django - 为什么覆盖率报告会根据我的执行方式而有所不同

Question

我正在编写一个 django 应用程序。我正在尝试 unittest 和 pytest 的覆盖率。根据我运行测试的方式，我会得到不同的覆盖率报告。

相关代码

我在 settings_test.py 中有这个，pytest 的跑步者：

class PytestTestRunner(UnManagedModelTestRunner):
    def __init__(self, verbosity=1, failfast=False, keepdb=False, **kwargs):
        self.verbosity = verbosity
        self.failfast = failfast
        self.keepdb = keepdb
    def run_tests(self, test_labels):
        """Run pytest and return the exitcode.
        It translates some of Django's test command option to pytest's.
        """
        import pytest
        argv = []
        if self.verbosity == 0:
            argv.append('--quiet')
        if self.verbosity == 2:
            argv.append('--verbose')
        if self.verbosity == 3:
            argv.append('-vv')
        if self.failfast:
            argv.append('--exitfirst')
        if self.keepdb:
            argv.append('--reuse-db')
        argv.extend(test_labels)
        return pytest.main(argv)

TEST_RUNNER = "settings_test.UnManagedModelTestRunner"

还有这个脚本来运行测试：

跑步者.py

USAGE = """
USAGE: 
python runner.py         (will run unittest suite)
python runner.py unittest      (will run unittest suite)
python runner.py pytest      (will run pytest suite + coverage)
"""

TEST_RUNNERS_MAP = {
    'pytest': 'testapp.settings_test.PytestTestRunner',               # pytest
    'unittest': 'testapp.settings_test.UnManagedModelTestRunner',     # unittest
}

if __name__ == "__main__":
    os.environ['DJANGO_SETTINGS_MODULE'] = 'testapp.settings_test'
    django.setup()

    # Get argument to decide which test suite to run.
    arguments = sys.argv[1:]
    arg = arguments[0] if 0 < len(arguments) else "unittest"
    runner = TEST_RUNNERS_MAP[arg]

    TestRunner = get_runner(settings, test_runner_class=runner)
    test_runner = TestRunner()
    failures = test_runner.run_tests(["unit_tests"])
    sys.exit(bool(failures))

试运行

$ pytest


Name                                                 Stmts   Miss Branch BrPart  Cover   Missing
------------------------------------------------------------------------------------------------
api/apps.py                                   4      0      0      0   100%
api/models/enum_model_base.py                25     10      2      0    56%   14,28,31
api/models/ingredient.py                     11      0      0      0   100%
api/models/model_base_with_timestamp.py       6      0      0      0   100%
api/routes.py                                 5      0      0      0   100%
api/serializers/ingredients.py                6      6      0      0     0%   1-9
api/urls.py                                   5      5      0      0     0%   1-7
api/views/view_set_base.py                   55     55     10      0     0%   1-123
api/views/ingredients.py                      6      6      0      0     0%   1-9
------------------------------------------------------------------------------------------------
TOTAL                                                  123     82     12      0    30%

FAIL Required test coverage of 100.0% not reached. Total coverage: 30.37%

我认为与下一个唯一的区别是 urls 文件。

$ coverage run runner.py unittest
$ coverage report

Name                                                 Stmts   Miss Branch BrPart  Cover   Missing
------------------------------------------------------------------------------------------------
api/apps.py                                   4      0      0      0   100%
api/models/enum_model_base.py                25     10      2      0    56%   14,28,31
api/models/ingredient.py                     11      0      0      0   100%
api/models/model_base_with_timestamp.py       6      0      0      0   100%
api/routes.py                                 5      0      0      0   100%
api/serializers/ingredients.py                6      6      0      0     0%   1-9
api/urls.py                                   5      0      0      0   100%
api/views/view_set_base.py                   55     55     10      0     0%   1-123
api/views/ingredients.py                      6      6      0      0     0%   1-9

但是，如果我从脚本运行 pytest。其中大部分为 0%

$ python runner.py pytest

Name                                                 Stmts   Miss Branch BrPart  Cover   Missing
------------------------------------------------------------------------------------------------
api/apps.py                                   4      4      0      0     0%   1-6
api/models/enum_model_base.py                25     25      2      0     0%   1-57
api/models/ingredient.py                     11     11      0      0     0%   1-14
api/models/model_base_with_timestamp.py       6      6      0      0     0%   1-13
api/routes.py                                 5      0      0      0   100%
api/serializers/ingredients.py                6      6      0      0     0%   1-9
api/urls.py                                   5      5      0      0     0%   1-7
api/views/view_set_base.py             55     55     10      0     0%   1-123
api/views/ingredients.py                      6      6      0      0     0%   1-9
------------------------------------------------------------------------------------------------
TOTAL                                                  123    118     12      0     4%


FAIL Required test coverage of 100.0% not reached. Total coverage: 3.70%

标签： djangopytestpytest-django