testsuite: add job-info jobspec update coverage

Problem: There is no coverage for job-info lookups w/ the
current flag or update-watch for the jobspec key.

Add some coverage in t2233-job-info-update.t.

t/t2233-job-info-update.t

@@ -309,6 +309,57 @@ test_expect_success NO_CHAIN_LINT 'job-info: lookup current returns cached R fro
 	cat lookup9B.out | jq -e ".execution.expiration == ${update1}"
 '
 
+#
+# lookup w/ current and update-watch works with jobspec
+#
+
+# Usage: check_duration jobid VALUE
+# Check and wait for duration to reach VALUE.
+#
+check_duration() {
+       local jobid=$1
+       local value=$2
+       local i=0
+       while (! ${INFO_LOOKUP} -c ${jobid} jobspec | jq -e ".attributes.system.duration == ${value}" \
+	       && [ $i -lt 200 ] )
+       do
+	       sleep 0.1
+	       i=$((i + 1))
+       done
+       if [ "$i" -eq "200" ]
+       then
+	       return 1
+       fi
+       return 0
+}
+
+test_expect_success 'job-info: lookup current works with jobspec' '
+	jobid=$(flux submit --urgency=hold true) &&
+	check_duration $jobid 0 &&
+	flux update $jobid duration=100s &&
+	check_duration $jobid 100.0 &&
+	flux update $jobid duration=200s &&
+	check_duration $jobid 200.0 &&
+	flux cancel $jobid
+'
+
+test_expect_success NO_CHAIN_LINT 'job-info: update watch works with jobspec' '
+	jobid=$(flux submit --urgency=hold true) &&
+	flux update $jobid duration=100s &&
+	watchers=$(get_update_watchers)
+	${UPDATE_WATCH} $jobid jobspec > watchjobspec.out &
+	watchpid=$! &&
+	wait_update_watchers $((watchers+1)) &&
+	${WAITFILE} --count=1 --timeout=30 --pattern="duration" watchjobspec.out &&
+	flux update $jobid duration=200s &&
+	${WAITFILE} --count=2 --timeout=30 --pattern="duration" watchjobspec.out &&
+	flux cancel $jobid &&
+	wait $watchpid &&
+	test $(cat watchjobspec.out | wc -l) -eq 2 &&
+	head -n1 watchjobspec.out | jq -e ".attributes.system.duration == 100.0" &&
+	tail -n1 watchjobspec.out | jq -e ".attributes.system.duration == 200.0"
+'
+
 #
 # security tests
 #
@@ -327,6 +378,7 @@ test_expect_success 'job-info: non job owner cannot lookup key' '
 	jobid=`flux submit --wait-event=start sleep inf` &&
 	set_userid 9999 &&
 	test_must_fail ${UPDATE_LOOKUP} $jobid R &&
+	test_must_fail ${INFO_LOOKUP} -u $jobid jobspec &&
 	unset_userid &&
 	flux cancel $jobid
 '
@@ -335,6 +387,7 @@ test_expect_success 'job-info: non job owner cannot watch key' '
 	jobid=`flux submit --wait-event=start sleep inf` &&
 	set_userid 9999 &&
 	test_must_fail ${UPDATE_WATCH} $jobid R &&
+	test_must_fail ${UPDATE_WATCH} $jobid jobspec &&
 	unset_userid &&
 	flux cancel $jobid
 '