travis: try to fix flaky tests

.travis.yml

@@ -68,3 +68,5 @@ branches:
 cache:
   directories:
   - $HOME/.npm
+  - $HOME/.rvm
+  - $HOME/.bundle

bin/restore-mastodon-data.js

@@ -45,6 +45,7 @@ export async function restoreMastodonData () {
   let internalIdsToIds = {}
   for (let action of actions) {
     console.log(JSON.stringify(action))
+    await new Promise(resolve => setTimeout(resolve, 100)) // sleep because otherwise order may not be preserved
     let accessToken = users[action.user].accessToken
 
     if (action.post) {

tests/utils.js

@@ -48,15 +48,15 @@ export const sleep = timeout => new Promise(resolve => setTimeout(resolve, timeo
 export const getUrl = exec(() => window.location.href)
 
 export const getActiveElementClass = exec(() =>
-  document.activeElement ? document.activeElement.getAttribute('class') : ''
+  (document.activeElement && document.activeElement.getAttribute('class')) || ''
 )
 
 export const getActiveElementInnerText = exec(() =>
-  document.activeElement && document.activeElement.innerText
+  (document.activeElement && document.activeElement.innerText) || ''
 )
 
 export const getActiveElementAriaLabel = exec(() =>
-  document.activeElement ? document.activeElement.getAttribute('aria-label') : ''
+  (document.activeElement && document.activeElement.getAttribute('aria-label')) || ''
 )
 
 export const getActiveElementInsideNthStatus = exec(() => {
@@ -67,6 +67,7 @@ export const getActiveElementInsideNthStatus = exec(() => {
     }
     element = element.parentElement
   }
+  return ''
 })
 
 export const goBack = exec(() => window.history.back())