def find_project(testrun_url):
    """
    Find a project name from this Polarion testrun URL.

    :param testrun_url: Polarion test run URL
    :returns: project name eg "CEPH" or "ContainerNativeStorage"
    """
    url_suffix = testrun_url[59:]
    index = url_suffix.index('/')
    return url_suffix[:index]