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-rw-r--r--tests/store.scm12
1 files changed, 12 insertions, 0 deletions
diff --git a/tests/store.scm b/tests/store.scm
index 3932a8eb45..90137b9754 100644
--- a/tests/store.scm
+++ b/tests/store.scm
@@ -147,6 +147,18 @@
 ;;          (valid-path? %store p1)
 ;;          (member (pk p2) (live-paths %store)))))
 
+(test-assert "permanent root"
+  (let* ((p  (with-store store
+               (let ((p (add-text-to-store store "random-text"
+                                           (random-text))))
+                 (add-permanent-root p)
+                 (add-permanent-root p)           ; should not throw
+                 p))))
+    (and (member p (live-paths %store))
+         (begin
+           (remove-permanent-root p)
+           (->bool (member p (dead-paths %store)))))))
+
 (test-assert "dead path can be explicitly collected"
   (let ((p (add-text-to-store %store "random-text"
                               (random-text) '())))