From 78554862c84156274d3897a602b097e85c9a583b Mon Sep 17 00:00:00 2001
From: Gwilym Kuiper <email@gwilym.dev>
Date: Sun, 2 Oct 2022 19:05:29 +0100
Subject: [PATCH] Move the tests to a better location

---
 agb/src/hash_map.rs | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/agb/src/hash_map.rs b/agb/src/hash_map.rs
index e338a17e..d38e60c2 100644
--- a/agb/src/hash_map.rs
+++ b/agb/src/hash_map.rs
@@ -1263,6 +1263,22 @@ mod test {
         drop_registry.assert_dropped_n_times(id1, 2);
     }
 
+    #[test_case]
+    fn test_retain(_gba: &mut Gba) {
+        let mut map = HashMap::new();
+
+        for i in 0..100 {
+            map.insert(i, i);
+        }
+
+        map.retain(|k, _| k % 2 == 0);
+
+        assert_eq!(map[&2], 2);
+        assert_eq!(map.get(&3), None);
+
+        assert_eq!(map.iter().count(), 50); // force full iteration
+    }
+
     // Following test cases copied from the rust source
     // https://github.com/rust-lang/rust/blob/master/library/std/src/collections/hash/map/tests.rs
     mod rust_std_tests {