Some tests slow when using proxy

[Stuart McLaren]

When developing on a system which uses a http proxy some of the tests run, but require a timeout of about ~60 seconds.
Typically they access 'example.com' and end up in the http store querying for the image size timeout and set it to '0':

    def get_size(self, location):
        """
        Takes a `glance.store.location.Location` object that indicates
        where to find the image file, and returns the size

        :param location `glance.store.location.Location` object, supplied
                        from glance.store.location.get_location_from_uri()
        """
        try:
            return self._query(location, 'HEAD')[2]
        except Exception:
            return 0

Setting 'example.com' to 'localhost' should give the same behaviour but without the extra ~60 seconds to timeout.

[Stuart McLaren (stuart-mclaren)]

The worst offenders:

test_bad_container_format 63.60
test_bad_disk_format 63.75
test_add_image_no_location_no_image_as_body 64.22
test_add_no_name 72.08
test_add_with_location_and_stdin 72.20
test_add_with_location 72.27
test_add_location_without_checksum 72.32
test_add_location_with_checksum 72.60
test_add_list_update_list 73.53
test_defaulted_amazon_format 761.86

Replacing example.com with localhost for these tests improves run times:

test_bad_container_format 0.20
test_bad_disk_format 0.36
test_add_image_no_location_no_image_as_body 0.35
test_add_no_name 7.34
test_add_with_location_and_stdin 9.17
test_add_with_location 9.43
test_add_location_without_checksum 8.96
test_add_location_with_checksum 8.93
test_add_list_update_list 11.66
test_defaulted_amazon_format 0.81

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/9957

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/9957
Committed: http://github.com/openstack/glance/commit/251c5e588a168d4aae406e28d2c8da1e307f4275
Submitter: Jenkins
Branch: master

commit 251c5e588a168d4aae406e28d2c8da1e307f4275
Author: Stuart McLaren <email address hidden>
Date: Wed Jul 18 09:18:55 2012 +0000

    Replace example.com with localhost for some tests

    Fix for LP Bug #1025756.

    When running the unit tests on a system without a
    direct internet connection some tests run slowly.
    Replacing example.com with localhost:0 speeds up
    the relevant tests.

    Change-Id: Iac6fc506b1d36b18ab21bb956ec2d8acc004bba8