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Class-based coverage test runner

Author:
brutasse
Posted:
June 4, 2010
Language:
Python
Version:
1.2
Tags:
test runner coverage
Score:
1 (after 1 ratings)

A coverage test runner that uses the class-based runner introduced with Django 1.2.

Put it in your python path and add to your settings.py:

TEST_RUNNER = 'path_to.CoverageRunner'

COVERAGE_MODULES = [
    'blog.views',
    'projects.views',
    'middleware',
]

Compatible with Django 1.2 and higher. You also need Ned Batchelder's coverage.py module (pip install coverage).

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# -*- coding: utf-8 -*-
from django.conf import settings
from django.test.simple import DjangoTestSuiteRunner

import coverage


class CoverageRunner(DjangoTestSuiteRunner):

    def run_tests(self, *args, **kwargs):
        run_with_coverage = hasattr(settings, 'COVERAGE_MODULES')

        if run_with_coverage:
            coverage.use_cache(0)
            coverage.start()

        result = super(CoverageRunner, self).run_tests(*args, **kwargs)

        if run_with_coverage:
            coverage.stop()
            print ''
            print '----------------------------------------------------------------------'
            print ' Unit Test Code Coverage Results'
            print '----------------------------------------------------------------------'
            coverage_modules = []
            for module in settings.COVERAGE_MODULES:
                coverage_modules.append(__import__(module, globals(),
                                                   locals(), ['']))
            coverage.report(coverage_modules, show_missing=1)
            print '----------------------------------------------------------------------'

        return result

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