dockerized phantomjs的超时问题

Question

I would like to do some test using nodejs and phantomjs inside a docker container. All these tests work perfectly directly on a centos or debian server

npm run test

smart-tv-portal-tests@1.0.0 test /data/SmartTVPortal/tests mocha test-*.js

test suite for xxx ✓ should respond 200 OR 304 for xxx (173ms) ✓ should assert that the reponse is application/json ✓ should be able to parse json ✓ should validate JSON integrity (videos.length === 6) ✓ should validate http status with phantomjs (160ms) ✓ should validate carousel is loaded (761ms) ✓ should check last carousel element ✓ should navigate interactive in the main carousel (121ms)

8 passing (1s)

but if I run the very same test within a docker container (based either on alpine/centos/ubuntu) it fails with timeout issue

docker run -ti --net=host --rm --volume /data/SmartTVPortal/:/srv --workdir /srv/tests arte/hbbtv bash

I get

bash-4.3# npm run test

smart-tv-portal-tests@1.0.0 test /srv/tests mocha test-*.js

test suite for xxx ✓ should respond 200 OR 304 for xxx (2534ms) ✓ should assert that the reponse is application/json ✓ should be able to parse json ✓ should validate JSON integrity (videos.length === 6) ✓ should validate http status with phantomjs (89ms) 1) should validate carousel is loaded Unhandled rejection text evaluatePage

global code evaluateJavaScript@[native code] evaluate@phantomjs://platform/webpage.js:390:39 phantomjs://code/bridge.js:121:61 at /srv/tests/node_modules/node-horseman/lib/actions.js:989:36 at tryCatcher (/srv/tests/node_modules/bluebird/js/release/util.js:16:23) at Function.Promise.fromNode.Promise.fromCallback (/srv/tests/node_modules/bluebird/js/release/promise.js:179:30) at Horseman. (/srv/tests/node_modules/node-horseman/lib/actions.js:987:29) at Horseman.tryCatcher (/srv/tests/node_modules/bluebird/js/release/util.js:16:23) at Promise._settlePromiseFromHandler (/srv/tests/node_modules/bluebird/js/release/promise.js:510:31) at Promise._settlePromise (/srv/tests/node_modules/bluebird/js/release/promise.js:567:18) at Promise._settlePromiseCtx (/srv/tests/node_modules/bluebird/js/release/promise.js:604:10) at Async._drainQueue (/srv/tests/node_modules/bluebird/js/release/async.js:143:12) at Async._drainQueues (/srv/tests/node_modules/bluebird/js/release/async.js:148:10) at Immediate.Async.drainQueues (/srv/tests/node_modules/bluebird/js/release/async.js:17:14) at runCallback (timers.js:574:20) at tryOnImmediate (timers.js:554:5) at processImmediate [as _immediateCallback] (timers.js:533:5)

Unhandled rejection TimeoutError: timeout during .waitFor() after 15038 ms at Timeout.waitForCheck (/srv/tests/node_modules/node-horseman/lib/actions.js:1643:13) at Timeout.wrapper (timers.js:425:11) at tryOnTimeout (timers.js:232:11) at Timer.listOnTimeout (timers.js:202:5)

 2) should check last carousel element Unhandled rejection text evaluatePage 

global code evaluateJavaScript@[native code] evaluate@phantomjs://platform/webpage.js:390:39 phantomjs://code/bridge.js:121:61 at /srv/tests/node_modules/node-horseman/lib/actions.js:989:36 at tryCatcher (/srv/tests/node_modules/bluebird/js/release/util.js:16:23) at Function.Promise.fromNode.Promise.fromCallback (/srv/tests/node_modules/bluebird/js/release/promise.js:179:30) at Horseman. (/srv/tests/node_modules/node-horseman/lib/actions.js:987:29) at Horseman.tryCatcher (/srv/tests/node_modules/bluebird/js/release/util.js:16:23) at Promise._settlePromiseFromHandler (/srv/tests/node_modules/bluebird/js/release/promise.js:510:31) at Promise._settlePromise (/srv/tests/node_modules/bluebird/js/release/promise.js:567:18) at Promise._settlePromiseCtx (/srv/tests/node_modules/bluebird/js/release/promise.js:604:10) at Async._drainQueue (/srv/tests/node_modules/bluebird/js/release/async.js:143:12) at Async._drainQueues (/srv/tests/node_modules/bluebird/js/release/async.js:148:10) at Immediate.Async.drainQueues (/srv/tests/node_modules/bluebird/js/release/async.js:17:14) at runCallback (timers.js:574:20) at tryOnImmediate (timers.js:554:5) at processImmediate [as _immediateCallback] (timers.js:533:5)

 3) should navigate interactive in the main carousel 

5 passing (30s) 3 failing

1) test suite for xxx should validate carousel is loaded: Error: Timeout of 10000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves.

2) test suite for xxx should check last carousel element: Error: Timeout of 7000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves.

3) test suite for xxx should navigate interactive in the main carousel: Error: Timeout of 10000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves.

The falling part of the test is

it('should validate carousel is loaded', function(done) {
        this.timeout(10000);
        horseman
            .open(WEBAPP_URL)
            .waitFor(function() {
                return document.querySelector('#loadingPanel').style.visibility === 'hidden';
            }, true)
            .waitFor(function() {
                return document.querySelectorAll('.videosCarouselItem').length === 4;
            }, true)
            .then(function(res) {
                done();
            });
    });

I guess the problem is coming from phantom not able to interpret jquery and so can't find the selector but the problem appears only within a docker container.

Problem is the same using casperjs

I've dug a little more) The very part that 'timeout' within the docker container is

  .waitForSelector('.videosCarouselItem')
  .count('.videosCarouselItem')

and give me the error

Unhandled rejection TimeoutError: timeout during .waitFor() after 15059 ms
    at Timeout.waitForCheck (/srv/tests/node_modules/node-horseman/lib/actions.js:1643:13)
    at Timeout.wrapper (timers.js:425:11)
    at tryOnTimeout (timers.js:232:11)
    at Timer.listOnTimeout (timers.js:202:5)

Outside docker it's OK, I get a 4 (that's correct)

Answer 1

Sorry for the inconvenience, issue was linked to our tested applciation, I had to change the URL by adding some queryparam. I don't why it was working with a browser inside windows, or phantomjs directly on a VM but not inside a docker but now it's OK.

I found the error using the snapshot feature.