How to use list_downloaded_images method in avocado

Best Python code snippet using avocado_python

vmimage.py

Source:vmimage.py

...5from avocado.core.output import LOG_UI6from avocado.core.plugin_interfaces import CLICmd7from avocado.core.settings import settings8from avocado.utils import astring, vmimage9def list_downloaded_images():10    """11    List the available Image inside avocado cache12    :return: list with image's parameters13    :rtype: list of dicts14    """15    images = []16    for cache_dir in data_dir.get_cache_dirs():17        for root, _, files in os.walk(cache_dir):18            if files:19                metadata_files = [pos_json for pos_json in files20                                  if pos_json.endswith('_metadata.json')]21                files = list(set(files) - set(metadata_files))22                for metadata_file in metadata_files:23                    with open(os.path.join(root, metadata_file), 'r') as data:24                        metadata = json.loads(data.read())25                    if isinstance(metadata, dict):26                        if metadata.get("type", None) == "vmimage":27                            provider = None28                            for p in vmimage.IMAGE_PROVIDERS:29                                if p.name == metadata["name"]:30                                    provider = p(metadata["version"],31                                                 metadata["build"],32                                                 metadata["arch"])33                                    break34                            if provider is not None:35                                for image in files:36                                    if re.match(provider.file_name, image):37                                        data = {"name": provider.name,38                                                "version": provider.version,39                                                "arch": provider.arch,40                                                "file": os.path.join(root, image)}41                                        images.append(data)42                                        break43    return images44def download_image(distro, version=None, arch=None):45    """46    Downloads the vmimage to the cache directory if doesn't already exist47    :param distro: Name of image distribution48    :type distro: str49    :param version: Version of image50    :type version: str51    :param arch: Architecture of image52    :type arch: str53    :raise AttributeError: When image can't be downloaded54    :return: Information about downloaded image55    :rtype: dict56    """57    cache_dir = data_dir.get_cache_dirs()[0]58    image_info = vmimage.get(name=distro, version=version, arch=arch,59                             cache_dir=cache_dir)60    file_path = image_info.base_image61    image = {'name': distro, 'version': image_info.version,62             'arch': image_info.arch, 'file': file_path}63    return image64def display_images_list(images):65    """66    Displays table with information about images67    :param images: list with image's parameters68    :type images: list of dicts69    """70    image_matrix = [[image['name'], image['version'], image['arch'],71                     image['file']] for image in images]72    header = (output.TERM_SUPPORT.header_str('Provider'),73              output.TERM_SUPPORT.header_str('Version'),74              output.TERM_SUPPORT.header_str('Architecture'),75              output.TERM_SUPPORT.header_str('File'))76    for line in astring.iter_tabular_output(image_matrix, header=header,77                                            strip=True):78        LOG_UI.debug(line)79class VMimage(CLICmd):80    """81    Implements the avocado 'vmimage' subcommand82    """83    name = 'vmimage'84    description = 'Provides VM images acquired from official repositories'85    def configure(self, parser):86        parser = super(VMimage, self).configure(parser)87        subcommands = parser.add_subparsers(dest='vmimage_subcommand')88        subcommands.required = True89        subcommands.add_parser('list', help='List of all downloaded images')90        get_parser = subcommands.add_parser('get',91                                            help="Downloads chosen VMimage if "92                                                 "it's not already in the "93                                                 "cache")94        help_msg = 'Name of image distribution'95        settings.register_option(section='vmimage.get',96                                 key='distro',97                                 default=None,98                                 help_msg=help_msg,99                                 key_type=str,100                                 parser=get_parser,101                                 long_arg='--distro',102                                 required=True)103        help_msg = 'Image version'104        settings.register_option(section='vmimage.get',105                                 key='version',106                                 default=None,107                                 help_msg=help_msg,108                                 key_type=str,109                                 parser=get_parser,110                                 long_arg='--distro-version')111        help_msg = 'Image architecture'112        settings.register_option(section='vmimage.get',113                                 key='arch',114                                 default=None,115                                 help_msg=help_msg,116                                 key_type=str,117                                 parser=get_parser,118                                 long_arg='--arch')119    def run(self, config):120        subcommand = config.get("vmimage_subcommand")121        if subcommand == 'list':122            images = list_downloaded_images()123            display_images_list(images)124        elif subcommand == 'get':125            name = config.get('vmimage.get.distro')126            version = config.get('vmimage.get.version')127            arch = config.get('vmimage.get.arch')128            try:129                image = download_image(name, version, arch)130            except AttributeError:131                LOG_UI.debug("The requested image could not be downloaded")132                return exit_codes.AVOCADO_FAIL133            LOG_UI.debug("The image was downloaded:")134            display_images_list([image])...

verify_wget_download.py

Source:verify_wget_download.py

...7    within the working directory.8    """9    data_dir = get_args()10    expected_images = read_archive_table_export(data_dir)11    downloaded_images = list_downloaded_images(data_dir)12    check_for_missing_images(expected_images, downloaded_images)13def get_args():14    """Function to request or gather the required arguments"""15    if len(sys.argv) == 1:16        data_dir = raw_input('Please enter the path to the working data directory: ')17    else:18        data_dir = sys.argv[1]19    return data_dir20def read_archive_table_export(data_dir):21    """Function to read the table of images produced by the archive.22    This table file should be produced using the TXT formatting option.23    """24    table_file = os.path.join(data_dir,'tableExport.txt')25    if not os.path.isfile(table_file):26        print('ERROR: Cannot find the archive-generated list of expected images')27        sys.exit()28    f = open(table_file,'r')29    flines = f.readlines()30    f.close()31    image_list = []32    for line in flines[1:]:33        entries = line.replace('\n','').split(',')34        image_list.append(entries[2])35    print(str(len(image_list))+' image(s) expected from the archive')36    return image_list37def list_downloaded_images(data_dir):38    """Function to build a list of image files that were actually downloaded from those available in the39    working directory, stripping the file extensions since these are not included in the archives data list."""40    file_list = glob.glob(os.path.join(data_dir,'*.fits.fz'))41    if len(file_list) == 0:42        file_list = glob.glob(os.path.join(data_dir,'*.fits'))43    if len(file_list) == 0:44        print('ERROR: No frames downloaded')45        sys.exit()46    image_list = []47    for f in file_list:48        image_list.append(os.path.basename(f).split('.')[0])49    print(str(len(image_list))+' image(s) downloaded')50    return image_list51def check_for_missing_images(expected_images, downloaded_images):...

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.