load testing with selenium- python selenium, find out when a download has completed?

Question

I've used selenium to initiate a download. After the download is complete, certain actions need to be taken, is there any simple method to find out when a download completed? (I am using the FireFox driver)

Answer 1

I came across this problem recently. I was downloading multiple files at once and had to build in a way to timeout if the downloads failed.

 

The code checks the filenames in some download directory every second and exits once they are complete or if it takes longer than 20 seconds to finish. The returned download time was used to check if the downloads were successful or if it timed out.

I use this function for times that .crdownload does not appear as the extension. Essentially this just waits for the correct number of files as well.

 

def download_wait(directory, timeout, nfiles=None):

    """

    Wait for downloads to finish with a specified timeout.

 

    Args

    ----

    directory : str

        The path to the folder where the files will be downloaded.

    timeout : int

      //  How many seconds to wait until timing out.

    nfiles : int, defaults to None

        If provided, also wait for the expected number of files.

 

    """

    seconds = 0

    dl_wait = True

    while dl_wait and seconds < timeout:

        time.sleep(1)

        dl_wait = False

        files = os.listdir(directory)

        if nfiles and len(files) != nfiles:

            dl_wait = True

 

        for fname in files:

            if fname.endswith('.crdownload'):

                dl_wait = True

 

        seconds += 1

    return seconds