Haketilo

# SPDX-License-Identifier: CC0-1.0

"""

Haketilo unit tests - serving indexeddb resource script files to content scripts

"""

# This file is part of Haketilo

#

# Copyright (C) 2021,2022 Wojtek Kosior <koszko@koszko.org>

#

# This program is free software: you can redistribute it and/or modify

# it under the terms of the CC0 1.0 Universal License as published by

# the Creative Commons Corporation.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# CC0 1.0 Universal License for more details.

import pytest

import copy

from uuid import uuid4

from selenium.webdriver.support.ui import WebDriverWait

from ..script_loader import load_script

from .utils import *

"""

How many test resources we're going to have.

"""

count = 15

sample_files_list = [(f'file_{n}_{i}', f'contents {n} {i}')

                       for n in range(count) for i in range(2)]

sample_files = dict(sample_files_list)

sample_files, sample_files_by_sha256 = make_sample_files(sample_files)

def make_sample_resource_with_deps(n):

    resource = make_sample_resource(with_files=False)

    resource['identifier'] = f'res-{n}'

    resource['dependencies'] = [f'res-{m}'

                                for m in range(max(n - 4, 0), n)]

    resource['scripts'] = [sample_file_ref(f'file_{n}_{i}', sample_files)

                           for i in range(2)]

    return resource

resources = [make_sample_resource_with_deps(n) for n in range(count)]

sample_data = {

    'resources': sample_data_dict(resources),

    'mapping': {},

    'file': {

        'sha256': sample_files_by_sha256

    }

}

def prepare_test_page(initial_indexeddb_data, execute_in_page):

    js = load_script('background/indexeddb_files_server.js',

                     code_to_add='#IMPORT common/broadcast.js')

    execute_in_page(js)

    mock_broadcast(execute_in_page)

    clear_indexeddb(execute_in_page)

    execute_in_page(

        '''

        let registered_listener;

        const new_addListener = cb => registered_listener = cb;

        browser = {runtime: {onMessage: {addListener: new_addListener}}};

        haketilodb.save_items(arguments[0]);

        start();

        ''',

        initial_indexeddb_data)

@pytest.mark.get_page('https://gotmyowndoma.in')

def test_indexeddb_files_server_normal_usage(driver, execute_in_page):

    """

    Test querying resource files (with resource dependency resolution)

    from IndexedDB and serving them in messages to content scripts.

    """

    prepare_test_page(sample_data, execute_in_page)

    # Verify other types of messages are ignored.

    function_returned_value = execute_in_page(

        '''

        returnval(registered_listener(["???"], {},

                  () => location.reload()));

        ''')

    assert function_returned_value == None

    # Verify single resource's files get properly resolved.

    function_returned_value = execute_in_page(

        '''

        var result_cb, contents_prom = new Promise(cb => result_cb = cb);

        returnval(registered_listener(["indexeddb_files", "res-0"],

                                      {}, result_cb));

        ''')

    assert function_returned_value == True

    assert execute_in_page('returnval(contents_prom);') == \

        {'files': [tuple[1] for tuple in sample_files_list[0:2]]}

    # Verify multiple resources' files get properly resolved.

    function_returned_value = execute_in_page(

        '''

        var result_cb, contents_prom = new Promise(cb => result_cb = cb);

        returnval(registered_listener(["indexeddb_files", arguments[0]],

                                      {}, result_cb));

        ''',

        f'res-{count - 1}')

    assert function_returned_value == True

    assert execute_in_page('returnval(contents_prom);') == \

        {'files': [tuple[1] for tuple in sample_files_list]}

@pytest.mark.get_page('https://gotmyowndoma.in')

@pytest.mark.parametrize('error', [

    'missing',

    'circular',

    'db',

    'other'

])

def test_indexeddb_files_server_errors(driver, execute_in_page, error):

    """

    Test reporting of errors when querying resource files (with resource

    dependency resolution) from IndexedDB and serving them in messages to

    content scripts.

    """

    sample_data_copy = copy.deepcopy(sample_data)

    if error == 'missing':

        del sample_data_copy['resources']['res-3']

    elif error == 'circular':

        res3_defs = sample_data_copy['resources']['res-3'].values()

        next(iter(res3_defs))['dependencies'].append('res-8')

    prepare_test_page(sample_data_copy, execute_in_page)

    if error == 'db':

        execute_in_page('haketilodb.idb_get = t => t.onerror("oooops");')

    elif error == 'other':

        execute_in_page('haketilodb.idb_get = () => {throw "oooops"};')

    response = execute_in_page(

        '''

        var result_cb, contents_prom = new Promise(cb => result_cb = cb);

        registered_listener(["indexeddb_files", arguments[0]],

                            {}, result_cb);

        returnval(contents_prom);

        ''',

        f'res-{count - 1}')

    assert response['error']['haketilo_error_type'] == error

    if error == 'missing':

        assert response['error']['id'] == 'res-3'

    elif error == 'circular':

        assert response['error']['id'] in ('res-3', 'res-8')

    elif error not in ('db', 'other'):

        raise Exception('made a typo in test function params?')