diff --git a/pkgs/test/default.nix b/pkgs/test/default.nix
index b73617daa89..2ca3fc6c950 100644
--- a/pkgs/test/default.nix
+++ b/pkgs/test/default.nix
@@ -27,6 +27,10 @@ with pkgs;
   cc-multilib-gcc = callPackage ./cc-wrapper/multilib.nix { stdenv = gccMultiStdenv; };
   cc-multilib-clang = callPackage ./cc-wrapper/multilib.nix { stdenv = clangMultiStdenv; };
 
+  fetchpatch = callPackages ../build-support/fetchpatch/tests.nix { };
+  fetchgit = callPackages ../build-support/fetchgit/tests.nix { };
+  fetchFirefoxAddon = callPackages ../build-support/fetchfirefoxaddon/tests.nix { };
+
   install-shell-files = callPackage ./install-shell-files {};
 
   kernel-config = callPackage ./kernel.nix {};
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index a2c3d02871e..f81c27fec97 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -488,7 +488,7 @@ with pkgs;
     cacert = buildPackages.cacert;
     git-lfs = buildPackages.git-lfs;
   }) // { # fetchgit is a function, so we use // instead of passthru.
-    tests = callPackages ../build-support/fetchgit/tests.nix {};
+    tests = pkgs.tests.fetchgit;
   };
 
   fetchgitLocal = callPackage ../build-support/fetchgitlocal { };
@@ -531,7 +531,7 @@ with pkgs;
 
   fetchpatch = callPackage ../build-support/fetchpatch { }
     // {
-      tests = callPackages ../build-support/fetchpatch/tests.nix { };
+      tests = pkgs.tests.fetchpatch;
     };
 
   fetchs3 = callPackage ../build-support/fetchs3 { };
@@ -549,7 +549,7 @@ with pkgs;
 
   fetchFirefoxAddon = callPackage ../build-support/fetchfirefoxaddon { }
     // {
-      tests = callPackages ../build-support/fetchfirefoxaddon/tests.nix { };
+      tests = pkgs.tests.fetchFirefoxAddon;
     };
 
   fetchNextcloudApp = callPackage ../build-support/fetchnextcloudapp {};