refactor(tvix/glue/fetchers): move store_path() tests here r/8251

Move the part asking a fetch for its store_path() to the place where
this function is defined, and add some more test cases.

Change-Id: I96f326d0d56aa5835f23274b8cd1b1afe3724153
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11789
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI

2 files changed, 40 insertions, 42 deletions

diff --git a/tvix/glue/src/fetchers/mod.rs b/tvix/glue/src/fetchers/mod.rs
index 9ebed01c4f28..69f93bdd9a1a 100644
--- a/tvix/glue/src/fetchers/mod.rs
+++ b/tvix/glue/src/fetchers/mod.rs
@@ -412,32 +412,46 @@ pub(crate) fn url_basename(s: &str) -> &str {
 #[cfg(test)]
 mod tests {
     mod fetch {
-        use nix_compat::nixbase32;
-
-        use crate::fetchers::Fetch;
-
         use super::super::*;
-
-        #[test]
-        fn fetchurl_store_path() {
-            let url = Url::parse("https://raw.githubusercontent.com/aaptel/notmuch-extract-patch/f732a53e12a7c91a06755ebfab2007adc9b3063b/notmuch-extract-patch").unwrap();
-            let exp_hash = NixHash::Sha256(
-                nixbase32::decode_fixed("0nawkl04sj7psw6ikzay7kydj3dhd0fkwghcsf5rzaw4bmp4kbax")
-                    .unwrap(),
-            );
-
-            let fetch = Fetch::URL {
-                url,
-                exp_hash: Some(exp_hash),
-            };
+        use crate::fetchers::Fetch;
+        use nix_compat::{nixbase32, nixhash};
+        use rstest::rstest;
+
+        #[rstest]
+        #[case::url_no_hash(
+            Fetch::URL{
+                url: Url::parse("https://raw.githubusercontent.com/aaptel/notmuch-extract-patch/f732a53e12a7c91a06755ebfab2007adc9b3063b/notmuch-extract-patch").unwrap(),
+                exp_hash: None,
+            },
+            None,
+            "notmuch-extract-patch"
+        )]
+        #[case::url_sha256(
+            Fetch::URL{
+                url: Url::parse("https://raw.githubusercontent.com/aaptel/notmuch-extract-patch/f732a53e12a7c91a06755ebfab2007adc9b3063b/notmuch-extract-patch").unwrap(),
+                exp_hash: Some(nixhash::from_sri_str("sha256-Xa1Jbl2Eq5+L0ww+Ph1osA3Z/Dxe/RkN1/dITQCdXFk=").unwrap()),
+            },
+            Some(StorePathRef::from_bytes(b"06qi00hylriyfm0nl827crgjvbax84mz-notmuch-extract-patch").unwrap()),
+            "notmuch-extract-patch"
+        )]
+        #[case::url_custom_name(
+            Fetch::URL{
+                url: Url::parse("https://test.example/owo").unwrap(),
+                exp_hash: Some(nixhash::from_sri_str("sha256-Xa1Jbl2Eq5+L0ww+Ph1osA3Z/Dxe/RkN1/dITQCdXFk=").unwrap()),
+            },
+            Some(StorePathRef::from_bytes(b"06qi00hylriyfm0nl827crgjvbax84mz-notmuch-extract-patch").unwrap()),
+            "notmuch-extract-patch"
+        )]
+        fn fetchurl_store_path(
+            #[case] fetch: Fetch,
+            #[case] exp_path: Option<StorePathRef>,
+            #[case] name: &str,
+        ) {
             assert_eq!(
-                "06qi00hylriyfm0nl827crgjvbax84mz-notmuch-extract-patch",
-                &fetch
-                    .store_path("notmuch-extract-patch")
-                    .unwrap()
-                    .unwrap()
-                    .to_string(),
-            )
+                exp_path,
+                fetch.store_path(name).expect("invalid name"),
+                "unexpected calculated store path"
+            );
         }
 
         #[test]
diff --git a/tvix/glue/src/known_paths.rs b/tvix/glue/src/known_paths.rs
index 049dd96ca422..edc57c38f247 100644
--- a/tvix/glue/src/known_paths.rs
+++ b/tvix/glue/src/known_paths.rs
@@ -133,7 +133,7 @@ impl KnownPaths {
 
 #[cfg(test)]
 mod tests {
-    use nix_compat::{derivation::Derivation, nixbase32, nixhash::NixHash, store_path::StorePath};
+    use nix_compat::{derivation::Derivation, nixbase32, nixhash, store_path::StorePath};
     use url::Url;
 
     use crate::fetchers::Fetch;
@@ -162,7 +162,7 @@ mod tests {
 
         static ref FETCH_URL : Fetch = Fetch::URL{
             url: Url::parse("https://raw.githubusercontent.com/aaptel/notmuch-extract-patch/f732a53e12a7c91a06755ebfab2007adc9b3063b/notmuch-extract-patch").unwrap(),
-            exp_hash: Some(NixHash::Sha256(nixbase32::decode_fixed("0nawkl04sj7psw6ikzay7kydj3dhd0fkwghcsf5rzaw4bmp4kbax").unwrap()))
+            exp_hash: Some(nixhash::from_sri_str("sha256-Xa1Jbl2Eq5+L0ww+Ph1osA3Z/Dxe/RkN1/dITQCdXFk=").unwrap())
         };
         static ref FETCH_URL_OUT_PATH: StorePath = StorePath::from_bytes(b"06qi00hylriyfm0nl827crgjvbax84mz-notmuch-extract-patch").unwrap();
 
@@ -267,22 +267,6 @@ mod tests {
                 .unwrap()
                 .to_owned()
         );
-
-        // We should be able to get these fetches out, when asking for their out path.
-        let (got_name, got_fetch) = known_paths
-            .get_fetch_for_output_path(&FETCH_URL_OUT_PATH)
-            .expect("must be some");
-
-        assert_eq!("notmuch-extract-patch", got_name);
-        assert_eq!(FETCH_URL.clone(), got_fetch);
-
-        // … multiple times.
-        let (got_name, got_fetch) = known_paths
-            .get_fetch_for_output_path(&FETCH_URL_OUT_PATH)
-            .expect("must be some");
-
-        assert_eq!("notmuch-extract-patch", got_name);
-        assert_eq!(FETCH_URL.clone(), got_fetch);
     }
 
     // TODO: add test panicking about missing digest