guix/tests/git.scm
Ludovic Courtès 873f6f1334
git: Add 'commit-difference'.
* guix/git.scm (commit-closure, commit-difference): New procedures.
* guix/tests/git.scm, tests/git.scm: New files.
* Makefile.am (dist_noinst_DATA): Add guix/tests/git.scm.
(SCM_TESTS): Add tests/git.scm.
2019-09-23 10:38:43 +02:00

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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2019 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (test-git)
#:use-module (git)
#:use-module (guix git)
#:use-module (guix tests git)
#:use-module (guix build utils)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-64))
;; Test the (guix git) tools.
(test-begin "git")
;; 'with-temporary-git-repository' relies on the 'git' command.
(unless (which (git-command)) (test-skip 1))
(test-assert "commit-difference, linear history"
(with-temporary-git-repository directory
'((add "a.txt" "A")
(commit "first commit")
(add "b.txt" "B")
(commit "second commit")
(add "c.txt" "C")
(commit "third commit")
(add "d.txt" "D")
(commit "fourth commit"))
(with-repository directory repository
(let ((commit1 (find-commit repository "first"))
(commit2 (find-commit repository "second"))
(commit3 (find-commit repository "third"))
(commit4 (find-commit repository "fourth")))
(and (lset= eq? (commit-difference commit4 commit1)
(list commit2 commit3 commit4))
(lset= eq? (commit-difference commit4 commit2)
(list commit3 commit4))
(equal? (commit-difference commit3 commit2)
(list commit3))
;; COMMIT4 is not an ancestor of COMMIT1 so we should get the
;; empty list.
(null? (commit-difference commit1 commit4)))))))
(unless (which (git-command)) (test-skip 1))
(test-assert "commit-difference, fork"
(with-temporary-git-repository directory
'((add "a.txt" "A")
(commit "first commit")
(branch "devel")
(checkout "devel")
(add "devel/1.txt" "1")
(commit "first devel commit")
(add "devel/2.txt" "2")
(commit "second devel commit")
(checkout "master")
(add "b.txt" "B")
(commit "second commit")
(add "c.txt" "C")
(commit "third commit")
(merge "devel" "merge")
(add "d.txt" "D")
(commit "fourth commit"))
(with-repository directory repository
(let ((master1 (find-commit repository "first commit"))
(master2 (find-commit repository "second commit"))
(master3 (find-commit repository "third commit"))
(master4 (find-commit repository "fourth commit"))
(devel1 (find-commit repository "first devel"))
(devel2 (find-commit repository "second devel"))
(merge (find-commit repository "merge")))
(and (equal? (commit-difference master4 merge)
(list master4))
(lset= eq? (commit-difference master3 master1)
(list master3 master2))
(lset= eq? (commit-difference devel2 master1)
(list devel2 devel1))
;; The merge occurred between MASTER2 and MASTER4 so here we
;; expect to see all the commits from the "devel" branch in
;; addition to those on "master".
(lset= eq? (commit-difference master4 master2)
(list master4 merge master3 devel1 devel2)))))))
(test-end "git")