Switching (and even getting list of) contexts crashes Appium - ios-simulator

Software: Appium 1.3.6, iOS Simulator with iOS 8.2, Java code.
The simple scenario:
Clicking 'Login with Google' in our app -> A webview is opened (google login)
I need to input email|pass and click 'login' in webview. And here comes the trouble. Calling driver.getContextHandles(); (to find the webview and switch to it) causes Appium to crash.
The error: [REMOTE] Could not connect to WebKitRemoteDebugger server
What do I miss here? Is there a way to overcome this? Maybe you've done something similar?

To work with web contexts on iOS you have to run ios_webkit_debug_proxy_server with port 27753.
To install: brew install ios-webkit-debug-proxy
You can run it as standalone utility:
ios_webkit_debug_proxy -c UDID:27753
I recommend to run JS from Appium source code:
node appium/bin/ios-webkit-debug-proxy-launcher.js -c UDID:27753
See: https://github.com/appium/appium/blob/master/bin/ios-webkit-debug-proxy-launcher.js

Related

Appium: Starting an android app using an intent?

Does anyone know if it's possible to start an android app with appium using just the intentAction and URL as optionalIntentArguments? This is to test against an expo app in local dev mode running in the Expo client app; I am basically copying what the expo-cli does, but in appium/webdriver tests.
I can get it to work via adb directly (e.g. adb shell am start -a "android.intent.action.VIEW" -d "exp://127.0.0.1:19000" but I have to leave out the appPackage and appActivity, which are (I think!) mandatory with appium desktop app at least. I actually hacked in changing appium's validation to not require an appPackage and appActivity when the intent is provided, and then leave that out of the subsequent adb command, which works, but was wondering if there was an intended/official way to do it? I'm happy to PR what I have if not, but figured someone else might be trying to do the same thing.
(If anyone knows how to launch dev expo for iOS I am also currently trying to work that out!)
Thanks!

Can't start Cordova debugging to iOS simulator

I've followed the instructions at the link below to "Build and simulate a Cordova iOS app in the cloud". https://taco.visualstudio.com/en-us/docs/build_ios_cloud/
After completing the instructions I'm able to build and get the iOS simulator working, however, I'm unable to attach a debugger.
The message displayed in remotebuild is:
GET /cordova/build/5655/debug 500 10.865 ms - 28
In Visual Studio I see the following in the Debug window:
Starting launch process C:\Program Files (x86)\nodejs\node.exe "(redacted)\node_modules\vs-tac\emulator.js" --platform ios --action launch --path "(redacted)\buildInfo.json" --serverUrl https://(redacted):3000/cordova --certificateName (redacted) --language en-US --loglevel info --cliVersion 5.4.1 --npmInstallDir "(redacted)" --deployTarget "iPhone 5"
Timed out connecting debugger to remote Apache Cordova app. See Output window for JavaScript console output.
------ Cordova tools 5.4.1 already installed.
Requesting emulate on iOS Simulator for buildNumber 5655 on server https://(redacted):3000/cordova...
Emulated - Successfully sent to ios Simulator
------ Cordova tools 5.4.1 already installed.
Requesting debug on remote iOS device for buildNumber 5655 on server https://(redacted):3000/cordova...
Failed to Debug iOS remote for build (redacted)\buildInfo.json to https://(redacted):3000/cordova :
iPhone 5
My local development machine is using Visual Studio 2015 and Cordova 5.4.1. I have Node v0.12.2 installed locally and v0.12.9 installed on the MacInCloud. Following the instructions in the link above, I am NOT an admin on the Mac machine.
I've also already tried the instructions suggested in this SO answer: Visual Studio Debugger failing to connect to remote Apache Cordova app in iOS simulator
All the suggestions and the links provided by others were helpful but ultimately my assessment of the problem was not being admin/root on the Mac. The Visual Studio Cordova docs linked in my original question would suggest that you can do all that you need on a Mac without having admin/root access but in my experience that is just not the case.
To the credit of the MacInCloud group, they were very helpful in making changes that I requested to permissions and for reinstalling packages such as brew, ios-webkit-debug-proxy, remotebuild, etc... but after a while that back-and-forth kind of approach to fixing the issue proved painful. When I switched from a Managed MacInCloud server to a Dedicated one, everything worked almost immediately.
Looking back I think the initial execution of remotebuild, which executes brew -- without being admin on the box -- caused the whole process to go south. I was warned when I ran remotebuild for the first time that it would install some brew components that might need root access. That should have been a warning sign to me that not being admin on the box was going to be an issue...
Even though I was able to get a Dedicated MacInCloud server working, the lesson I learned about having control over the Mac prompted me to just buy a Mac Mini. That was a little more difficult to setup because I was now doing everything myself, but ultimately I think it will pay off in the end.
For anyone else struggling with similar issues here is a brain dump of some things I learned along the way:
You don't necessarily need to get Visual Studio talking to the Mac to debug Cordova applications. You can use Safari Web Inspector from the Mac. https://blog.nraboy.com/2015/10/debugging-your-apache-cordova-ios-app-with-safari/. Even though I finally got VS working, I actually prefer this because it is more like Chrome's debugger which I prefer to Visual Studio's.
The ios-webkit-debug-proxy NPM package mentioned in other comments and links is basically a proxy which Visual Studio uses to debug the simulator in exactly the same way Safari does as mentioned above. For this proxy to work you must also be allowed to connect to the Mac over ports 9221-9322. https://github.com/google/ios-webkit-debug-proxy. Prior to learning that I thought I only needed port 3000 open for the remotebuild proxy...
The package necessary for launching the iOS simulator from remotebuild is ios-sim and it will occasionally timeout when launching the simulator and cause the debugger not to attach. This is a known limitation. https://github.com/phonegap/ios-sim and https://blogs.msdn.microsoft.com/visualstudio/2014/11/13/tools-for-apache-cordova-update-ios-debugging-windows-8-1-support/ (see comments).
If you should feel the need to install/uninstall brew it is very easy to do. Just run the install script and if already installed it will give you instructions on how to uninstall. http://brew.sh/ and https://github.com/Homebrew/homebrew/blob/master/share/doc/homebrew/Troubleshooting.md#troubleshooting. To uninstall or reinstall a NPM package is equally easy and Google is your friend.
Read and re-read both of these links for setting up a Mac: https://taco.visualstudio.com/en-us/docs/ios-guide/ and https://taco.visualstudio.com/en-us/docs/build_ios_cloud/. Getting the RemoteBuild.config right is crucial for getting secure connections to work -- especially if you want to access your Mac Mini at home from across the internet.
If you are remoting to a Mac I highly recommend iRAPP or some other VNC alternative. My experience has been that VNC is painfully slow and having a bad connection when you're troubleshooting issues just leads to more aggravation. http://www.coderebel.com/products/irapp/
As mentioned above, the MacInCloud guys were great when I asked for support, but if you do need root access for more than six months the cost of a Mac Mini is less than a Dedicated server plan.
Cheers
Since it is the call to /cordova/[...]/debug that is failing it looks like you might not have ios_webkit_debug_proxy installed. You could try making sure that homebrew is installed (from http://brew.sh) and running brew install ios-webkit-debug-proxy. Afterwards you should be able to run ios_webkit_debug_proxy without an error.
If that runs successfully then you should be able to quit out of ios_webkit_debug_proxy and debugging should work via remotebuild.

Why is iOS Simulator not running?

When I try to run my program, iOS Simulator goes black and displays this error:
Unable to boot the iOS Simulator.
When I click OK, Xcode shows this error:
Unable to run app in Simulator. An error was encountered while running (Domain = NSMachErrorDomain, Code = -300)
How I can I make it run again?
You probably are running two different instances of the iOS Simulator.
Clean the project. (CMD+SHIFT+K)
Quit Xcode.
Quit all instances of iOS Simulator.
Restart the computer.
Log in.
Make sure no instances of iOS Simulator are running (I had a wrong version set to Open At Login)
Run your project, and let Xcode open the right Simulator.
If you've recently updated XCODE and possibly have more than one installation you may need to specify which XCode is being used via the command line.
sudo xcode-select -s /Applications/Xcode6-Beta4.app/Contents/Developer/
Just Reset Content and Settings worked for me. Also clean the project once and build.

Way to debug Meteor code? [duplicate]

Does anyone know a good method to debug server side code?
I tried enable Node.js debug then use node-inspector but it does not show any of my code.
I end up using console.log but this is very inefficient.
Update: I found the following procedure works on my Linux machine:
When you run Meteor, it will spawn two processes
process1: /usr/lib/meteor/bin/node /usr/lib/meteor/app/meteor/meteor.js
process2: /usr/lib/meteor/bin/node /home/paul/codes/bbtest_code/bbtest02/.meteor/local/build/main.js --keepalive
You need to send kill -s USR1 on process2
Run node-inspector and you can see your server code
On my first try, I modify the last line on meteor startup script in /usr/lib/meteor/bin/meteor to
exec "$DEV_BUNDLE/bin/node" $NODE_DEBUG "$METEOR" "$#"
and run NODE_DEBUG=--debug meteor on command prompt. This only put --debug flag on process1 so I only see meteor files on node-inspector and could not find my code.
Can someone check this on Windows and Mac machine?
In Meteor 0.5.4 this has become a lot easier:
First run the following commands from the terminal:
npm install -g node-inspector
node-inspector &
export NODE_OPTIONS='--debug-brk'
meteor
And then open http://localhost:8080 in your browser to view the node-inspector console.
Update
Since Meteor 1.0 you can just type
meteor debug
which is essentially a shortcut for the above commands, and then launch node inspector in your browser as mentioned.
Update
In Meteor 1.0.2 a console or shell has been added. It may come in handy to output variables and run commands on the server:
meteor shell
Meteor apps are Node.js apps. When running a Meteor app with the meteor [run] command, you can configure the NODE_OPTIONS environment variable to start node in debug mode.
Examples of NODE_OPTIONS environment variable values:
--debug
--debug=47977 - specify a port
--debug-brk - break on the first statement
--debug-brk=5858 - specify a port and break on the first statement
If you export NODE_OPTIONS=--debug, all meteor command run from the same shell will inherit the environment variable. Alternatively, you can enable debugging just for one run, with NODE_OPTIONS="--debug=47977" meteor.
To debug, run node-inspector in a different shell, then go to http://localhost:8080/debug?port=<the port you specified in NODE_OPTIONS>, regardless of what node-inspector tells you to run.
To start node.js in debug mode, I did it this way:
open /usr/lib/meteor/app/meteor/run.js
before
nodeOptions.push(path.join(options.bundlePath, 'main.js'));
add
nodeOptions.push('--debug');
Here are additional practical steps for your to attach debugger eclipse:
use '--debug-brk' instead of '--debug' here, because it's easier for me to attach node.js using eclipse as debugger.
add 'debugger;' in the code where you want to debug.(I prefer this way personally)
run meteor in console
attach to node.js in eclipse(V8 tools, attach to localhost:5858)
run, wait for debugger to be hit
when you start meteor in your meteor app folder, you'll see that "debugger listening on port 5858" in console.
On Meteor 1.0.3.1 (update to Sergey.Simonchik answer)
Start your server with meteor run --debug-port=<port-number>
Point browser to http://localhost:6222/debug?port=<port-number>
Where <port-number> is a port you specify.
In your code add a debugger; where you want to set your break point.
Depending on where debugger; is invoked, it will either break on your client or server browser window with inspector opened.
I like to set breakpoints via a GUI. This way I don't have to remember to remove any debugging code from my app.
This is how I managed to do it server side for my local meteor app:
meteor debug
start your app this way.
Open Chrome to the address it gives you. You MAY need to install https://github.com/node-inspector/node-inspector (it might come bundled with Meteor now? not sure)
You'll see some weird internal meteor code (not the app code you wrote). Press play to run the code. This code simply starts up your server to listen for connections.
Only after you press play you'll see a new directory in your debugger folder structure called "app". In there are your meteor project files. Set a breakpoint in there one the line you want.
Open the local address of your app. This will run your server side code and you you should be able to hit your breakpoint!
Note: you have to reopen the inspector and go through this process again each time your app restarts!
As of Meteor 1.0.2 probably the best way for server-side debugging is directly via the new built-in shell: with running server run meteor shell. More info here: https://www.meteor.com/blog/2014/12/19/meteor-102-meteor-shell
I am not sure why it was not working for you.
I am able to use it by following steps on console (Mac).
$ ps
$ kill -s USR1 *meteor_node_process_id*
$ node-inspector &
Above steps are mentioned on https://github.com/dannycoates/node-inspector. It is for attaching node-inspector to running node process.
I wrote a small meteor package called meteor-inspector which simplifies the use of node-inspector to debug meteor apps. It internally manages the lifecycle of node-inspector and hence, the user does not need to restart the debugger manually after some files have changed.
For more details and concrete usage instructions take a look at https://github.com/broth-eu/meteor-inspector.
for meteor 1.3.5.2, run
meteor debug --debug-port 5858+n
n is a non-zero number, this will cause node-inspector use 8080+n as web port.
WebStorm, the powerful IDE free for open source developers, makes it much easier to debug server-side.
I've tested it on Windows, and the configuration was painless - see my answer.
A inspector that solve my issues is meteor server console. Here is the process I followed to install it:
In your project folder, add the smart package server-eval:
mrt add server-eval
For Meteor 1.0:
meteor add gandev:server-eval
Restart meteor.
Download crx Chrome extension file from here.
Open extensions page in Chrome and drag crx file to extensions page.
Restart Chrome.
Check the web inspector out to eval server side code:
In comparison with node-inspector, I have a clearer output.
If you prefer to use nodeJS' official debugger you can call NODE_OPTIONS='--debug' meteor and then (on a different shell) node debug localhost:5858.

Samples don't work in Google NaCl rev 18

I'm trying to use the latest Google NaCl SDK. Following the instructions at https://developers.google.com/native-client/pepper18/devguide/tutorial
I downloaded the naclsdk tool from their site, ran update, and got a pepper_18 folder.
I set NACL_SDK_ROOT to the pepper_18 folder, went in to 'examples' and ran make. Everything seemed to compile just fine.
I started Chrome, looked in about: flags and about: plugins, and verified that NaCl is enabled. I installed the SDK Examples app (from: https://developers.google.com/native-client/pepper18/sdk/examples) and that works just fine.
Then I tried to run my locally built and hosted examples, going to http://localhost: 5301. The HTML loads fine but the NaCl content does not load. In the hello world examples, it says "Status: LOADING..." forever.
I double checked the HTTP server logs and I don't see any errors there. Is there another place I should be looking for logged errors?
Check for version mismatch
In Chrome navigate to about:version and check that the major version of Chrome is at least that of the Pepper version you used to build your examples.
Check the JavaScript console in Chrome for any errors
You can find it by clicking the wrench icon in the upper right-hand corner in Chrome and selecting Tools -> JavaScript Console.
Inspect the NaCl module for further information
In the JavaScript console, you can also inspect the embed element of the NaCl module. E.g., if the embed tag has id="nacl_module" you can inspect it by typing
theModule = document.getElementById('nacl_module');
theModule.lastError;
Check Chrome's output to stdout/stderr
On Mac or Linux start Chrome from the terminal and look at the output on the console. E.g., on the Mac, you'd typically go
/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --enable-nacl
On Windows, Chrome does not write to the terminal if started from a command prompt. For this reason you need to redirect stdout/stderr from Chrome by setting the environment variables NACLLOG, NACL_EXE_STDOUT, and NACL_EXE_STDERR. Point them to different files, e.g.,
NACLLOG = c:\my_project\nacl.log
NACL_EXE_STDOUT = c:\my_project\nacl_stdout.log
NACL_EXE_STDERR = c:\my_project\nacl_stderr.log
Then (re-)start Chrome (making sure these environment variables are in effect).
Connect a debugger
Instructions on using the debugging support (currently only 64-bit Windows and 64-bit Linux) are available at https://developers.google.com/native-client/pepper18/beta-docs/debugging.
Restarting Chrome means closing all windows
When developing for Native Client one often restarts Chrome. It is important to close all Chrome windows; otherwise it hasn't actually restarted.
I muddled through a few issues which I will document in case they help others:
Neglected to 'make' the examples (got a clue to make them from the asker's description).
Chrome would not let me run non-store chrome apps. Went to chrome://flags and enabled Native Client and Native Client GDB-based debugging.
The JavaScript console said the demo's nmf file under .../debug/ was missing. I changed the make config to build Debug instead of Release based on this.
Chrome console complained NativeClient: NaCl module load failed: ServiceRuntime: failed to start; NaCl's GDB debug stub requires --no-sandbox flag on Windows. See crbug…. Tried running Chrome from cmd with --no-sandbox. This results in an alert You are using an unsupported command-line flag: --nosandbox. Stability and security will suffer. The aforementioned error went away, but the examples still would not run - no UI.
Went back to chrome://flags and disabled Native Client GDB-based debugging.
Then most of the examples worked. The Google Drive demo complains Error: must be run as a packged app.
have you confirmed that you've run httpd.py from the examples folder? This script creates the localhost:5103 server that the apps can be ran from.
Also, what OS are you using?
~Main

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