1 files changed, 29 insertions, 1 deletions
diff --git a/lib/path/tests/unit.nix b/lib/path/tests/unit.nix
index bad6560f13a9..9b0a0b2714aa 100644
--- a/lib/path/tests/unit.nix
+++ b/lib/path/tests/unit.nix
@@ -3,7 +3,10 @@
 { libpath }:
 let
   lib = import libpath;
-  inherit (lib.path) hasPrefix removePrefix append splitRoot subpath;
+  inherit (lib.path) hasPrefix removePrefix append splitRoot hasStorePathPrefix subpath;
+
+  # This is not allowed generally, but we're in the tests here, so we'll allow ourselves.
+  storeDirPath = /. + builtins.storeDir;
 
   cases = lib.runTests {
     # Test examples from the lib.path.append documentation
@@ -91,6 +94,31 @@ let
       expected = false;
     };
 
+    testHasStorePathPrefixExample1 = {
+      expr = hasStorePathPrefix (storeDirPath + "/nvl9ic0pj1fpyln3zaqrf4cclbqdfn1j-foo/bar/baz");
+      expected = true;
+    };
+    testHasStorePathPrefixExample2 = {
+      expr = hasStorePathPrefix storeDirPath;
+      expected = false;
+    };
+    testHasStorePathPrefixExample3 = {
+      expr = hasStorePathPrefix (storeDirPath + "/nvl9ic0pj1fpyln3zaqrf4cclbqdfn1j-foo");
+      expected = true;
+    };
+    testHasStorePathPrefixExample4 = {
+      expr = hasStorePathPrefix /home/user;
+      expected = false;
+    };
+    testHasStorePathPrefixExample5 = {
+      expr = hasStorePathPrefix (storeDirPath + "/.links/10gg8k3rmbw8p7gszarbk7qyd9jwxhcfq9i6s5i0qikx8alkk4hq");
+      expected = false;
+    };
+    testHasStorePathPrefixExample6 = {
+      expr = hasStorePathPrefix (storeDirPath + "/nvl9ic0pj1fpyln3zaqrf4cclbqdfn1j-foo.drv");
+      expected = true;
+    };
+
     # Test examples from the lib.path.subpath.isValid documentation
     testSubpathIsValidExample1 = {
       expr = subpath.isValid null;