Finally, we will use third party library of Apache Commons IO to download a file. First, we will see an example of using Java IO to download a file. Here, we are using BufferedInputStream to download a file. Then, we opened an InputStream from the file using openStream method. Next, in order to be able to download large files we wrapped the input stream into a BufferedInputStream.
Also, we created a FileOutputStream by providing a path on the disk where we want the file to be saved. Next, we use a bucket of byte[] to read bytes from the input stream and writing onto the output stream iteratively.
This example, demonstrates how we can use our own buffer for example bytes so that downloading large files should not consume huge memory on our system. To do that, we have used try-with-resources block for respective streams instantiation. Follow Author. Comments Henzhi Mkali says:.
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Can you say what you have done so far? To automatically download file using Selenium with Java, we have the following options:. Already we have discussed the AutoIT tool. The same tool is used for downloading files in selenium.
Again, download window changes as per Browsers. So users have to consider all scenarios to automate download pop up. Save this code and generate. Again, It is not advisable to use it as it supports only Windows operating system and its external tool. You can run the below Selenium testing script to download files using Selenium with Java through Robot class. Note: AutoIT and Robot class code could change based on the browser-specific profile set as well as where you want to save.
Moreover, most important is cursor focus. If your download pop up is not in focus then mostly your code will not work. By leveraging the browser profile setting, you can download files in Selenium WebDriver without interacting with the download window pop-up.
You need to trick the browser profile. As we did a practical implementation to upload file in Selenium WebDriver. We will now practice downloading files in Selenium WebDriver on both local and cloud-based Selenium Grid.
I will be demonstrating the file downloading using the Browser Profile Setting. Note: Working on a local machine for downloading files is easy to handle but on a remote machine, it works based on the permission you have been provided to access the remote WebDrivers.
Similar to uploading, the only thing we need to tweak in the Selenium Java testing script is going to be the file detector and the hub URL. Below is a screenshot of LambdaTest automation logs which shows that the file is downloaded successfully.
If you have a website where you are allowing users to either download or upload files in Selenium WebDriver then you need to ensure they work seamlessly across all browsers. Working on upload file feature of Selenium is very easy if you have understood the difference between Remote WebDriver and WebDriver Interface.
Although Selenium can help you execute test cases in local infrastructure. It is always recommended to go for a cloud-based Selenium Grid in order to save both time and resources. Similarly, Download file using a third-party tool would end up having a flaky automation test.
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