testsuite: add test for issue 1129

Problem: Fluxion needs a test for overflow in `calc_factor`.

Add a testsuite test based on the issue reproducer.

Author: milroy

t/issues/t1129-match-overflow.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+#
+#  Ensure fluxion calc_factor executes without overflow
+#
+
+log() { printf "issue#1129: $@\n" >&2; }
+
+TEST_SIZE=${TEST_SIZE:-900}
+
+log "Unloading modules..."
+flux module remove sched-simple
+flux module remove resource
+
+flux config load <<EOF
+[sched-fluxion-qmanager]
+queue-policy = "easy"
+
+[resource]
+noverify = true
+norestrict = true
+
+[[resource.config]]
+hosts = "test[1-${TEST_SIZE}]"
+cores = "0-112"
+gpus = "0-8"
+EOF
+
+flux module load resource monitor-force-up
+flux module load sched-fluxion-resource
+flux module load sched-fluxion-qmanager
+flux queue start --all --quiet
+flux resource list
+flux resource status
+
+log "Running test job."
+flux run -vvv -N${TEST_SIZE} -n${TEST_SIZE} \
+	--setattr=exec.test.run_duration=1ms \
+	true
+
+log "reloading sched-simple..."
+flux module remove sched-fluxion-qmanager
+flux module remove sched-fluxion-resource
+flux module load sched-simple