tests/ec2/elb/test_connection.py

# Copyright (c) 2010 Hunter Blanks http://artifex.org/~hblanks/
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"""
Initial, and very limited, unit tests for ELBConnection.
"""

import unittest
from boto.ec2.elb import ELBConnection

class ELBConnectionTest(unittest.TestCase):

    def tearDown(self):
        """ Deletes all load balancers after every test. """
        for lb in ELBConnection().get_all_load_balancers():
            lb.delete()

    def test_build_list_params(self):
        c = ELBConnection()
        params = {}
        c.build_list_params(
            params, ['thing1', 'thing2', 'thing3'], 'ThingName%d')
        expected_params = {
            'ThingName1': 'thing1',
            'ThingName2': 'thing2',
            'ThingName3': 'thing3'
            }
        self.assertEqual(params, expected_params)

    # TODO: for these next tests, consider sleeping until our load
    # balancer comes up, then testing for connectivity to
    # balancer.dns_name, along the lines of the existing EC2 unit tests.

    def test_create_load_balancer(self):
        c = ELBConnection()
        name = 'elb-boto-unit-test'
        availability_zones = ['us-east-1a']
        listeners = [(80, 8000, 'HTTP')]
        balancer = c.create_load_balancer(name, availability_zones, listeners)
        self.assertEqual(balancer.name, name)
        self.assertEqual(balancer.availability_zones, availability_zones)
        self.assertEqual(balancer.listeners, listeners)

        balancers = c.get_all_load_balancers()
        self.assertEqual([lb.name for lb in balancers], [name])

    def test_create_load_balancer_listeners(self):
        c = ELBConnection()
        name = 'elb-boto-unit-test'
        availability_zones = ['us-east-1a']
        listeners = [(80, 8000, 'HTTP')]
        balancer = c.create_load_balancer(name, availability_zones, listeners)

        more_listeners = [(443, 8001, 'HTTP')]
        c.create_load_balancer_listeners(name, more_listeners)
        balancers = c.get_all_load_balancers()
        self.assertEqual([lb.name for lb in balancers], [name])
        self.assertEqual(
            sorted(l.get_tuple() for l in balancers[0].listeners),
            sorted(listeners + more_listeners)
            )

    def test_delete_load_balancer_listeners(self):
        c = ELBConnection()
        name = 'elb-boto-unit-test'
        availability_zones = ['us-east-1a']
        listeners = [(80, 8000, 'HTTP'), (443, 8001, 'HTTP')]
        balancer = c.create_load_balancer(name, availability_zones, listeners)

        balancers = c.get_all_load_balancers()
        self.assertEqual([lb.name for lb in balancers], [name])
        self.assertEqual(
            [l.get_tuple() for l in balancers[0].listeners], listeners)

        c.delete_load_balancer_listeners(name, [443])
        balancers = c.get_all_load_balancers()
        self.assertEqual([lb.name for lb in balancers], [name])
        self.assertEqual(
            [l.get_tuple() for l in balancers[0].listeners],
            listeners[:1]
            )


if __name__ == '__main__':
    unittest.main()