testing.py 文件源码

def run_tests_if_main(show_coverage=False):
    """ Run tests in a given file if it is run as a script

    Coverage is reported for running this single test. Set show_coverage to
    launch the report in the web browser.
    """
    local_vars = inspect.currentframe().f_back.f_locals
    if not local_vars.get('__name__', '') == '__main__':
        return
    # we are in a "__main__"
    os.chdir(ROOT_DIR)
    fname = str(local_vars['__file__'])
    _clear_imageio()
    _enable_faulthandler()
    pytest.main('-v -x --color=yes --cov imageio '
                '--cov-config .coveragerc --cov-report html %s' % repr(fname))
    if show_coverage:
        import webbrowser
        fname = os.path.join(ROOT_DIR, 'htmlcov', 'index.html')
        webbrowser.open_new_tab(fname)