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-rw-r--r--tests/packages.scm13
1 files changed, 13 insertions, 0 deletions
diff --git a/tests/packages.scm b/tests/packages.scm
index cbd0503733..2649c2497f 100644
--- a/tests/packages.scm
+++ b/tests/packages.scm
@@ -611,6 +611,19 @@
(and (derivation? drv)
(file-exists? (derivation-file-name drv)))))
+(test-assert "package-derivation, inputs deduplicated"
+ (let* ((dep (dummy-package "dep"))
+ (p0 (dummy-package "p" (inputs `(("dep" ,dep)))))
+ (p1 (package (inherit p0)
+ (inputs `(("dep" ,(package (inherit dep)))
+ ,@(package-inputs p0))))))
+ ;; Here P1 ends up with two non-eq? copies of DEP, under the same label.
+ ;; They should be deduplicated so that P0 and P1 lead to the same
+ ;; derivation rather than P1 ending up with duplicate entries in its
+ ;; '%build-inputs' variable.
+ (string=? (derivation-file-name (package-derivation %store p0))
+ (derivation-file-name (package-derivation %store p1)))))
+
(test-assert "package-output"
(let* ((package (dummy-package "p"))
(drv (package-derivation %store package)))