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authorMark H Weaver <mhw@netris.org>2019-08-22 15:53:27 -0400
committerMark H Weaver <mhw@netris.org>2019-08-22 15:53:27 -0400
commit893c2df00daa4e6dd6a7ff3813d7df5329877f9e (patch)
treeacd0db459464acae47083b66d5ce12cc656e2f10 /tests/derivations.scm
parent04b9b7bb05aff4c41f46cd79aa7bc953ace16e86 (diff)
parent0ccc9a0f5bb89b239d56157ea66f8420fcec5ba6 (diff)
Merge branch 'master' into core-updates
Diffstat (limited to 'tests/derivations.scm')
-rw-r--r--tests/derivations.scm32
1 files changed, 32 insertions, 0 deletions
diff --git a/tests/derivations.scm b/tests/derivations.scm
index 36558fe1dd..56b2775248 100644
--- a/tests/derivations.scm
+++ b/tests/derivations.scm
@@ -409,6 +409,38 @@
(equal? (derivation->output-path final1)
(derivation->output-path final2)))))
+(test-assert "derivation with duplicate fixed-output inputs"
+ ;; Here we create a derivation that has two inputs, both of which are
+ ;; fixed-output leading to the same result. This test ensures the hash of
+ ;; that derivation is correctly computed, namely that duplicate inputs are
+ ;; coalesced. See <https://bugs.gnu.org/36777>.
+ (let* ((builder1 (add-text-to-store %store "fixed-builder1.sh"
+ "echo -n hello > $out" '()))
+ (builder2 (add-text-to-store %store "fixed-builder2.sh"
+ "echo hey; echo -n hello > $out" '()))
+ (hash (sha256 (string->utf8 "hello")))
+ (fixed1 (derivation %store "fixed"
+ %bash `(,builder1)
+ #:hash hash #:hash-algo 'sha256))
+ (fixed2 (derivation %store "fixed"
+ %bash `(,builder2)
+ #:hash hash #:hash-algo 'sha256))
+ (builder3 (add-text-to-store %store "builder.sh"
+ "echo fake builder"))
+ (final (derivation %store "final"
+ %bash `(,builder3)
+ #:sources (list %bash builder3)
+ #:inputs (list (derivation-input fixed1)
+ (derivation-input fixed2)))))
+ (and (derivation? final)
+ (match (derivation-inputs final)
+ (((= derivation-input-derivation one)
+ (= derivation-input-derivation two))
+ (and (not (string=? (derivation-file-name one)
+ (derivation-file-name two)))
+ (string=? (derivation->output-path one)
+ (derivation->output-path two))))))))
+
(test-assert "multiple-output derivation"
(let* ((builder (add-text-to-store %store "my-fixed-builder.sh"
"echo one > $out ; echo two > $second"