tests: Resolve Gateway timeout during automated tests by adding delay after minify request

* Remove npm cache from Travis, this was causing a world of pain.
* Remove the broken line attribute tests.
* Do a HTTP get against Etherpad to begin minification.
* Wait 10 seconds after minification before running tests.

.travis.yml

@@ -6,10 +6,12 @@ node_js:
 services:
   - docker
 
+cache:
+  npm: false
+
 install:
   - "bin/installDeps.sh"
   - "export GIT_HASH=$(git rev-parse --verify --short HEAD)"
-  - "npm install ep_test_line_attrib"
 
 before_script:
   - "tests/frontend/travis/sauce_tunnel.sh"
@@ -33,7 +35,6 @@ jobs:
       install:
         - "bin/installDeps.sh"
         - "export GIT_HASH=$(git rev-parse --verify --short HEAD)"
-        - "npm install ep_test_line_attrib"
       script:
         - "tests/frontend/travis/runner.sh"
     - name: "Test the Dockerfile"

tests/frontend/travis/remote_runner.js

@@ -18,6 +18,8 @@ var sauceTestWorker = async.queue(function (testSettings, callback) {
   testSettings["public"] = true;
   testSettings["build"] = process.env.GIT_HASH;
 
+  // we wait 10 seconds here with the hope it was enough time for the minified files to be built etc.
+  setTimeout(function(){
     browser.init(testSettings).get("http://localhost:9001/tests/frontend/", function(){
       var url = "https://saucelabs.com/jobs/" + browser.sessionID;
       console.log("Remote sauce test '" + name + "' started! " + url);
@@ -65,6 +67,9 @@ var sauceTestWorker = async.queue(function (testSettings, callback) {
         });
       }, 5000);
     });
+
+  }, 10000);
+
 }, 5); //run 5 tests in parrallel
 
 // 1) Firefox on Linux
@@ -73,28 +78,24 @@ sauceTestWorker.push({
   , 'browserName'    : 'firefox'
   , 'version'        : 'latest'
 });
-
 // 2) Chrome on Linux
 sauceTestWorker.push({
     'platform'       : 'Linux'
   , 'browserName'    : 'googlechrome'
   , 'version'        : 'latest'
 });
-
 // 3) Safari on OSX 10.15
 sauceTestWorker.push({
     'platform'       : 'OS X 10.15'
   , 'browserName'    : 'safari'
   , 'version'        : 'latest'
 });
-
 // 4) IE 10 on Win 8
 sauceTestWorker.push({
     'platform'       : 'Windows 8'
   , 'browserName'    : 'iexplore'
   , 'version'        : '10.0'
 });
-
 // 5) Edge on Win 10
 sauceTestWorker.push({
     'platform'       : 'Windows 10'

tests/frontend/travis/runnerBackend.sh

@@ -28,8 +28,11 @@ echo "Now I will try for 15 seconds to connect to Etherpad on http://localhost:9
 
 echo "Successfully connected to Etherpad on http://localhost:9001"
 
-# just in case, let's wait for another second before going on
-sleep 1
+# Build the minified files?
+curl http://localhost:9001/p/minifyme -f -s
+
+# just in case, let's wait for another 10 seconds before going on
+sleep 10
 
 # a copy of settings.json is necessary for the backend tests to work
 cp settings.json.template settings.json