diff --git a/lib/common/tests/scores/pcmk_readable_score_test.c b/lib/common/tests/scores/pcmk_readable_score_test.c
index 3cd69965fa..72d7f9975e 100644
--- a/lib/common/tests/scores/pcmk_readable_score_test.c
+++ b/lib/common/tests/scores/pcmk_readable_score_test.c
@@ -1,70 +1,44 @@
 /*
  * Copyright 2022 the Pacemaker project contributors
  *
  * The version control history for this file may have further details.
  *
  * This source code is licensed under the GNU Lesser General Public License
  * version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
  */
 
 #include <crm_internal.h>
 
 #include <stdarg.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <setjmp.h>
 #include <cmocka.h>
 
-static void
-invalid_params(void **state)
-{
-    char *buf = malloc(9);
-
-    assert_null(score2char_stack(100, NULL, 9));
-    assert_null(score2char_stack(100, buf, 9));
-
-    free(buf);
-}
-
 static void
 outside_limits(void **state)
 {
-    char *buf = malloc(10);
-
-    buf = score2char_stack(CRM_SCORE_INFINITY * 2, buf, 10);
-    assert_string_equal(buf, CRM_INFINITY_S);
-
-    buf = score2char_stack(-CRM_SCORE_INFINITY * 2, buf, 10);
-    assert_string_equal(buf, CRM_MINUS_INFINITY_S);
-
-    free(buf);
+    assert_string_equal(pcmk_readable_score(CRM_SCORE_INFINITY * 2),
+                        CRM_INFINITY_S);
+    assert_string_equal(pcmk_readable_score(-CRM_SCORE_INFINITY * 2),
+                        CRM_MINUS_INFINITY_S);
 }
 
 static void
 inside_limits(void **state)
 {
-    char *buf = malloc(10);
-
-    buf = score2char_stack(0, buf, 10);
-    assert_string_equal(buf, "0");
-
-    buf = score2char_stack(1024, buf, 10);
-    assert_string_equal(buf, "1024");
-
-    buf = score2char_stack(-1024, buf, 10);
-    assert_string_equal(buf, "-1024");
-
-    free(buf);
+    assert_string_equal(pcmk_readable_score(0), "0");
+    assert_string_equal(pcmk_readable_score(1024), "1024");
+    assert_string_equal(pcmk_readable_score(-1024), "-1024");
 }
 
 int main(int argc, char **argv)
 {
     const struct CMUnitTest tests[] = {
-        cmocka_unit_test(invalid_params),
         cmocka_unit_test(outside_limits),
         cmocka_unit_test(inside_limits),
     };
 
     cmocka_set_message_output(CM_OUTPUT_TAP);
     return cmocka_run_group_tests(tests, NULL, NULL);
 }