0

  $ hg log -G --hidden

  @  262c8c798096 [default] (draft): B1

  |

  o  f6082bc4ffef [default] (draft): A1

  |

  | *  cdf1dbb37a67 [Z] (draft): D0

  | |

  | *  3213e3e16c67 [Z] (draft): C0

  | |

  | x  d73caddc5533 [default] (draft): B0

  | |

  | x  8aaa48160adc [default] (draft): A0

  |/

  o  1e4be0697311 [default] (public): root

Actual testing

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

  $ hg push -r 'desc("B1")'

  pushing to $TESTTMP/A1/server

  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

  2 new orphan changesets