customizing django testrunner

testrunner.py

# Make our own testrunner that by default only tests our own apps

from django.conf import settings
from django.test.simple import DjangoTestSuiteRunner

class CustomTestRunner(DjangoTestSuiteRunner):
    def build_suite(self, test_labels, *args, **kwargs):
        return super(CustomTestRunner, self).build_suite(test_labels or settings.PROJECT_APPS, *args, **kwargs)