1 files changed, 19 insertions, 1 deletions
diff --git a/lib/tests/misc.nix b/lib/tests/misc.nix
index 3059878ba069..193e68a96933 100644
--- a/lib/tests/misc.nix
+++ b/lib/tests/misc.nix
@@ -1902,7 +1902,7 @@ runTests {
     expected = true;
   };
 
-  # lazyDerivation
+  # DERIVATIONS
 
   testLazyDerivationIsLazyInDerivationForAttrNames = {
     expr = attrNames (lazyDerivation {
@@ -1955,6 +1955,24 @@ runTests {
     expected = derivation;
   };
 
+  testOptionalDrvAttr = let
+    mkDerivation = args: derivation (args // {
+      builder = "builder";
+      system = "system";
+      __ignoreNulls = true;
+    });
+  in {
+    expr = (mkDerivation {
+      name = "foo";
+      x = optionalDrvAttr true 1;
+      y = optionalDrvAttr false 1;
+    }).drvPath;
+    expected = (mkDerivation {
+      name = "foo";
+      x = 1;
+    }).drvPath;
+  };
+
   testTypeDescriptionInt = {
     expr = (with types; int).description;
     expected = "signed integer";