Django CouchDB Test Runner

import unittest
from django.conf import settings
from django.db.models import get_app, get_apps
from django.test.utils import setup_test_environment, teardown_test_environment
from django.test.simple import build_suite
from django.db.backends.creation import TEST_DATABASE_PREFIX
import couchdb


def create_test_couchdb():
    server = couchdb.Server(settings.COUCHDB_HOST)
    test_database_name = TEST_DATABASE_PREFIX + settings.COUCHDB_NAME
    server.create(test_database_name)

def destroy_test_couchdb(old_database_name):
    server = couchdb.Server(settings.COUCHDB_HOST)
    test_database_name = settings.COUCHDB_NAME
    settings.COUCHDB_NAME = old_database_name
    del server[test_database_name]

def run_tests(test_labels, verbosity=1, interactive=True, extra_tests=[]):
    """
    Copied directly from django.test.simple.run_tests with the minor
    addition of a test CouchDB setup and teardown.
    
    See: django.test.simple.run_tests
    """
    setup_test_environment()
    
    settings.DEBUG = False    
    suite = unittest.TestSuite()
    
    if test_labels:
        for label in test_labels:
            if '.' in label:
                suite.addTest(build_test(label))
            else:
                app = get_app(label)
                suite.addTest(build_suite(app))
    else:
        for app in get_apps():
            suite.addTest(build_suite(app))
    
    for test in extra_tests:
        suite.addTest(test)

    old_name = settings.DATABASE_NAME
    from django.db import connection
    connection.creation.create_test_db(verbosity, autoclobber=not interactive)

    # Test CouchDB setup
    old_couch_name = settings.COUCHDB_NAME
    create_test_couchdb()

    result = unittest.TextTestRunner(verbosity=verbosity).run(suite)
    
    # Test CouchDB teardown
    destroy_test_couchdb(old_couch_name)
    
    connection.creation.destroy_test_db(old_name, verbosity)
    
    teardown_test_environment()
    
    return len(result.failures) + len(result.errors)