From 28fd42b64ae2878114225bea8ede2fb16d466908 Mon Sep 17 00:00:00 2001
From: batsumaru <>
Date: Sun, 9 Aug 2026 11:28:19 +0900
Subject: Test for explict overflow

---
 tests/test_fixed_point.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tests/test_fixed_point.cpp b/tests/test_fixed_point.cpp
index 8cb12d2..b3d3e78 100644
--- a/tests/test_fixed_point.cpp
+++ b/tests/test_fixed_point.cpp
@@ -7,3 +7,10 @@ TEST_CASE("fp_t addition is commutative") {
     CHECK(a + b == b + a);
     REQUIRE(a.raw != 0);
 }
+
+TEST_CASE("fp_t addition overflows") {
+    fp_t a = fp_t::from_raw(INT32_MAX);
+    fp_t b = fp_t::from_raw(1);
+    fp_t c = fp_t::from_raw(INT32_MIN);
+    CHECK(a + b == c);
+}
-- 
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