diff --git a/lib/pengine/tests/utils/Makefile.am b/lib/pengine/tests/utils/Makefile.am
index 74def73707..4a3e8a256e 100644
--- a/lib/pengine/tests/utils/Makefile.am
+++ b/lib/pengine/tests/utils/Makefile.am
@@ -1,18 +1,21 @@
 #
 # 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 General Public License version 2
 # or later (GPLv2+) WITHOUT ANY WARRANTY.
 #
 
 include $(top_srcdir)/mk/tap.mk
 include $(top_srcdir)/mk/unittest.mk
 
+AM_CPPFLAGS += -I$(top_srcdir)/lib/pengine
 LDADD += $(top_builddir)/lib/pengine/libpe_status_test.la
 
 # Add "_test" to the end of all test program names to simplify .gitignore.
-check_PROGRAMS = pe__cmp_node_name_test
+check_PROGRAMS = \
+		 pe__cmp_node_name_test \
+		 pe__cmp_rsc_priority_test
 
 TESTS = $(check_PROGRAMS)
diff --git a/lib/pengine/tests/utils/pe__cmp_rsc_priority_test.c b/lib/pengine/tests/utils/pe__cmp_rsc_priority_test.c
new file mode 100644
index 0000000000..07ce301767
--- /dev/null
+++ b/lib/pengine/tests/utils/pe__cmp_rsc_priority_test.c
@@ -0,0 +1,50 @@
+/*
+ * 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 <crm/common/unittest_internal.h>
+#include <crm/pengine/internal.h>
+
+#include "pe_status_private.h"
+
+pe_resource_t rsc1;
+pe_resource_t rsc2;
+
+static void
+rscs_equal(void **state)
+{
+    rsc1.priority = 0;
+    rsc2.priority = 0;
+    assert_int_equal(pe__cmp_rsc_priority(NULL, NULL), 0);
+    assert_int_equal(pe__cmp_rsc_priority(&rsc1, &rsc2), 0);
+}
+
+static void
+rsc1_first(void **state)
+{
+    rsc1.priority = 1;
+    rsc2.priority = 0;
+    assert_int_equal(pe__cmp_rsc_priority(&rsc1, NULL), -1);
+    assert_int_equal(pe__cmp_rsc_priority(&rsc1, &rsc2), -1);
+}
+
+static void
+rsc2_first(void **state)
+{
+    rsc1.priority = 0;
+    rsc2.priority = 1;
+    assert_int_equal(pe__cmp_rsc_priority(NULL, &rsc2), 1);
+    assert_int_equal(pe__cmp_rsc_priority(&rsc1, &rsc2), 1);
+}
+
+PCMK__UNIT_TEST(NULL, NULL,
+                cmocka_unit_test(rscs_equal),
+                cmocka_unit_test(rsc1_first),
+                cmocka_unit_test(rsc2_first))