t: add tests for holding/releasing jobs

Problem: t1034-mf-priority-max-nodes.t does not have any tests
simulating holding and releasing an association's set of jobs due to a
max nodes limit.

Add some tests.

t/t1034-mf-priority-max-nodes.t

@@ -38,7 +38,9 @@ test_expect_success 'add a user to the DB' '
 		--username=user1 \
 		--userid=5001 \
 		--bank=A \
-		--max-nodes=5
+		--max-nodes=5 \
+		--max-active-jobs=100 \
+		--max-running-jobs=99
 '
 
 test_expect_success 'send flux-accounting DB information to the plugin' '
@@ -96,6 +98,29 @@ test_expect_success 'cancel the other job and check that cur_nodes == 0' '
 	jq -e ".mf_priority_map[0].banks[0].cur_nodes == 0" <query.json
 '
 
+test_expect_success 'submit a 5-node job' '
+	job1=$(flux python ${SUBMIT_AS} 5001 -N5 sleep 60) &&
+	flux job wait-event -f json $job1 priority
+'
+
+test_expect_success 'submit a job that would put user over max-nodes limit' '
+	held_job=$(flux python ${SUBMIT_AS} 5001 -N1 sleep 60) &&
+	flux job wait-event -vt 60 $held_job dependency-add &&
+	flux job info $held_job eventlog > eventlog.out &&
+	grep "dependency-add" eventlog.out
+'
+
+test_expect_success 'cancel running job' '
+	flux cancel $job1
+'
+
+test_expect_success 'check state of held job' '
+	flux job wait-event -vt 5 $held_job alloc &&
+	flux job info $held_job eventlog > eventlog.out &&
+	grep "alloc" eventlog.out &&
+	flux cancel $held_job
+'
+
 test_expect_success 'shut down flux-accounting service' '
 	flux python -c "import flux; flux.Flux().rpc(\"accounting.shutdown_service\").get()"
 '