Verify the response attributes of 'update-aggregate' API

This patch verifies the response attributes of 'update-aggregate'.
The response body of v2 and v3 API has the same format:
{
    "aggregate": {
        "availability_zone": "nova2",
        "created_at": "2013-08-18T12:17:56.259751",
        "deleted": false,
        "deleted_at": null,
        "hosts": [],
        "id": 1,
        "metadata": {
            "availability_zone": "nova2"
        },
        "name": "newname",
        "updated_at": "2013-08-18T12:17:56.286720"
    }
}
This patch also fixes a typo bug of the schema.

Partially implements blueprint nova-api-attribute-test

Change-Id: I89547d8069aae9d2ad0b4cd081843865f42bc4e7
3 files changed