Add failing test (#59)

git-odb/tests/compound/mod.rs

@@ -0,0 +1,22 @@
+use crate::{fixture_path, hex_to_id};
+use git_odb::compound::Db;
+
+fn db() -> Db {
+    Db::at(fixture_path("objects")).expect("valid object path")
+}
+
+fn can_locate(db: &Db, hex_id: &str) {
+    let mut buf = vec![];
+    assert!(db.locate(hex_to_id(hex_id).to_borrowed(), &mut buf).is_some());
+}
+
+#[test]
+fn loose_object_lookup() {
+    can_locate(&db(), "37d4e6c5c48ba0d245164c4e10d5f41140cab980");
+}
+
+#[test]
+#[should_panic]
+fn pack_object_lookup() {
+    can_locate(&db(), "501b297447a8255d3533c6858bb692575cdefaa0");
+}

git-odb/tests/odb.rs

@@ -25,6 +25,7 @@ pub fn fixture_path(path: &str) -> PathBuf {
 }
 
 mod alternate;
+mod compound;
 mod loose;
 mod pack;
 mod sink;