I have a project where I need to download an audio file in ChromeDriver. The behavior here is different from in regular Chrome, where if I visit the URL, it'll automatically start downloading a file. If I do the same thing manually in ChromeDriver, it will not download the file.
I've tried different configurations of the chrome options/preferences. I've also found options that worked with old versions of chrome, that no longer work anymore.
Here is one of the better resources I found, but it still didn't work, even with their updated blog post
https://dkage.wordpress.com/2012/03/10/mid-air-trick-make-selenium-download-files/
When I attempt to use his solution, my chromedriver abruptly crashes itself in a non chrome-esque way. It just disappears. Not "Something went wrong" page like you'd normally expect. I end up with Java not being able to find my Session, cause it stopped existing.
Has anyone been successful at downloading files through Selenium webdriver in Chrome? If I need to use another browser, I can.
I'm currently using Chrome Canary.
I have the same problem. One solution that might work is to use another library, that is able to operate outside of the browser. I found these stackoverflow post discussiong this issue:
https://sqa.stackexchange.com/questions/2197/how-to-download-a-file-using-seleniums-webdriver
it contains this blogpost wich gives you some sugestions.
https://blog.codecentric.de/en/2010/07/file-downloads-with-selenium-mission-impossible/
Window automation
The first approach smells like “brute force”: when searching the net for a solution to the problem, you easily end up with suggestions, to control the native window with some window automation software like AutoIt. Means you have to prepare AutoIt such, that it waits for any browser download dialog, the point at which Selenium is giving up, takes control of the window, saves the file, and closes the window. After that Selenium can continue as usual.
This might eventually work, but I found it to be techical overkill. And as it turned out, there was a much simpler solution to the problem.
Change the browsers default behaviour
The second possibility is to change the default behaviour of the browser. When clicking on a PDF for example, the browser should not open a dialog and ask the user what to do with the file, but rather save it without comments and questions in a predefined directory. To accomplish that, a file download has to be initiated manually, saved to disk and marked as the default behaviour for these file types from now on.
Well, that could work. You “only” have to assure that all developers, hudson instances, etc. share the same browser profile. And depending on the amount of different file types, that could be some manual work.
Direct download
Taking a step back, why do we want to download the file with Selenium in the first place? Wouldn’t it be much cooler, to download the file without Selenium, but rather with wget? You would have solved the second problem as you go. Seems a good idea, since wget is not only available for Linux but also for Windows.
Problem solved? Not quite: what about files, that are not freely accessible? What, when I first need to create some state with Selenium in order to access a generated file? The solution seems ok for public files, but is not applicable for all situations.
Related
My test need to upload test files in different browsers (I use WebDriver + Java).
For a single file upload, everything works fine. I just send the path
"C:\\testdata\\testfile.txt"
But, syntax changes for multiple upload and different browsers.
(
IE:
"\"" + "C:\\Selenium\\TestData\\Flexy - BigFile1.txt"+"\"" +"\""+"C:\\Selenium\\TestData\\Flexy - BigFile2.txt" + "\""
CHROME:
"C:\\Selenium\\TestData\\Flexy - BigFile1.txt"+"\n"+"C:\\Selenium\\TestData\\Flexy - BigFile2.txt".
Firefox: I'm not able to find a correct syntax.
Any idea?
Is there a common syntax for all browsers?
As far as I know, selenium still does not support multiple file upload (see issue on google code).
There is at least one workaround: apparently create a form that contains as many input fields as you need (see another stackoverflow question). Not the best solution, as it (probably) requires altering your code for selenium to work.
However, as you have found out (thanks for this!), it does seem possible to trigger multiple file uploads in chrome and (although I did not test it) IE as well.
I just confirmed that the chrome "\n" trick works both locally and on Browserstack (I used the default images they provide), which, considering the state of things, is good enough for me.
I hope this helps.
The solution for me (selenium in python) was to just repeat send_keys for each image path before uploading.
Example for two files:
driver.find_element_by_name("filename").send_keys(file_path_1)
driver.find_element_by_name("filename").send_keys(file_path_2)
driver.find_elements_by_xpath("//*[contains(text(), 'Upload')]")[0].send_keys(Keys.RETURN)
I also get chance to upload multiple files via Selenium.
Finally get the solution using AutoIT.
You can pass file path at run time.
ControlFocus(“File Upload”,””,”Edit1″)
ControlSetText(“File Upload”,””,”Edit1″,$CmdLine[1])
ControlClick(“File Upload”,””,”Button1″)
Runtime.getRuntime().exec("C:\\Users\\Mukesh_50\\Desktop\\My blog\\AutoIT\\fileUpload3.exe"+" "+"C:\\Users\\Mukesh_50\\Downloads\\VerifyTitle.java");
If finding any issue then check complete article with video.
I am wondering if anyone could expand on any of these attempts or has any other ideas for catching JS errors using WebDriver that will work in Firefox, Chrome, Internet Explorer, and Safari.
Here is what's been tried so far:
Attempt – Problem:
JSErrorCollector.jar - Works fine, but is a Firefox only solution.
Inject JS into page source – I injected window.onerror code into the page’s source code using WebDriver, but any initial errors are missed because the injection is too late.
BrowserMob – I can intercept the HTTP response and planned to inject the window.onerror code into response body, but the author has not implemented the getBody() method yet, so only headers can be modified, that I am aware of. The body is always null for all responses. (I was on a webpage where the author talked about implementing getBody() but it hasn’t happened yet and I cannot find it again)
Fiddler – JS will inject correctly, but Fiddler is Windows only so Safari won’t work.
Parent/Child windows – I use javascript to open and store a reference to the test page’s window. The window.onerror code is contained in the parent window so it will not miss startup errors in the child window. I cannot get this to work in anything but Firefox and Chome somewhat. I already asked a question about it here.
Selenium RC – I haven’t tried it because all my tests use WebDriver, but I know it has some kind of method like captureNetworkTraffic(), but I don’t think it can be used in WebDriver.
IE error popup – I was going to use the parent/child solution for Firefox/Chrome and then look for the IE error popup. This popup displays when the setting is checked to display it. The popup is a native Window window (I think) so I cannot use selenium to access it.
Read browser console – I could not find a way to do this in all browsers. In Chrome I found a way to save the console log to a file and then read the file. That is as far as I got.
I would like a solution similar to BrowserMob since it seems like it would be a cross browser solution. Are there any other proxies that can be put in the test and intercept the response? It would have been excellent if the getBody() method was implemented. I also like the parent/child solution because it also seems like a simple, cross browser solution, but it is not working for IE (parent/child question again).
Thanks for any help.
I don't know of any way to directly catch Javascript code errors by a test framework. If I were to guess, I would use PhantomJS. Or, maybe something like MITM Proxy would work?
As a sidenote, if you run Selenium2 Grid Hub with a separate Node, you can pass a Java option to the JVM of the node like this that will allow a proxy through Fiddler to work. Fiddler listens (by default) on port 8888. With this method you can watch packets.
:: batch script: Set JAVA_OPTS java options to JVM
SET "JAVA_OPTS=-Dwebdriver.chrome.^
driver=%CHROMEDRIVER%"
IF "%PROXY_TO_FIDDLER%"=="true" SET "JAVA_OPTS=%JAVA_OPTS% -DproxySet=true^
-Dhttp.proxyHost=127.0.0.1 -Dhttp.proxyPort=8888"
I created scripts you can use to start your grid and node here. It seems to me that you could use this method to also talk to BrowserMob proxy on port 8080? I have not tried that.
I would like to know if it's possible to edit a file from within the browser. I know where the file is and I know its format. I would like to some HTML5 and JavaScript but have little luck so don't mind using Flash or Java.
The file I would like to edit is the hosts file. C:\WINDOWS\system32\drivers\etc\hosts on Windows XP.
This is mostly for test run of a new breed of AdBlocking so would like to give my browser and the best chance of working. I have Google Chrome Dev opened as ROOT, running on Windows XP.
Java applet with the correct permissions can access the file probably but how easy is it for the user to setup those permissions is a question I can not answer.
Flash is not going to work 100% as it can not be loaded from the internet and access the hard drive at the same time, without going into details you can trust me on that one as the security model simply does not allow it and there is no actual API inside flash to read the file, one can only forward it through to a server(only upload, no download), nothing more (if running from the internet sandbox).
Javascript - not sure, i kind of feel like it can't for similar reasons as Flash but somebody should probably confirm.
The add-blockers usually work as addons to the browser so you should probably do the same as you should have access but then again, you probably won't need it in that case...
In any case, Flash definitely is not going to work.
Java applets can as long as they are signed ..
Follow these intructions to sign an applet.
P.S these instructions are for a linux setup. You might need to set up environment variables in windows.
Jar signing link
so al long as the users allow the applet to run the applet the applet can modify anything on the file sysem and even open connections to other computers.. and most importantly the applet can be hidden in a corner if that is what you wish
Editing local files from a browser, especially a system file, is something that all browser vendors actively try to PREVENT. This is because all the virus makers are actively trying to edit these too!
If you want an ad blocker editing the hosts file to do it is a terrible idea for a number of reasons. First of all it is only going to work on Windows and your ad blocking won't help for Mac and Linux users. Second it will require permissions escalation on Vista and Windows 7. Third it would have to be reliant on something like ActiveX or Java. Fourth the hosts file would eventually get large. Large hosts file slow down internet browsing because you have to do a full lookup every time.
If you want to block ads, block them at the browser level. I hope I have convinced you that modifying the hosts file for this is a bad idea.
I'm creating an extension for Google Chrome, so any code has to be compatible with Chrome and Chrome only. In this extension, I need the user to select a folder from his local machine. This simple task is becoming quite a problem. The chrome extensions options page will not run applets, so I couldn't really do Java. It's Google Chrome only so an ActiveX object is out of the question as well. I just need a simple way of selecting a folder(not a file) and passing its path to Javascript. Might this be possible in Flash Actionscript? It seems FileReference and FileReferenceList classes in AS only allow you to choose a file, and not a folder. Is there another possibility besides Flash? All the options page files DO rest on the local users machine, so it's not server side.
Thank you for your time.
You can use the webkit-directory attribute on your element to select directories and get the same sort of result as from the "multiple" attribute.
A demo of this: http://www.thecssninja.com/demo/webkitdirectory/
The chromium bug: http://crbug.com/58977
I am working on a demo for a client of what's possible with GWT-Ext for GWT. After browsing for the simplest way to get up and running, I decided on installing the Google Plugin for Eclipse and using the New Web Application Wizard.
First time around, I followed these steps for create the default application:
Selected File > New > Web Application Project from the Eclipse menu.
In the New Web Application Project wizard, entered a name for the project (ExtDemo) and a java package name, com.extdemo.
Unchecked the "Use Google App Engine" check box.
Clicked Finish.
Right clicked it in package explorer and selected Run As > Run Configurations
Put a check in the Automatically Select Unused Port checkbox.
Clicked Run to see the default GWT 1.7 application
This worked fine... it launched GWT's hosted browser and the app worked as supposed to.
(I then continued to import GWT-Ext and add all sorts of widgets building up a nice little demo app)
However at some point when relaunching the app in hosted mode, the hosted browser displays an empty iframe. I even reverted the code to a point where everything was working as supposed to and... same thing, an empty iframe with the surrounding static content.
Now what is really strange is when I go through the process of creating the default application again by following the steps above, the hosted browser launches with an empty iframe again.
However when I click on Compile/Browse, this sometimes allows the app to launch in Firefox.
Anyone have this happen to them?
I have seen some odd behaviors occasionally. Here are some basic suggestions (some are dumb and you might have tried them already):
Use a new workspace
I do not know if GWT plugin somehow caches stuff in the embedded Jetty. If you are re-creating the default app/project, try and use a different name for the project.
Try and re-use a fixed port so that there is no possibility of having multiple servers running.
Update: Found a new "classic" solution:
Delete the cache in IE and possibly Firefox too. Apparently the 'script' tag content tends to be cached by IE. If this works, we can all try tearing our hair out!
Found the updated answer at this link:
I have had the same problem in the past and found it is much more likely to happen if limited CPU is available. For example if my older laptop was running on battery and had stepped down the CPU speed to save power it frequently happened. When running on mains in max performance mode it only happened occasionally. Now I have a much newer and more powerful laptop and the problem has gone away.
Another cause I found was too many breakpoints set up in eclipse and removing breakpoints would often clear the problem.
I've had issues with the browser caching.
Try clearing your browser cache, refresh a few times after a failed load, etc.
You can also try using a different port so the URL is different.
It takes some time to download and run the GWT app, particularly if you are using extra libraries, so wait for a few seconds to see if the app finally loaded.
What makes the app loading to fail randomly is something I don't know yet, but I suspect, as stated by Daniel Vaughan, that is related with a lack of computer resources, CPU, memory, etc.