tests/kubernetes/test_client.py

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import socket
import unittest
from unittest import mock

from kubernetes.client import Configuration
from urllib3.connection import HTTPConnection, HTTPSConnection

from airflow.kubernetes.kube_client import (
    RefreshConfiguration,
    _disable_verify_ssl,
    _enable_tcp_keepalive,
    get_kube_client,
)


class TestClient(unittest.TestCase):
    @mock.patch('airflow.kubernetes.kube_client.config')
    def test_load_cluster_config(self, _):
        client = get_kube_client(in_cluster=True)
        assert not isinstance(client.api_client.configuration, RefreshConfiguration)

    @mock.patch('airflow.kubernetes.kube_client.config')
    @mock.patch('airflow.kubernetes.refresh_config._get_kube_config_loader_for_yaml_file')
    def test_load_file_config(self, _, _2):
        client = get_kube_client(in_cluster=False)
        assert isinstance(client.api_client.configuration, RefreshConfiguration)

    def test_enable_tcp_keepalive(self):
        socket_options = [
            (socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1),
            (socket.IPPROTO_TCP, socket.TCP_KEEPIDLE, 120),
            (socket.IPPROTO_TCP, socket.TCP_KEEPINTVL, 30),
            (socket.IPPROTO_TCP, socket.TCP_KEEPCNT, 6),
        ]
        expected_http_connection_options = HTTPConnection.default_socket_options + socket_options
        expected_https_connection_options = HTTPSConnection.default_socket_options + socket_options

        _enable_tcp_keepalive()

        assert HTTPConnection.default_socket_options == expected_http_connection_options
        assert HTTPSConnection.default_socket_options == expected_https_connection_options

    def test_disable_verify_ssl(self):
        configuration = Configuration()
        self.assertTrue(configuration.verify_ssl)

        _disable_verify_ssl()

        # Support wide range of kube client libraries
        if hasattr(Configuration, 'get_default_copy'):
            configuration = Configuration.get_default_copy()
        else:
            configuration = Configuration()
        self.assertFalse(configuration.verify_ssl)