cypress: integrate cypress-failed-log package.

To get a better log in case of error.

Change-Id: Id8f72c78cb8a80e30ba3012147caa8106e1e7ce2
Reviewed-on: https://gerrit.libreoffice.org/c/online/+/90470
Tested-by: Jenkins CollaboraOffice <jenkinscollaboraoffice@gmail.com>
Reviewed-by: Tamás Zolnai <tamas.zolnai@collabora.com>

cypress_test/.gitignore

@@ -2,3 +2,4 @@ node_modules
 cypress
 package-lock.json
 workdir
+support/commands.js

cypress_test/cypress.json

@@ -3,6 +3,6 @@
     "video" : false,
     "pluginsFile" : "plugins/index.js",
     "defaultCommandTimeout" : 6000,
-    "supportFile" : false,
+    "supportFile" : "support/index.js",
     "ignoreTestFiles" : "*helper.js"
 }

cypress_test/package.json

@@ -5,6 +5,7 @@
   "license": "MPL-2.0",
   "dependencies": {
     "cypress": "4.1.0",
+    "cypress-failed-log": "2.6.2",
     "eslint": "6.8.0",
     "get-port-cli": "2.0.0",
     "wait-on": "4.0.0"

cypress_test/plugins/index.js

@@ -4,7 +4,8 @@ var tasks = require('./tasks');
 
 function plugin(on, config) {
 	on('task', {
-		copyFile: tasks.copyFile
+		copyFile: tasks.copyFile,
+		failed: require('cypress-failed-log/src/failed')()
 	});
 
 	return config;

cypress_test/support/index.js

@@ -0,0 +1,3 @@
+/* global require */
+
+require('cypress-failed-log');