diff --git a/tests/unit/util/main.c b/tests/unit/util/main.c
index 70c31de6d8b..18a33802eb5 100644
--- a/tests/unit/util/main.c
+++ b/tests/unit/util/main.c
@@ -146,6 +146,11 @@ ZTEST(util_cxx, test_IS_SHIFTED_BIT_MASK)
 	run_IS_SHIFTED_BIT_MASK();
 }
 
+ZTEST(util_cxx, test_DIV_ROUND_UP)
+{
+	run_DIV_ROUND_UP();
+}
+
 ZTEST_SUITE(util_cxx, NULL, NULL, NULL, NULL, NULL);
 
 #if __cplusplus
@@ -284,5 +289,9 @@ ZTEST(util_cc, test_IS_SHIFTED_BIT_MASK)
 	run_IS_SHIFTED_BIT_MASK();
 }
 
+ZTEST(util_cc, test_DIV_ROUND_UP)
+{
+	run_DIV_ROUND_UP();
+}
 
 ZTEST_SUITE(util_cc, NULL, NULL, NULL, NULL, NULL);
diff --git a/tests/unit/util/test.inc b/tests/unit/util/test.inc
index 7aca1e455ed..aef613b9591 100644
--- a/tests/unit/util/test.inc
+++ b/tests/unit/util/test.inc
@@ -608,3 +608,10 @@ void run_IS_SHIFTED_BIT_MASK(void)
 	zassert_true(IS_SHIFTED_BIT_MASK(0x80000000UL, 31));
 	zassert_true(IS_SHIFTED_BIT_MASK(0x8000000000000000ULL, 63));
 }
+
+void run_DIV_ROUND_UP(void)
+{
+	zassert_equal(DIV_ROUND_UP(0, 1), 0);
+	zassert_equal(DIV_ROUND_UP(1, 2), 1);
+	zassert_equal(DIV_ROUND_UP(3, 2), 2);
+}