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-rw-r--r--tests/graph.scm21
1 files changed, 20 insertions, 1 deletions
diff --git a/tests/graph.scm b/tests/graph.scm
index e374dad1a5..fadac265f9 100644
--- a/tests/graph.scm
+++ b/tests/graph.scm
@@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -94,6 +94,25 @@ edges."
(list p3 p3 p2)
(list p2 p1 p1))))))))
+(test-assert "package DAG, limited depth"
+ (let-values (((backend nodes+edges) (make-recording-backend)))
+ (let* ((p1 (dummy-package "p1"))
+ (p2 (dummy-package "p2" (inputs `(("p1" ,p1)))))
+ (p3 (dummy-package "p3" (inputs `(("p1" ,p1)))))
+ (p4 (dummy-package "p4" (inputs `(("p2" ,p2) ("p3" ,p3))))))
+ (run-with-store %store
+ (export-graph (list p4) 'port
+ #:max-depth 1
+ #:node-type %package-node-type
+ #:backend backend))
+ ;; We should see nothing more than these 3 packages.
+ (let-values (((nodes edges) (nodes+edges)))
+ (and (equal? nodes (map package->tuple (list p4 p2 p3)))
+ (equal? edges
+ (map edge->tuple
+ (list p4 p4)
+ (list p2 p3))))))))
+
(test-assert "reverse package DAG"
(let-values (((backend nodes+edges) (make-recording-backend)))
(run-with-store %store