Support for Elasticsearch 7.7 (#1192)

test/utils/index.js

@@ -4,12 +4,30 @@
 
 'use strict'
 
+const { promisify } = require('util')
+const sleep = promisify(setTimeout)
 const buildServer = require('./buildServer')
 const buildCluster = require('./buildCluster')
 const connection = require('./MockConnection')
 
+async function waitCluster (client, waitForStatus = 'green', timeout = '50s', times = 0) {
+  if (!client) {
+    throw new Error('waitCluster helper: missing client instance')
+  }
+  try {
+    await client.cluster.health({ waitForStatus, timeout })
+  } catch (err) {
+    if (++times < 10) {
+      await sleep(5000)
+      return waitCluster(client, waitForStatus, timeout, times)
+    }
+    throw err
+  }
+}
+
 module.exports = {
   buildServer,
   buildCluster,
-  connection
+  connection,
+  waitCluster
 }