From 9fbd4200891e85363e561635ef9c077d9de0c0df Mon Sep 17 00:00:00 2001
From: Corwin <corwin@kuiper.dev>
Date: Sat, 17 Feb 2024 16:25:02 +0000
Subject: [PATCH] add test that atomic read / write works

---
 agb/src/interrupt.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/agb/src/interrupt.rs b/agb/src/interrupt.rs
index 8caab48c..5049d07b 100644
--- a/agb/src/interrupt.rs
+++ b/agb/src/interrupt.rs
@@ -364,6 +364,8 @@ pub fn profiler(timer: &mut crate::timer::Timer, period: u16) -> InterruptHandle
 
 #[cfg(test)]
 mod tests {
+    use portable_atomic::AtomicU8;
+
     use super::*;
 
     #[test_case]
@@ -381,4 +383,14 @@ mod tests {
             assert_eq!(INTERRUPTS_ENABLED.get(), 0);
         });
     }
+
+    #[test_case]
+    fn atomic_check(_gba: &mut crate::Gba) {
+        static ATOMIC: AtomicU8 = AtomicU8::new(8);
+
+        for i in 0..=255 {
+            ATOMIC.store(i, Ordering::SeqCst);
+            assert_eq!(ATOMIC.load(Ordering::SeqCst), i);
+        }
+    }
 }