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tarekziade / molosonic

Experiment with Arsenic
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Error when running ./examples/simple.py w/ Firefox 60 #4

Open pdehaan opened 6 years ago

pdehaan commented 6 years ago

Re: https://github.com/tarekziade/molosonic/blob/master/examples/simple.py I'm using a venv w/ Python 3.6 and installing molosonic via Git, and get a pretty verbose debug dump when trying to run the /examples/simple.py file via $ molotov -c --verbose -p 1 -d 1 -w 1 ./simple.py:

$ molotov -c --verbose -p 1 -d 1 -w 1 ./simple.py

**** Molotov v1.6. Happy breaking! ****
Preparing 1 worker...
OK
1524257197820| Fgeckodriver| WORINFO: 0 geckodriver 0.19.1
1524257197825   geckodriver INFO    Listening on 127.0.0.1:58601
2018-04-20 13:46.37 request                        body={"desiredCapabilities": {"browserName": "firefox", "marionette": true, "acceptInsecureCerts": true}} method=POST url=http://localhost:58601/session
1524257198092   mozrunner::runner   INFO    Running command: "/Applications/Firefox.app/Contents/MacOS/firefox-bin" "-marionette" "-profile" "/var/folders/qc/g_f0szh95k1fzph34rhmf5jw0000gp/T/rust_mozprofile.iqxfjXasTK36"
Unable to read VR Path Registry from /Users/pdehaan/Library/Application Support/OpenVR/.openvr/openvrpaths.vrpath
Unable to read VR Path Registry from /Users/pdehaan/Library/Application Support/OpenVR/.openvr/openvrpaths.vrpath
2018-04-20 13:46:39.755 plugin-container[60772:30298693] *** CFMessagePort: bootstrap_register(): failed 1100 (0x44c) 'Permission denied', port = 0x7e3b, name = 'com.apple.tsm.portname'
See /usr/include/servers/bootstrap_defs.h for the error codes.
1524257200334| FMarionette | WORINFO: 1 Listening on port 58609
1524257200390   Marionette  WARN    TLS certificate errors will be ignored for this session
2018-04-20 13:46.40 response                       body={"desiredCapabilities": {"browserName": "firefox", "marionette": true, "acceptInsecureCerts": true}} data={'value': {'sessionId': '1ab8eea7-89b7-984e-8185-54dbb5813741', 'capabilities': {'acceptInsecureCerts': True, 'browserName': 'firefox', 'browserVersion': '60.0', 'moz:accessibilityChecks': False, 'moz:headless': False, 'moz:processID': 60771, 'moz:profile': '/var/folders/qc/g_f0szh95k1fzph34rhmf5jw0000gp/T/rust_mozprofile.iqxfjXasTK36', 'moz:useNonSpecCompliantPointerOrigin': False, 'moz:webdriverClick': True, 'pageLoadStrategy': 'normal', 'platformName': 'darwin', 'platformVersion': '17.5.0', 'rotatable': False, 'timeouts': {'implicit': 0, 'pageLoad': 300000, 'script': 30000}}}} method=POST response=<ClientResponse(http://127.0.0.1:58601/session) [200 OK]>
<CIMultiDictProxy('Connection': 'close', 'Content-Type': 'application/json; charset=utf-8', 'Cache-Control': 'no-cache', 'Content-Length': '551', 'Date': 'Fri, 20 Apr 2018 20:46:40 GMT')>
 url=http://localhost:58601/session
2018-04-20 13:46.40 request                        body=None method=DELETE url=http://localhost:58601/session/1ab8eea7-89b7-984e-8185-54dbb5813741
1524257200515   addons.xpi  WARN    Exception running bootstrap method shutdown on activity-stream@mozilla.org: [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIObserverService.removeObserver]"  nsresult: "0x80004005 (NS_ERROR_FAILURE)"  location: "JS frame :: resource://activity-stream/lib/SnippetsFeed.jsm :: uninit :: line 185"  data: no] Stack trace: uninit()@resource://activity-stream/lib/SnippetsFeed.jsm:185
onAction()@resource://activity-stream/lib/SnippetsFeed.jsm:201
_middleware/</<()@resource://activity-stream/lib/Store.jsm:49
Store/this[method]()@resource://activity-stream/lib/Store.jsm:28
uninit()@resource://activity-stream/lib/Store.jsm:151
uninit()@resource://activity-stream/lib/ActivityStream.jsm:294
uninit()@resource://gre/modules/addons/XPIProvider.jsm -> jar:file:///Applications/Firefox.app/Contents/Resources/browser/features/activity-stream@mozilla.org.xpi!/bootstrap.js:73
shutdown()@resource://gre/modules/addons/XPIProvider.jsm -> jar:file:///Applications/Firefox.app/Contents/Resources/browser/features/activity-stream@mozilla.org.xpi!/bootstrap.js:169
callBootstrapMethod()@resource://gre/modules/addons/XPIProvider.jsm:4436
observe()@resource://gre/modules/addons/XPIProvider.jsm:2287
GeckoDriver.prototype.quit()@driver.js:3300
despatch()@server.js:293
execute()@server.js:267
onPacket/<()@server.js:242
onPacket()@server.js:241
_onJSONObjectReady/<()@transport.js:500
[GFX1-]: Receive IPC close with reason=AbnormalShutdown
2018-04-20 13:46.40 response                       body=None data={'value': {}} method=DELETE response=<ClientResponse(http://127.0.0.1:58601/session/1ab8eea7-89b7-984e-8185-54dbb5813741) [200 OK]>
<CIMultiDictProxy('Connection': 'close', 'Content-Type': 'application/json; charset=utf-8', 'Cache-Control': 'no-cache', 'Content-Length': '13', 'Date': 'Fri, 20 Apr 2018 20:46:40 GMT')>
 url=http://localhost:58601/session/1ab8eea7-89b7-984e-8185-54dbb5813741
SUCCESSES: 0 | FAILURES: 0 | WORKERS: 1
*** Bye ***

$ cat requirements.txt
molotov
git+https://github.com/tarekziade/molosonic.git@master

$ python --version # Python 3.6.0
pdehaan commented 6 years ago

I'm a bit confused. I'm getting zero successes and zero failures. Almost all the error message looking texts seem to point towards Activity Stream, but not sure if that is just coincidence since it may be one of the first things loaded.

tarekziade commented 6 years ago

It works for me, do you see the browser displaying a page ? Are you able to run geckodriver manually?

pdehaan commented 6 years ago

OK, I must be missing some setup piece... In one tab, I'm running geckodriver@0.19.1:

$ geckodriver --version # geckodriver 0.19.1

$ geckodriver
1524507302157   geckodriver INFO    geckodriver 0.19.1
1524507302177   geckodriver INFO    Listening on 127.0.0.1:4444

In another tab, I'm trying to run this test; loadtest3.py:

# loadtest3.py

from molosonic import setup_browser, teardown_browser
import molotov

@molotov.setup_session()
async def _setup_session(wid, session):
    print("----- setup_session()")
    await setup_browser(session)

@molotov.teardown_session()
async def _teardown_session(wid, session):
    print("~~~~~ teardown_session")
    await teardown_browser(session)

@molotov.scenario(1)
async def example(session):
    print("!!!!!! test case")
    firefox = session.browser

    # go to example.com
    await firefox.get('https://www.google.com')

    # wait up to 5 seconds to get the h1 element from the page
    h1 = await firefox.wait_for_element(10, 'input')

    # print the text of the h1 element
    print(await h1.get_text())
$ molotov -c --verbose -p 1 -d 1 -w 1 ./loadtest3.py

**** Molotov v1.6. Happy breaking! ****
Preparing 1 worker...

----- setup_session()
OK
1524508594380| Fgeckodriver| WORINFO: 0 geckodriver 0.20.0
1524508594397   geckodriver INFO    Listening on 127.0.0.1:57331
2018-04-23 11:36.34 request                        body={"desiredCapabilities": {"browserName": "firefox", "marionette": true, "acceptInsecureCerts": true}} method=POST url=http://localhost:57331/session
1524508594828   mozrunner::runner   INFO    Running command: "/Applications/Firefox.app/Contents/MacOS/firefox-bin" "-marionette" "-profile" "/var/folders/qc/g_f0szh95k1fzph34rhmf5jw0000gp/T/rust_mozprofile.z2fGIEYP26LB"
Unable to read VR Path Registry from /Users/pdehaan/Library/Application Support/OpenVR/.openvr/openvrpaths.vrpath
Unable to read VR Path Registry from /Users/pdehaan/Library/Application Support/OpenVR/.openvr/openvrpaths.vrpath
2018-04-23 11:36:37.031 plugin-container[57173:35342237] *** CFMessagePort: bootstrap_register(): failed 1100 (0x44c) 'Permission denied', port = 0x7a3f, name = 'com.apple.tsm.portname'
See /usr/include/servers/bootstrap_defs.h for the error codes.
1524508597851| FMarionette | WORINFO: 1 Listening on port 57341
1524508597879   Marionette  WARN    TLS certificate errors will be ignored for this session
2018-04-23 11:36.37 response                       body={"desiredCapabilities": {"browserName": "firefox", "marionette": true, "acceptInsecureCerts": true}} data={'value': {'sessionId': 'b2f13d5a-f987-9144-8c4f-5e79a9ae5c6b', 'capabilities': {'acceptInsecureCerts': True, 'browserName': 'firefox', 'browserVersion': '60.0', 'moz:accessibilityChecks': False, 'moz:headless': False, 'moz:processID': 57172, 'moz:profile': '/var/folders/qc/g_f0szh95k1fzph34rhmf5jw0000gp/T/rust_mozprofile.z2fGIEYP26LB', 'moz:useNonSpecCompliantPointerOrigin': False, 'moz:webdriverClick': True, 'pageLoadStrategy': 'normal', 'platformName': 'darwin', 'platformVersion': '17.5.0', 'rotatable': False, 'timeouts': {'implicit': 0, 'pageLoad': 300000, 'script': 30000}}}} method=POST response=<ClientResponse(http://127.0.0.1:57331/session) [200 OK]>
<CIMultiDictProxy('Connection': 'close', 'Content-Type': 'application/json; charset=utf-8', 'Cache-Control': 'no-cache', 'Content-Length': '551', 'Date': 'Mon, 23 Apr 2018 18:36:37 GMT')>
 url=http://localhost:57331/session

~~~~~ teardown_session
2018-04-23 11:36.37 request                        body=None method=DELETE url=http://localhost:57331/session/b2f13d5a-f987-9144-8c4f-5e79a9ae5c6b
1524508597958   addons.xpi  WARN    Exception running bootstrap method shutdown on activity-stream@mozilla.org: [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIObserverService.removeObserver]"  nsresult: "0x80004005 (NS_ERROR_FAILURE)"  location: "JS frame :: resource://activity-stream/lib/SnippetsFeed.jsm :: uninit :: line 185"  data: no] Stack trace: uninit()@resource://activity-stream/lib/SnippetsFeed.jsm:185
onAction()@resource://activity-stream/lib/SnippetsFeed.jsm:201
_middleware/</<()@resource://activity-stream/lib/Store.jsm:49
Store/this[method]()@resource://activity-stream/lib/Store.jsm:28
uninit()@resource://activity-stream/lib/Store.jsm:151
uninit()@resource://activity-stream/lib/ActivityStream.jsm:294
uninit()@resource://gre/modules/addons/XPIProvider.jsm -> jar:file:///Applications/Firefox.app/Contents/Resources/browser/features/activity-stream@mozilla.org.xpi!/bootstrap.js:73
shutdown()@resource://gre/modules/addons/XPIProvider.jsm -> jar:file:///Applications/Firefox.app/Contents/Resources/browser/features/activity-stream@mozilla.org.xpi!/bootstrap.js:169
callBootstrapMethod()@resource://gre/modules/addons/XPIProvider.jsm:4436
observe()@resource://gre/modules/addons/XPIProvider.jsm:2287
GeckoDriver.prototype.quit()@driver.js:3300
despatch()@server.js:293
execute()@server.js:267
onPacket/<()@server.js:242
onPacket()@server.js:241
_onJSONObjectReady/<()@transport.js:500

JavaScript error: resource://gre/modules/JSONFile.jsm, line 159: Error: Data is not ready.
JavaScript error: resource://gre/modules/JSONFile.jsm, line 159: Error: Data is not ready.
JavaScript error: resource://gre/modules/JSONFile.jsm, line 159: Error: Data is not ready.
JavaScript error: resource://pdf.js/PdfJs.jsm, line 247: NS_ERROR_XPC_JAVASCRIPT_ERROR_WITH_DETAILS: [JavaScript Error: "Data is not ready." {file: "resource://gre/modules/JSONFile.jsm" line: 159}]'[JavaScript Error: "Data is not ready." {file: "resource://gre/modules/JSONFile.jsm" line: 159}]' when calling method: [nsIHandlerService::store]
*** UTM:SVC TimerManager:registerTimer called after profile-before-change notification. Ignoring timer registration for id: telemetry_modules_ping
JavaScript error: resource://gre/modules/osfile/osfile_async_front.jsm, line 408: Error: OS.File has been shut down. Rejecting post to DirectoryIterator_prototype_close
JavaScript error: resource://gre/modules/osfile/osfile_async_front.jsm, line 408: Error: OS.File has been shut down. Rejecting post to DirectoryIterator_prototype_close
JavaScript error: resource://gre/modules/ProfileAge.jsm, line 174: Error: Unable to fetch oldest profile entry: Error: OS.File has been shut down. Rejecting post to DirectoryIterator_prototype_next
JavaScript error: resource://gre/modules/ProfileAge.jsm, line 174: Error: Unable to fetch oldest profile entry: Error: OS.File has been shut down. Rejecting post to DirectoryIterator_prototype_next
1524508598635| Fgeckodriver::marionette ERROR   Failed to stop browser process
2018-04-23 11:36.38 response                       body=None data={'value': {}} method=DELETE response=<ClientResponse(http://127.0.0.1:57331/session/b2f13d5a-f987-9144-8c4f-5e79a9ae5c6b) [200 OK]>
<CIMultiDictProxy('Connection': 'close', 'Content-Type': 'application/json; charset=utf-8', 'Cache-Control': 'no-cache', 'Content-Length': '13', 'Date': 'Mon, 23 Apr 2018 18:36:38 GMT')>
 url=http://localhost:57331/session/b2f13d5a-f987-9144-8c4f-5e79a9ae5c6b
SUCCESSES: 0 | FAILURES: 0
*** Bye ***

When I run molotov, I briefly see a new Firefox browser instance launch, but then it quickly closes. From the console dump, I can see setup_session() and teardown_session() getting called, but I never see my test case getting invoked.

tarekziade commented 6 years ago

You don't need to run geckodriver, setup_browser does it for you and it needs to, so it knows which port to use. Let's add more logging!

@molotov.setup_session()
async def _setup_session(wid, session):
    print("----- setup_session()")
    await setup_browser(session)
    print("browser was set!")
    print(str(session.browser))

Also, let's add some in molosonic guts. In the start() function:

https://github.com/tarekziade/molosonic/blob/master/molosonic/__init__.py#L75

let's add a print after every line. one of them is not functionning in your case.

Sorry for this issue, it's hard since I can't reproduce. If that last attempt fails, we should meet and do it live!

pdehaan commented 6 years ago

Same results w/ a fresh $ pip install git+https://github.com/tarekziade/molosonic.git@master --upgrade:

# cat ./loadtest3.py
from molosonic import setup_browser, teardown_browser
import molotov

@molotov.setup_session()
async def _setup_session(wid, session):
    print("----- setup_session()\n\n")
    await setup_browser(session)
    print("browser was set!\n\n")
    print(str(session.browser))

@molotov.teardown_session()
async def _teardown_session(wid, session):
    print("~~~~~ teardown_session\n\n")
    await teardown_browser(session)

@molotov.scenario(1)
async def example(session):
    print("!!!!!! test case\n\n")
    firefox = session.browser

    # go to example.com
    print("aaaaaa\n\n")
    await firefox.get('https://www.google.com')

    # wait up to 5 seconds to get the h1 element from the page
    print("bbbbbb\n\n")
    h1 = await firefox.wait_for_element(10, 'input')

    # print the text of the h1 element
    print(await h1.get_text())
$ molotov -c --verbose -p 1 -d 1 -w 1 ./loadtest3.py | pbcopy

**** Molotov v1.6. Happy breaking! ****
Preparing 1 worker...
----- setup_session()

OK
SUCCESSES: 0 | FAILURES: 0 | WORKERS: 0
1524580863733   geckodriver INFO    geckodriver 0.20.0
1524580863739   geckodriver INFO    Listening on 127.0.0.1:56593
SUCCESSES: 0 | FAILURES: 0 | WORKERS: 1
SUCCESSES: 0 | FAILURES: 0 | WORKERS: 1
SUCCESSES: 0 | FAILURES: 0 | WORKERS: 1
2018-04-24 07:41.04 request                        body={"desiredCapabilities": {"browserName": "firefox", "marionette": true, "acceptInsecureCerts": true}} method=POST url=http://localhost:56593/session
1524580864193   mozrunner::runner   INFO    Running command: "/Applications/Firefox.app/Contents/MacOS/firefox-bin" "-marionette" "-profile" "/var/folders/qc/g_f0szh95k1fzph34rhmf5jw0000gp/T/rust_mozprofile.SEfk9o0fvFvQ"
SUCCESSES: 0 | FAILURES: 0 | WORKERS: 1
SUCCESSES: 0 | FAILURES: 0 | WORKERS: 1
Unable to read VR Path Registry from /Users/pdehaan/Library/Application Support/OpenVR/.openvr/openvrpaths.vrpath
SUCCESSES: 0 | FAILURES: 0 | WORKERS: 1
SUCCESSES: 0 | FAILURES: 0 | WORKERS: 1
Unable to read VR Path Registry from /Users/pdehaan/Library/Application Support/OpenVR/.openvr/openvrpaths.vrpath
SUCCESSES: 0 | FAILURES: 0 | WORKERS: 1
SUCCESSES: 0 | FAILURES: 0 | WORKERS: 1
2018-04-24 07:41:05.702 plugin-container[75546:36936920] *** CFMessagePort: bootstrap_register(): failed 1100 (0x44c) 'Permission denied', port = 0x803f, name = 'com.apple.tsm.portname'
See /usr/include/servers/bootstrap_defs.h for the error codes.
SUCCESSES: 0 | FAILURES: 0 | WORKERS: 1
SUCCESSES: 0 | FAILURES: 0 | WORKERS: 1
1524580866181   Marionette  INFO    Listening on port 56599
SUCCESSES: 0 | FAILURES: 0 | WORKERS: 1
SUCCESSES: 0 | FAILURES: 0 | WORKERS: 1
1524580866308   Marionette  WARN    TLS certificate errors will be ignored for this session
2018-04-24 07:41.06 response                       body={"desiredCapabilities": {"browserName": "firefox", "marionette": true, "acceptInsecureCerts": true}} data={'value': {'sessionId': '9d3cd7cd-614b-b743-9932-4276140f8a84', 'capabilities': {'acceptInsecureCerts': True, 'browserName': 'firefox', 'browserVersion': '60.0', 'moz:accessibilityChecks': False, 'moz:headless': False, 'moz:processID': 75545, 'moz:profile': '/var/folders/qc/g_f0szh95k1fzph34rhmf5jw0000gp/T/rust_mozprofile.SEfk9o0fvFvQ', 'moz:useNonSpecCompliantPointerOrigin': False, 'moz:webdriverClick': True, 'pageLoadStrategy': 'normal', 'platformName': 'darwin', 'platformVersion': '17.5.0', 'rotatable': False, 'timeouts': {'implicit': 0, 'pageLoad': 300000, 'script': 30000}}}} method=POST response=<ClientResponse(http://127.0.0.1:56593/session) [200 OK]>
<CIMultiDictProxy('Connection': 'close', 'Content-Type': 'application/json; charset=utf-8', 'Cache-Control': 'no-cache', 'Content-Length': '551', 'Date': 'Tue, 24 Apr 2018 14:41:06 GMT')>
 url=http://localhost:56593/session
browser was set!

<arsenic.session.Session object at 0x10f6c2240>
~~~~~ teardown_session

2018-04-24 07:41.06 request                        body=None method=DELETE url=http://localhost:56593/session/9d3cd7cd-614b-b743-9932-4276140f8a84
1524580866399   addons.xpi  WARN    Exception running bootstrap method shutdown on activity-stream@mozilla.org: [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIObserverService.removeObserver]"  nsresult: "0x80004005 (NS_ERROR_FAILURE)"  location: "JS frame :: resource://activity-stream/lib/SnippetsFeed.jsm :: uninit :: line 185"  data: no] Stack trace: uninit()@resource://activity-stream/lib/SnippetsFeed.jsm:185
onAction()@resource://activity-stream/lib/SnippetsFeed.jsm:201
_middleware/</<()@resource://activity-stream/lib/Store.jsm:49
Store/this[method]()@resource://activity-stream/lib/Store.jsm:28
uninit()@resource://activity-stream/lib/Store.jsm:151
uninit()@resource://activity-stream/lib/ActivityStream.jsm:294
uninit()@resource://gre/modules/addons/XPIProvider.jsm -> jar:file:///Applications/Firefox.app/Contents/Resources/browser/features/activity-stream@mozilla.org.xpi!/bootstrap.js:73
shutdown()@resource://gre/modules/addons/XPIProvider.jsm -> jar:file:///Applications/Firefox.app/Contents/Resources/browser/features/activity-stream@mozilla.org.xpi!/bootstrap.js:169
callBootstrapMethod()@resource://gre/modules/addons/XPIProvider.jsm:4436
observe()@resource://gre/modules/addons/XPIProvider.jsm:2287
GeckoDriver.prototype.quit()@driver.js:3300
despatch()@server.js:293
execute()@server.js:267
onPacket/<()@server.js:242
onPacket()@server.js:241
_onJSONObjectReady/<()@transport.js:500
Unable to read VR Path Registry from /Users/pdehaan/Library/Application Support/OpenVR/.openvr/openvrpaths.vrpath
SUCCESSES: 0 | FAILURES: 0 | WORKERS: 1
SUCCESSES: 0 | FAILURES: 0 | WORKERS: 1
*** UTM:SVC TimerManager:registerTimer called after profile-before-change notification. Ignoring timer registration for id: telemetry_modules_ping
SUCCESSES: 0 | FAILURES: 0 | WORKERS: 1
SUCCESSES: 0 | FAILURES: 0 | WORKERS: 1
1524580867071   geckodriver::marionette ERROR   Failed to stop browser process
2018-04-24 07:41.07 response                       body=None data={'value': {}} method=DELETE response=<ClientResponse(http://127.0.0.1:56593/session/9d3cd7cd-614b-b743-9932-4276140f8a84) [200 OK]>
<CIMultiDictProxy('Connection': 'close', 'Content-Type': 'application/json; charset=utf-8', 'Cache-Control': 'no-cache', 'Content-Length': '13', 'Date': 'Tue, 24 Apr 2018 14:41:07 GMT')>
 url=http://localhost:56593/session/9d3cd7cd-614b-b743-9932-4276140f8a84
SUCCESSES: 0 | FAILURES: 0
*** Bye ***

Digging through the output dump above, I was able to call Firefox from my Terminal using the following:

$ "/Applications/Firefox.app/Contents/MacOS/firefox-bin" "-marionette" "-profile" "/var/folders/qc/g_f0szh95k1fzph34rhmf5jw0000gp/T/rust_mozprofile.SEfk9o0fvFvQ"

So it looks like I can launch a browser no problem. Just a bit odd that the only debugging output I see was:

... but it doesn't even log anything from my @molotov.scenario(1).

$ "/Applications/Firefox.app/Contents/MacOS/firefox-bin" "-profile" "/var/folders/qc/g_f0szh95k1fzph34rhmf5jw0000gp/T/rust_mozprofile.0NpQJYafDYZ9" --version
# Mozilla Firefox 60.0
pdehaan commented 6 years ago

Actually, we can probably ignore me. Something is weird, but it's probably just me. Your sample.py would never work for me, because I can't seem to resolve "example.com" in my browser.

But if I use this modified version (your GitHub repo), I am able to extract all text on the page:

from molosonic import setup_browser, teardown_browser
import molotov

@molotov.setup_session()
async def _setup_session(wid, session):
    await setup_browser(session)

@molotov.teardown_session()
async def _teardown_session(wid, session):
    await teardown_browser(session)

@molotov.scenario(1)
async def example(session):
    firefox = session.browser
    # go to example.com
    await firefox.get('https://github.com/tarekziade/molosonic')

    # wait up to 5 seconds to get the h1 element from the page
    h1 = await firefox.wait_for_element(5, 'div.application-main')

    # print the text of the h1 element
    print("!!!!!!!!!!" + await h1.get_text() + "@@@@@@@@@")
$ molotov --max-runs 1 simple.py

I'll keep digging into my test case and try and figure out why it's failing, but the modified sample file is working.

tarekziade commented 6 years ago

oh... interesting. I guess some error is not bubbling up. Thanks for digging ! I probably have enough to reproduce