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authorLudovic Courtès <ludo@gnu.org>2019-09-14 17:54:06 +0200
committerLudovic Courtès <ludo@gnu.org>2019-09-23 10:38:43 +0200
commit873f6f1334ab06a69e768a8aea0054404237542f (patch)
tree81d0183061f1dec3c0a0fb276d9c912412c45105 /tests/git.scm
parenta78dcb3d599cc84b347578940bb0fd44b1ad50b4 (diff)
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.
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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")