From a5915b6c993052920d39b1d9719640569b866ead Mon Sep 17 00:00:00 2001
From: Erin van der Veen <erin.vanderveen@tweag.io>
Date: Tue, 5 Mar 2024 20:56:11 +0100
Subject: [PATCH] feat: test substituters by actually attempting to fetch from
 them

---
 src/nix/substituters.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/nix/substituters.rs b/src/nix/substituters.rs
index 6255b2d..949e4ab 100644
--- a/src/nix/substituters.rs
+++ b/src/nix/substituters.rs
@@ -87,4 +87,15 @@ mod tests {
 
         assert!(substituters.is_ok());
     }
+
+    /// This test gets the substituters and passes them along to the
+    /// NarInfo::fetch function to ensure they are correct.
+    #[test]
+    fn test_get_substituters() {
+        let store_path = "/nix/store/1gxz5nfzfnhyxjdyzi04r86sh61y4i00-hello-2.12.1";
+        let substituters = get_substituters("nixpkgs".to_owned()).unwrap();
+        let nar_info = crate::narinfo::NarInfo::fetch(store_path, &substituters);
+
+        assert!(nar_info.is_ok_and(|n| n.is_some_and(|n| n.store_path == store_path)))
+    }
 }