try {
            conn.connect();
            fail("Should throw IOException when project ID is not set");
        } catch (IOException e) {
            assertTrue(e.getMessage().contains("GCS_PROJECT_ID is blank"));
        }
    }

    /**
     * Test thread-safety of connect() method.
     * Multiple threads should be able to call connect() concurrently without issues.
     */

    assertEvents(
      "plan 1 TCP connected",
      "plan 0 cancel",
      "plan 1 TLS connecting...",
      "plan 1 TLS connect failed",
      "plan 2 TCP connecting...",
      "plan 2 TCP connected",
      "plan 2 TLS connecting...",
      "plan 2 TLS connected",
    )

    taskFaker.advanceUntil(270.ms)
    assertEvents(
      "plan 0 TCP connect canceled",
    )

    @Test
    public void test_Get() {
        Curl.get("https://www.codelibs.org/").execute(response -> {
            final String content = response.getContentAsString();
            logger.info(content);
            assertTrue(content.length() > 0);
        }, e -> {
            logger.log(Level.SEVERE, "error", e);
            fail();
        });
    }

    @Test

///

## OpenID Connect { #openid-connect }

OpenID Connect é outra especificação, baseada em **OAuth2**.

Ela é apenas uma extensão do OAuth2 especificando algumas coisas que são relativamente ambíguas no OAuth2, para tentar torná-lo mais interoperável.

Por exemplo, o login do Google usa OpenID Connect (que por baixo dos panos usa OAuth2).

import okhttp3.internal.tls.OkHostnameVerifier
import okhttp3.internal.toHostHeader

/**
 * A single attempt to connect to a remote server, including these steps:
 *
 *  * [TCP handshake][connectSocket]
 *  * Optional [CONNECT tunnels][connectTunnel]. When using an HTTP proxy to reach an HTTPS server
 *    we must send a `CONNECT` request, and handle authorization challenges from the proxy.
 *  * Optional [TLS handshake][connectTls].
 *

import org.lastaflute.web.login.credential.LoginCredential;

/**
 * OpenID Connect credential implementation.
 */
public class OpenIdConnectCredential implements LoginCredential, FessCredential {

    private final Map<String, Object> attributes;

    /**
     * Creates a new OpenID Connect credential.
     *
     * @param attributes the attributes from OpenID Connect provider
     */

    protected static final String OIC_REDIRECT_URL = "oic.redirect.url";

    /** Configuration key for OpenID Connect token server URL. */
    protected static final String OIC_TOKEN_SERVER_URL = "oic.token.server.url";

    /** Configuration key for OpenID Connect client secret. */
    protected static final String OIC_CLIENT_SECRET = "oic.client.secret";

from starlette.requests import Request
from starlette.status import HTTP_401_UNAUTHORIZED


class OpenIdConnect(SecurityBase):
    """
    OpenID Connect authentication class. An instance of it would be used as a
    dependency.

    **Warning**: this is only a stub to connect the components with OpenAPI in FastAPI,
    but it doesn't implement the full OpenIdConnect scheme, for example, it doesn't use

        dcerpcBinding.setOption("endpoint", endpoint);
        dcerpcBinding.setOption("connect", "80");
        String result = dcerpcBinding.toString();
        assertTrue(result.startsWith(PROTO + ":" + SERVER + "[" + endpoint + ","), "toString should start correctly with endpoint.");
        assertTrue(result.contains("connect=80"), "toString should contain connect option.");
    }

    @Test

///

## OpenID Connect

OpenID Connect — ще одна специфікація, побудована на основі **OAuth2**.

Вона розширює OAuth2, уточнюючи деякі неоднозначності для досягнення кращої сумісності.

Наприклад, вхід через Google використовує OpenID Connect (який базується на OAuth2).

Але вхід через Facebook — ні. Він має власну реалізацію на базі OAuth2.

### OpenID (не "OpenID Connect")