Fixed failing test on public link share

tests/acceptance/features/webUISharingPublic/shareByPublicLink.feature

@@ -388,7 +388,7 @@ Feature: Share by public link
     And the public uses the webUI to access the last public link created by user "user1" with password "qwertyui"
     Then file "lorem.txt" should be listed on the webUI
 
-  @skipOnOCIS @skip @issue-3830
+  @skipOnOCIS @issue-3830
   Scenario: user edits the password of an already existing public link and tries to access with old password
     Given user "user1" has shared folder "simple-folder" with link with "read, update, create, delete" permissions and password "pass123"
     And user "user1" has created a public link with following settings

tests/acceptance/stepDefinitions/sharingContext.js

@@ -13,6 +13,7 @@ const _ = require('lodash')
 const path = require('../helpers/path')
 const util = require('util')
 const { COLLABORATOR_PERMISSION_ARRAY, calculateDate } = require('../helpers/sharingHelper')
+let timeOfLastShareOperation = Date.now()
 
 /**
  *
@@ -107,6 +108,23 @@ Given(
   }
 )
 
+/**
+ * makes sure share operations are carried out maximum once a second to avoid same stime
+ */
+const waitBetweenShareOperations = async function() {
+  const timeSinceLastShare = Date.now() - timeOfLastShareOperation
+  if (timeSinceLastShare <= 1001) {
+    await client.pause(1001 - timeSinceLastShare)
+  }
+}
+
+/**
+ * update time in which the last share operation was carried out
+ */
+const updateTimeOfLastShareOperation = function() {
+  timeOfLastShareOperation = Date.now()
+}
+
 /**
  * creates a new share
  *
@@ -120,7 +138,7 @@ Given(
  * @param {string} extraParams.password Password of the share (public links)
  * @param {string} extraParams.expireDate Expiry date of the share
  */
-const shareFileFolder = function(
+const shareFileFolder = async function(
   elementToShare,
   sharer,
   receiver = null,
@@ -129,6 +147,7 @@ const shareFileFolder = function(
   name = null,
   extraParams = {}
 ) {
+  await waitBetweenShareOperations()
   const params = new URLSearchParams()
   elementToShare = path.resolve(elementToShare)
   const permissions = sharingHelper.humanReadablePermissionsToBitmask(permissionString)
@@ -147,12 +166,13 @@ const shareFileFolder = function(
     }
   }
   const url = 'apps/files_sharing/api/v1/shares'
-  return httpHelper
+  await httpHelper
     .postOCS(url, sharer, params)
     .then(res => res.json())
     .then(function(json) {
       httpHelper.checkOCSStatus(json, 'Could not create share. Message: ' + json.ocs.meta.message)
     })
+  await updateTimeOfLastShareOperation()
 }
 /**
  * create any share using dataTable