From 4be5a2c096083234e62117ce6016c4c9aa573aff Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <e.dolstra@tudelft.nl>
Date: Wed, 21 Dec 2011 14:42:06 +0000
Subject: [PATCH] * Add a test for unsafeDiscardOutputDependency.  Not really
 related to   multiple outputs, but good to have anyway.

---
 tests/multiple-outputs.nix | 10 ++++++++++
 tests/multiple-outputs.sh  |  6 ++++++
 2 files changed, 16 insertions(+)

diff --git a/tests/multiple-outputs.nix b/tests/multiple-outputs.nix
index 9ce1f3dcf..405999ce7 100644
--- a/tests/multiple-outputs.nix
+++ b/tests/multiple-outputs.nix
@@ -42,6 +42,16 @@ rec {
       '';
   };
 
+  d = mkDerivation {
+    name = "multiple-outputs-d";
+    drv = builtins.unsafeDiscardOutputDependency b.drvPath;
+    builder = builtins.toFile "builder.sh"
+      ''
+        mkdir $out
+        echo $drv > $out/drv
+      '';
+  };
+
   cyclic = (mkDerivation {
     name = "cyclic-outputs";
     outputs = [ "a" "b" ];
diff --git a/tests/multiple-outputs.sh b/tests/multiple-outputs.sh
index aa328fdbc..e95c6b404 100644
--- a/tests/multiple-outputs.sh
+++ b/tests/multiple-outputs.sh
@@ -14,6 +14,12 @@ drvPath2=$(nix-instantiate multiple-outputs.nix -A c)
 grep -q 'multiple-outputs-a.drv",\["first","second"\]' $drvPath
 grep -q 'multiple-outputs-b.drv",\["out"\]' $drvPath
 
+# While we're at it, test the ‘unsafeDiscardOutputDependency’ primop.
+outPath=$(nix-build multiple-outputs.nix -A d)
+drvPath=$(cat $outPath/drv)
+outPath=$(nix-store -q $drvPath)
+! [ -e "$outPath" ]
+
 # Do a build of something that depends on a derivation with multiple
 # outputs.
 echo "building b..."