upstream/mercurial-mirror Files · tests/test-push-checkheads-unpushed-D1.t

httppeer: implement command executor for version 2 peer...

httppeer: implement command executor for version 2 peer Now that we have a new API for issuing commands which is compatible with wire protocol version 2, we can start using it with wire protocol version 2. This commit replaces our hacky implementation of _call() with something a bit more robust based on the new command executor interface. We now have proper support for issuing multiple commands per HTTP request. Each HTTP request maintains its own client reactor. The implementation is similar to the one in the legacy wire protocol. We use a ThreadPoolExecutor for spinning up a thread to read the HTTP response in the background. This allows responses to resolve in any order. While not implemented on the server yet, a client could use concurrent.futures.as_completed() with a collection of futures and handle responses as they arrive from the server. The return value from issued commands is still a simple list of raw or decoded CBOR data. This is still super hacky. We will want a rich data type for representing command responses. But at least this commit gets us one step closer to a proper peer implementation. Differential Revision: https://phab.mercurial-scm.org/D3297

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

      Testing head checking code: Case D-1

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

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

      TestCase 1: remote head is rewritten, but successors is not part of the push

      .. old-state:

      ..

      .. * 1 changeset branch

      ..

      .. new-state:

      ..

      .. * 1 changeset branch succeeding the old branch

      .. * 1 new unrelated branch

      ..

      .. expected-result:

      ..

      .. * pushing only the unrelated branch: denied

      ..

      .. graph-summary:

      ..

      ..   A ø⇠○ A'

      ..     |/

      ..     | ◔ B

      ..     |/

      ..     ●

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

      Test setup

      ----------

        $ mkdir D1

        $ cd D1

        $ 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 up 0

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

        $ mkcommit A1

        created new head

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

        obsoleted 1 changesets

        $ hg up 0

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

        $ mkcommit B0

        created new head

        $ hg log -G --hidden

        @  74ff5441d343 (draft): B0

        |

        | o  f6082bc4ffef (draft): A1

        |/

        | x  8aaa48160adc (draft): A0

        |/

        o  1e4be0697311 (public): root

      Actual testing

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

        $ hg push -r 'desc(B0)'

        pushing to $TESTTMP/D1/server

        searching for changes

        abort: push creates new remote head 74ff5441d343!

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

        [255]

        $ cd ../..

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				====================================
				Testing head checking code: Case D-1
				====================================

				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 D: remote head is "obs-affected" locally, but result is not part of the push
				TestCase 1: remote head is rewritten, but successors is not part of the push

				.. old-state:
				..
				.. * 1 changeset branch
				..
				.. new-state:
				..
				.. * 1 changeset branch succeeding the old branch
				.. * 1 new unrelated branch
				..
				.. expected-result:
				..
				.. * pushing only the unrelated branch: denied
				..
				.. graph-summary:
				..
				.. A ø⇠○ A'
				.. \|/
				.. \| ◔ B
				.. \|/
				.. ●

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

				Test setup
				----------

				$ mkdir D1
				$ cd D1
				$ 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 up 0
				0 files updated, 0 files merged, 1 files removed, 0 files unresolved
				$ mkcommit A1
				created new head
				$ hg debugobsolete `getid "desc(A0)" ` `getid "desc(A1)"`
				obsoleted 1 changesets
				$ hg up 0
				0 files updated, 0 files merged, 1 files removed, 0 files unresolved
				$ mkcommit B0
				created new head
				$ hg log -G --hidden
				@ 74ff5441d343 (draft): B0
				\|
				\| o f6082bc4ffef (draft): A1
				\|/
				\| x 8aaa48160adc (draft): A0
				\|/
				o 1e4be0697311 (public): root


				Actual testing
				--------------

				$ hg push -r 'desc(B0)'
				pushing to $TESTTMP/D1/server
				searching for changes
				abort: push creates new remote head 74ff5441d343!
				(merge or see 'hg help push' for details about pushing new heads)
				[255]

				$ cd ../..