The response will contain the length of the file and it's type. A HEAD request is preferable since it will only retrieve the headers instead of pulling down the entire file. And if the file is behind auth, you will need to pull the session cookie from Selenium's cookie store and pass it into the HTTP library when performing the request.
That, or you can configure the browser you're using to auto-download files to a specific location and then perform checks against the file on disk.
I made my own version of the downloader, by using an Ajax request and returning the bytes. Has the advantage that it uses the browser directly, so authentication and cookies do not need to be dealt with.
It has the disadvantage that you're restricted by same-origin rule, it might need a lot of memory and maybe also fail in older browsers. How to auto save files using custom Firefox profile? This blog post describes a straight forward way of invoking another library to download the file so not through the browser whilst maintaining selenium's session with the site - so it works on password-protected files, etc.
There are many ways to download file in Selenium, one of the easiest way in Firefox using Firefox Profile. First add preferences in profiles and specify the MIME type of file and then you can open Firefox with above preferences. I found below article interesting which cover above scenario: How to Download files in Selenium Webdriver. First, think about - do you really need to download an image? Or You just need to make sure that it exists and it is able to be downloaded?
Here you may find full trusted description how to check that image is available and exists, just by following by image's URL. Main steps are: extract authorization cookies if user session required use them for building new HTTP request send such request with image's URL to check status code if status code is - image exists. Note, that it is not apache-like cookies, you can not use them strictly with apache http client.
But you could build one apache-like based on it. An approach that I took I took recently to this was to capture to response via fiddler. In my case I am making a call directly to the export handler in our application. I have wrapped the selenium bits and intercepted the traffic with fiddler core. I actually just cared about the data in the file not that the browser correctly interpreted the request.
You could also accomplish this using the a click action as well. I am using C and WebDriver for my implementation. If you are using a different language I think there are some other tools as well.
I my opinion the advantage of this is that I can strip away having to try to interact with the file download mechanisms of any of the browsers. If I want to create the file later all of the information the browser would have received is in the response header. A simple but somewhat flimsy solution depending on whether you're expecting a consistent screen size in your target environment ; is to use the java. Robot class as below.. You could also try the ChromeDriver for selenium; as I've noticed chrome doesn't have an OS dialogue for download confirmation.
When you are using selenium web driver with for Firefox profile , the best way to deal with the modal window is by changing the Firefox profile settings to automatically downloading the file to the desired location. The way we have accomplished this is sending keys to the browser window. Agreed its not the best solution but its quick and works.
We did this on IE9 with the selenium web driver for IE and the scenario we wanted to automate was a submit button click that would end up downloading a file on the browser. The way we accomplished this was clicking submit on a thread because submit blocks till the action is taken to either progress or cancel the download on the download bar.
Once on the save button send the Down arrow key which opens up the menu on the save button and then a couple of down arrow keys more followed by Enter opens up the save as dialog.
Here is the code snippet written in C :. The Save dialog opens up. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. File name may be generated dynamically. In such cases we can also check for the file exists with the file extension. We will see all the above cases and verify for the file which is being downloaded.
Here we are defining the preferences to the Firefox browser and we will pass this to the Webdriver. We can set different preferences based on the requirement. In this tutorial there are many other preferences which are used when downloading a file using Firefox Preferences. Below method takes the download directory and the file name, which will check for the file name mention in the directory and will return 'True' if the document is available in the folder else 'false'.
When we are sure of the file name, we can make use of this method to verify. The below method is used to get the document name based on the last action performed in the specified folder. This is done by using java LastModified which returns a long value representing the time the file was last modified.
When ever we click on download, based on the file size and network we need to wait for specific to complete download operation.
If not we may encounter issues as the file is not downloaded. Note: This is compatible with Java 7 version. In our example, as show in step 3, there is a problem writing into C drive. In the following example, we will use WebDriver and wget to download a popular chat software called Yahoo Messenger.
After executing this code, check your D drive and verify that the Yahoo Messenger installer was successfully downloaded there. Skip to content. Report a Bug. Previous Prev. Next Continue. Then, you have to click the Begin Upload button.
By inspecting the elements on the page, you can find out that the button has the id uploadbutton. On the other hand, the file selector has both the name and the id set to uploadname1.
The code will be straightforward. After executing the code, Chrome opens up and accesses the demo site, and the upload occurs successfully:. While uploading a file using Selenium is easy—almost trivial—downloading files can be a little more tricky. The problem is that Selenium has no way of handling the download windows of the many different browsers.
There is one simple workaround, though. With that option switched off, Chrome will never ask where to save each file. Instead, it will always save each file to the default location. This is where programmers, testers, and QA professionals can practice software testing. The page we linked to has a few. Just that. By now, you know the drill.
The first step is instantiating the driver object and accessing the page:. The findElements method returns a list. Since you want the first element, use the get method to grab the first item on that list. Selenium WebDriver is a no-brainer when it comes to testing automation tools. However, Selenium is far away from being a silver bullet. However, the whole ordeal might have struck you as very bare bones. What if, in the process of testing a web application, you wanted to do more?
0コメント