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-rw-r--r--tests/graph.scm22
1 files changed, 22 insertions, 0 deletions
diff --git a/tests/graph.scm b/tests/graph.scm
index 1ce06cc817..f2e441cee6 100644
--- a/tests/graph.scm
+++ b/tests/graph.scm
@@ -232,6 +232,28 @@ edges."
(list out txt))
(equal? edges `((,out ,txt)))))))))))
+(test-assert "referrer DAG"
+ (let-values (((backend nodes+edges) (make-recording-backend)))
+ (run-with-store %store
+ (mlet* %store-monad ((txt (text-file "referrer-node" (random-text)))
+ (drv (gexp->derivation "referrer"
+ #~(symlink #$txt #$output)))
+ (out -> (derivation->output-path drv)))
+ ;; We should see only TXT and OUT, with an edge from the former to the
+ ;; latter.
+ (mbegin %store-monad
+ (built-derivations (list drv))
+ (export-graph (list txt) 'port
+ #:node-type %referrer-node-type
+ #:backend backend)
+ (let-values (((nodes edges) (nodes+edges)))
+ (return
+ (and (equal? (match nodes
+ (((ids labels) ...)
+ ids))
+ (list txt out))
+ (equal? edges `((,txt ,out)))))))))))
+
(test-assert "node-edges"
(run-with-store %store
(let ((packages (fold-packages cons '())))