thread, atomic

1 files changed, 26 insertions, 0 deletions

diff --git a/source/test/unittests/atomic.test.c b/source/test/unittests/atomic.test.c
new file mode 100644
index 0000000..9f1a10b
--- /dev/null
+++ b/source/test/unittests/atomic.test.c
@@ -0,0 +1,26 @@
+#include "../../kit/atomic.h"
+
+#define KIT_TEST_FILE atomic
+#include "../../kit_test/test.h"
+
+TEST("atomic store and load") {
+  ATOMIC(int) value;
+  atomic_store_explicit(&value, 20, memory_order_relaxed);
+  REQUIRE(atomic_load_explicit(&value, memory_order_relaxed) == 20);
+}
+
+TEST("atomic exchange") {
+  ATOMIC(int) value;
+  atomic_store_explicit(&value, 20, memory_order_relaxed);
+  REQUIRE(atomic_exchange_explicit(&value, 42,
+                                   memory_order_relaxed) == 20);
+  REQUIRE(atomic_load_explicit(&value, memory_order_relaxed) == 42);
+}
+
+TEST("atomic fetch add") {
+  ATOMIC(int) value;
+  atomic_store_explicit(&value, 20, memory_order_relaxed);
+  REQUIRE(atomic_fetch_add_explicit(&value, 22,
+                                    memory_order_relaxed) == 20);
+  REQUIRE(atomic_load_explicit(&value, memory_order_relaxed) == 42);
+}