How to use the electrumx.server.env.Env function in electrumX

async def run_test(db_dir):
    environ.clear()
    environ['DB_DIRECTORY'] = db_dir
    environ['DAEMON_URL'] = ''
    environ['COIN'] = 'BitcoinSV'
    db = DB(Env())
    await db.open_for_serving()
    history = db.history

    # Test abstract compaction
    check_hashX_compaction(history)
    # Now test in with random data
    histories = create_histories(history)
    check_written(history, histories)
    compact_history(history)
    check_written(history, histories)

def assert_integer(env_var, attr, default=''):
    setup_base_env()
    if default != '':
        e = Env()
        assert getattr(e, attr) == default
    value = random.randrange(5, 2000)
    os.environ[env_var] = str(value) + '.1'
    with pytest.raises(Env.Error):
        Env()
    os.environ[env_var] = str(value)
    e = Env()
    assert getattr(e, attr) == value

def test_REPORT_SERVICES_private():
    setup_base_env()
    os.environ['REPORT_SERVICES'] = 'tcp://192.168.0.1:1234'
    with pytest.raises(ServiceError) as err:
        Env()
    assert 'bad IP address' in str(err.value)
    # Accept it not PEER_ANNOUNCE
    os.environ['PEER_ANNOUNCE'] = ''
    Env()

def test_PEER_DISCOVERY():
    e = Env()
    assert e.peer_discovery == Env.PD_ON
    os.environ['PEER_DISCOVERY'] = ' '
    e = Env()
    assert e.peer_discovery == Env.PD_OFF
    os.environ['PEER_DISCOVERY'] = 'ON'
    e = Env()
    assert e.peer_discovery == Env.PD_ON
    os.environ['PEER_DISCOVERY'] = 'self'
    e = Env()
    assert e.peer_discovery == Env.PD_SELF

def test_DAEMON_URL():
    assert_required('DAEMON_URL')
    setup_base_env()
    e = Env()
    assert e.daemon_url == BASE_DAEMON_URL

def test_bad_SERVICES():
    setup_base_env()
    os.environ['SERVICES'] = 'tcp:foo.bar:1234'
    with pytest.raises(ServiceError) as err:
         Env()
    assert 'invalid service string' in str(err.value)
    os.environ['SERVICES'] = 'xxx://foo.com:50001'
    with pytest.raises(ServiceError) as err:
        Env()
    assert 'unknown protocol' in str(err.value)

def test_ban_versions():
    e = Env()
    assert e.drop_client is None
    ban_re = r'1\.[0-2]\.\d+?[_\w]*'
    os.environ['DROP_CLIENT'] = ban_re
    e = Env()
    assert e.drop_client == re.compile(ban_re)
    assert e.drop_client.match("1.2.3_buggy_client")
    assert e.drop_client.match("1.3.0_good_client") is None

def test_BANNER_FILE():
    e = Env()
    assert e.banner_file is None
    assert e.tor_banner_file is None
    os.environ['BANNER_FILE'] = 'banner_file'
    e = Env()
    assert e.banner_file == 'banner_file'
    assert e.tor_banner_file == 'banner_file'
    os.environ['TOR_BANNER_FILE'] = 'tor_banner_file'
    e = Env()
    assert e.banner_file == 'banner_file'
    assert e.tor_banner_file == 'tor_banner_file'

def test_SERVICES():
    setup_base_env()
    e = Env()
    assert e.services == []
    # This has a blank entry between commas
    os.environ['SERVICES'] = 'tcp://foo.bar:1234,,ws://1.2.3.4:567,rpc://[::1]:700'
    e = Env()
    assert e.services == [
        Service('tcp', NetAddress('foo.bar', 1234)),
        Service('ws', NetAddress('1.2.3.4', 567)),
        Service('rpc', NetAddress('::1', 700)),
    ]

def test_REPORT_SERVICES():
    setup_base_env()
    e = Env()
    assert e.report_services == []
    # This has a blank entry between commas
    os.environ['REPORT_SERVICES'] = 'tcp://foo.bar:1234,,ws://1.2.3.4:567'
    e = Env()
    assert e.report_services == [
        Service('tcp', NetAddress('foo.bar', 1234)),
        Service('ws', NetAddress('1.2.3.4', 567)),
    ]