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Test Suite URL Coverage

Author:
jterrace
Posted:
February 24, 2012
Language:
Python
Version:
1.3
Score:
2 (after 2 ratings)

This custom test suite runner will record all of the URLs accessed during your test suite. It will compare it to the list of all URLs you have configured for your site and produce a report of any URLs missed. It requires that all URLs are named (using the name= parameter).

To use is, set the TEST_RUNNER variable in your configuration to this class. You can also define ignored URLs. For example, to filter out the admin URLs, you can use:

IGNORED_COVERAGE_URLS = ['^admin/',
                         '^admin/doc/']
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from django.test.simple import DjangoTestSuiteRunner
from django.conf import settings
from django.core.urlresolvers import resolve, get_resolver

IGNORED_COVERAGE_URLS = getattr(settings, 'IGNORED_COVERAGE_URLS', [])

def get_configured_url_names(urllist=None):
    """Recurses through django url resolvers to get a full
    list of all url names"""
    if urllist is None:
        urllist = get_resolver(None).url_patterns
    unique_names = set()
    for entry in urllist:
        name = getattr(entry, 'name', None)
        if entry.regex.pattern in IGNORED_COVERAGE_URLS:
            continue
        if name is not None:
            unique_names.add(name)
        if hasattr(entry, 'url_patterns'):
            unique_names.update(get_configured_url_names(entry.url_patterns))
    return unique_names

unique_url_names = set()
class UrlMiddlewareLogger(object):
    def process_request(self, request):
        unique_url_names.add(resolve(request.path).url_name)

class CustomTestRunner(DjangoTestSuiteRunner):
    def __init__(self, *args, **kwargs):
        super(CustomTestRunner, self).__init__(*args, **kwargs)

    def run_tests(self, test_labels, **kwargs):
        # setup custom middleware class that records urls accessed
        orig_middleware = getattr(settings, 'MIDDLEWARE_CLASSES', [])
        middleware = tuple(list(orig_middleware) +
                           [__name__ + '.UrlMiddlewareLogger'])
        setattr(settings, 'MIDDLEWARE_CLASSES', middleware)
        
        test_results = super(CustomTestRunner, self).run_tests(test_labels, **kwargs)
        
        # reset middleware back to what it was
        setattr(settings, 'MIDDLEWARE_CLASSES', orig_middleware)
        
        configured_names = get_configured_url_names()
        missed_names = sorted(configured_names.difference(unique_url_names))
        hit_names = configured_names.intersection(unique_url_names)
        print '-----------------------------------------------------'
        print 'Status: %d of %d URLs hit in test suite' % (len(hit_names), len(configured_names))
        print '-----------------------------------------------------'
        if len(missed_names) > 0:
            print 'URL Names in URL Configuration not hit in test suite:'
            print '-----------------------------------------------------'
            for missed_name in missed_names:
                print '  ' + missed_name
        print
        
        return test_results

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