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-rw-r--r--tests/graph.scm17
1 files changed, 15 insertions, 2 deletions
diff --git a/tests/graph.scm b/tests/graph.scm
index f2e441cee6..6431c482f7 100644
--- a/tests/graph.scm
+++ b/tests/graph.scm
@@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2015, 2016 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -32,6 +32,7 @@
#:use-module (gnu packages)
#:use-module (gnu packages base)
#:use-module (gnu packages guile)
+ #:use-module (gnu packages libunistring)
#:use-module (gnu packages bootstrap)
#:use-module (ice-9 match)
#:use-module (srfi srfi-1)
@@ -57,7 +58,8 @@ edges."
(define (return)
(values (reverse nodes) (reverse edges)))
- (values (graph-backend (const #t) (const #t)
+ (values (graph-backend "test" "This is the test backend."
+ (const #t) (const #t)
record-node record-edge)
return)))
@@ -91,6 +93,17 @@ edges."
(list p3 p3 p2)
(list p2 p1 p1))))))))
+(test-assert "reverse package DAG"
+ (let-values (((backend nodes+edges) (make-recording-backend)))
+ (run-with-store %store
+ (export-graph (list libunistring) 'port
+ #:node-type %reverse-package-node-type
+ #:backend backend))
+ ;; We should see nothing more than these 3 packages.
+ (let-values (((nodes edges) (nodes+edges)))
+ (and (member (package->tuple guile-2.0) nodes)
+ (->bool (member (edge->tuple libunistring guile-2.0) edges))))))
+
(test-assert "bag-emerged DAG"
(let-values (((backend nodes+edges) (make-recording-backend)))
(let* ((o (dummy-origin (method (lambda _