tests: Add negative tests for assert_int_in_range()

tests/CMakeLists.txt

@@ -28,6 +28,7 @@ set(CMOCKA_TESTS
     test_assert_u_int
     test_assert_u_int_fail
     test_assert_range
+    test_assert_range_fail
     test_basics
     test_skip
     test_stop
@@ -83,6 +84,13 @@ set_tests_properties(
         "\\[  FAILED  \\] integer_tests: 4 test"
 )
 
+set_tests_properties(
+    test_assert_range_fail
+        PROPERTIES
+        PASS_REGULAR_EXPRESSION
+        "\\[  FAILED  \\] range_fail_tests: 4 test"
+)
+
 # test_expect_check_fail
 set_tests_properties(
     test_expect_check_fail

tests/test_assert_range_fail.c

@@ -0,0 +1,43 @@
+#include "config.h"
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <setjmp.h>
+#include <stdint.h>
+#include <cmocka.h>
+#include <cmocka_private.h>
+
+static void test_assert_int_in_range_fail_1(void **state)
+{
+    (void)state; /* unused */
+    assert_int_in_range(0, 1, 2);
+}
+
+static void test_assert_int_in_range_fail_2(void **state)
+{
+    (void)state; /* unused */
+    assert_int_in_range(2, -1, 1);
+}
+
+static void test_assert_int_in_range_fail_3(void **state)
+{
+    (void)state; /* unused */
+    assert_int_in_range(0, 1, INTMAX_MAX);
+}
+
+static void test_assert_int_in_range_fail_4(void **state)
+{
+    (void)state; /* unused */
+    assert_int_in_range(0, INTMAX_MIN, -1);
+}
+
+int main(void) {
+    const struct CMUnitTest range_fail_tests[] = {
+        cmocka_unit_test(test_assert_int_in_range_fail_1),
+        cmocka_unit_test(test_assert_int_in_range_fail_2),
+        cmocka_unit_test(test_assert_int_in_range_fail_3),
+        cmocka_unit_test(test_assert_int_in_range_fail_4),
+    };
+
+    return cmocka_run_group_tests(range_fail_tests, NULL, NULL);
+}