Django单元测试案例代码覆盖率统计 - 自定义test runner

最新推荐文章于 2024-05-08 05:15:00 发布

转载最新推荐文章于 2024-05-08 05:15:00 发布 · 93 阅读

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原文链接：http://www.cnblogs.com/coderzh/archive/2009/12/01/djangocoverage.html

文章标签：

#python #测试

本文介绍如何在Django项目中进行单元测试，并详细展示了如何配置和使用自定义的测试运行器来获取代码覆盖率报告。通过具体示例，帮助读者理解如何设置test_settings.py文件及编写testrunner.py以实现自动化测试和覆盖率分析。

如何在Django中编写单元测试案例，以及使用测试用的test_setting和test runner，见：django单元测试历险记

代码很好懂，不做什么解释了。如果需要拷过去，根据自己的需要修改一下，不是什么难事。

test_settings.py

COVERAGE_MODULES = [ ' testapp.models ' , ' testapp.lib ' , ' testapp.common ' ]

TEST_RUNNER = ' testapp.testrunner.test_runner_with_coverage '

testrunner.py

代码

import os, shutil, sys, unittest

# Look for coverage.py in __file__/lib as well as sys.path
sys.path = [os.path.join(os.path.dirname( __file__ ), " lib " )] + sys.path

from coverage import coverage
from inspect import getmembers, ismodule

from django.test.simple import run_tests as django_test_runner

from django.conf import settings

def get_all_coverage_modules(module_path):
     """
    Returns all possible modules to report coverage on, even if they
    aren't loaded.
     """
    app_path = module_path.split( ' . ' )
    app_package = __import__ (module_path, {}, {}, app_path[ - 1 ])
    app_dirpath = app_package. __path__ [ - 1 ]

    mod_list = []
     for root, dirs, files in os.walk(app_dirpath):
        root_path = app_path + root[len(app_dirpath):].split(os.path.sep)[ 1 :]
         for file in files:
             if file.lower().endswith( ' .py ' ):
                mod_name = file[: - 3 ].lower()
                 try :
                    mod = __import__ ( ' . ' .join(root_path + [mod_name]), {}, {},
                        mod_name)
                 except ImportError:
                     pass
                 else :
                    mod_list.append(mod)

     return mod_list

def test_runner_with_coverage(test_labels, verbosity = 1 , interactive = True, extra_tests = []):
     """ Custom test runner.  Follows the django.test.simple.run_tests() interface. """
     # Start code coverage before anything else if necessary
    cov = None
     if hasattr(settings, ' COVERAGE_MODULES ' ):
        cov = coverage()
        cov.use_cache( 1 ) # Do not cache any of the coverage.py stuff
         # cov.exclude('if __name__ == .__main__.:')
        cov.start()

    test_results = django_test_runner(test_labels, verbosity, interactive, extra_tests)

     # Stop code coverage after tests have completed
     if hasattr(settings, ' COVERAGE_MODULES ' ):
        cov.stop()

         # Print code metrics header
         print ''
         print ' ---------------------------------------------------------------------- '
         print ' Unit Test Code Coverage Results '
         print ' ---------------------------------------------------------------------- '

     # Report code coverage metrics
     if hasattr(settings, ' COVERAGE_MODULES ' ):
        coverage_modules = []
         for module in settings.COVERAGE_MODULES:
            coverage_modules.extend(get_all_coverage_modules(module))

        cov.report(coverage_modules, show_missing = 1 )
         # cov.html_report(directory='covhtml')
         # cov.combine()
        cov.save()

         # Print code metrics footer
         print ' ---------------------------------------------------------------------- '

     return test_results

转载于:https://www.cnblogs.com/coderzh/archive/2009/12/01/djangocoverage.html