[plugin-elasticsearch] Fix the test for elasticsearch

mackerel-plugin-elasticsearch/test.sh

@@ -25,12 +25,13 @@ docker run -d \
 	-e "discovery.type=single-node" \
 	-e "ingest.geoip.downloader.enabled=false" \
 	elasticsearch:8.5.0
-trap 'docker stop test-$plugin; docker rm test-$plugin; exit' EXIT
-sleep 60
+trap 'docker stop test-$plugin; docker rm test-$plugin; exit 1' 1 2 3 15
 
 # to store previous value to calculate a diff of metrics
-$plugin -scheme https -port $port -user=elastic -password $password -insecure -suppress-missing-error >/dev/null 2>&1
+../tool/waituntil.bash -n 300 $plugin -scheme https -port $port -user=elastic -password $password -insecure -suppress-missing-error >/dev/null 2>&1
+
 sleep 1
+
 $plugin -scheme https -port $port -user=elastic -password $password -insecure -suppress-missing-error | graphite-metric-test -f rule.txt
 status=$?
 

tool/waituntil.bash

@@ -0,0 +1,35 @@
+#!/bin/bash
+# usage: waituntil [-n count] command [arg ...]
+
+usage()
+{
+	echo "usage: $(basename $0) [-n count] command [arg ...]" >&2
+	exit 2
+}
+
+count=0 # unlimited
+while getopts :n: OPT
+do
+	case "$OPT" in
+	:)	usage ;;
+	n)	count="$OPTARG" ;;
+	\?)	usage ;;
+	esac
+done
+shift $((OPTIND - 1))
+if (($# == 0))
+then
+	usage
+fi
+
+i=0
+while (($count == 0 || $i < $count))
+do
+	if command "$@"
+	then
+		exit 0
+	fi
+	sleep 1
+	((i++))
+done
+exit 1