Function check_environ

webtest/lint.py:313–397

(environ)

def check_environ(environ):
    if type(environ) is not dict:
        raise AssertionError(
            "Environment is not of the right type: %r (environment: %r)"
            % (type(environ), environ)
        )

    for key in ['REQUEST_METHOD', 'SERVER_NAME', 'SERVER_PORT',
                'wsgi.version', 'wsgi.input', 'wsgi.errors',
                'wsgi.multithread', 'wsgi.multiprocess',
                'wsgi.run_once']:
        if key not in environ:
            raise AssertionError("Environment missing required key: %r" % key)

    for key in ['HTTP_CONTENT_TYPE', 'HTTP_CONTENT_LENGTH']:
        if key in environ:
            raise AssertionError(
                "Environment should not have the key: %s "
                "(use %s instead)" % (key, key[5:])
            )

    if 'QUERY_STRING' not in environ:
        warnings.warn(
            'QUERY_STRING is not in the WSGI environment; the cgi '
            'module will use sys.argv when this variable is missing, '
            'so application errors are more likely',
            WSGIWarning)

    for key in environ:
        if '.' in key:
            # Extension, we don't care about its type
            continue
        if type(environ[key]) not in METADATA_TYPE:
            raise AssertionError(
                "Environmental variable %s is not a string: %r (value: %r)"
                % (key, type(environ[key]), environ[key])
            )

    if type(environ['wsgi.version']) is not tuple:
        raise AssertionError(
            "wsgi.version should be a tuple (%r)" % environ['wsgi.version']
        )

    if environ['wsgi.url_scheme'] not in ('http', 'https'):
        raise AssertionError(
            "wsgi.url_scheme unknown: %r" % environ['wsgi.url_scheme']
        )

    check_input(environ['wsgi.input'])
    check_errors(environ['wsgi.errors'])

    # @@: these need filling out:
    if environ['REQUEST_METHOD'] not in valid_methods:
        warnings.warn(
            "Unknown REQUEST_METHOD: %r" % environ['REQUEST_METHOD'],
            WSGIWarning)

    if environ.get('SCRIPT_NAME') and not environ['SCRIPT_NAME'].startswith(SLASH):