def METHOD_NAME(self):
    OidcSession.objects.all().delete()
    client = Client()
    url = reverse("oidc_provider_token_endpoint")
    request = dict(
        client_id = RP_CLIENT_ID,
        client_assertion = self.ca_jws,
        client_assertion_type = "urn:ietf:params:oauth:client-assertion-type:jwt-bearer",
        grant_type="authorization_code",
        code = "code",
        code_verifier = "code_verifier"
    )
    res = client.post(url, request)
    self.assertTrue(res.status_code == 400)