@Test
  public void changeClientIdTest() throws Exception {
    keycloakRule.update(
        new KeycloakRule.KeycloakSetup() {

          @Override
          public void config(
              RealmManager manager, RealmModel adminstrationRealm, RealmModel appRealm) {
            ClientModel app = appRealm.getClientByClientId("service-account-cl");
            app.setClientId("updated-client");
          }
        });

    oauth.clientId("updated-client");

    OAuthClient.AccessTokenResponse response =
        oauth.doClientCredentialsGrantAccessTokenRequest("secret1");

    assertEquals(200, response.getStatusCode());

    AccessToken accessToken = oauth.verifyToken(response.getAccessToken());
    RefreshToken refreshToken = oauth.verifyRefreshToken(response.getRefreshToken());
    Assert.assertEquals(
        "updated-client", accessToken.getOtherClaims().get(ServiceAccountConstants.CLIENT_ID));

    // Username still same. Client ID changed
    events
        .expectClientLogin()
        .client("updated-client")
        .user(userId)
        .session(accessToken.getSessionState())
        .detail(Details.TOKEN_ID, accessToken.getId())
        .detail(Details.REFRESH_TOKEN_ID, refreshToken.getId())
        .detail(
            Details.USERNAME,
            ServiceAccountConstants.SERVICE_ACCOUNT_USER_PREFIX + "service-account-cl")
        .assertEvent();

    // Revert change
    keycloakRule.update(
        new KeycloakRule.KeycloakSetup() {

          @Override
          public void config(
              RealmManager manager, RealmModel adminstrationRealm, RealmModel appRealm) {
            ClientModel app = appRealm.getClientByClientId("updated-client");
            app.setClientId("service-account-cl");
          }
        });
  }
  @Test
  public void clientCredentialsAuthSuccess() throws Exception {
    oauth.clientId("service-account-cl");

    OAuthClient.AccessTokenResponse response =
        oauth.doClientCredentialsGrantAccessTokenRequest("secret1");

    assertEquals(200, response.getStatusCode());

    AccessToken accessToken = oauth.verifyToken(response.getAccessToken());
    RefreshToken refreshToken = oauth.verifyRefreshToken(response.getRefreshToken());

    events
        .expectClientLogin()
        .client("service-account-cl")
        .user(userId)
        .session(accessToken.getSessionState())
        .detail(Details.TOKEN_ID, accessToken.getId())
        .detail(Details.REFRESH_TOKEN_ID, refreshToken.getId())
        .detail(
            Details.USERNAME,
            ServiceAccountConstants.SERVICE_ACCOUNT_USER_PREFIX + "service-account-cl")
        .assertEvent();

    assertEquals(accessToken.getSessionState(), refreshToken.getSessionState());
    System.out.println("Access token other claims: " + accessToken.getOtherClaims());
    Assert.assertEquals(
        "service-account-cl", accessToken.getOtherClaims().get(ServiceAccountConstants.CLIENT_ID));
    Assert.assertTrue(
        accessToken.getOtherClaims().containsKey(ServiceAccountConstants.CLIENT_ADDRESS));
    Assert.assertTrue(
        accessToken.getOtherClaims().containsKey(ServiceAccountConstants.CLIENT_HOST));

    OAuthClient.AccessTokenResponse refreshedResponse =
        oauth.doRefreshTokenRequest(response.getRefreshToken(), "secret1");

    AccessToken refreshedAccessToken = oauth.verifyToken(refreshedResponse.getAccessToken());
    RefreshToken refreshedRefreshToken =
        oauth.verifyRefreshToken(refreshedResponse.getRefreshToken());

    assertEquals(accessToken.getSessionState(), refreshedAccessToken.getSessionState());
    assertEquals(accessToken.getSessionState(), refreshedRefreshToken.getSessionState());

    events
        .expectRefresh(refreshToken.getId(), refreshToken.getSessionState())
        .user(userId)
        .client("service-account-cl")
        .assertEvent();
  }
  @Test
  public void clientCredentialsLogout() throws Exception {
    oauth.clientId("service-account-cl");

    OAuthClient.AccessTokenResponse response =
        oauth.doClientCredentialsGrantAccessTokenRequest("secret1");

    assertEquals(200, response.getStatusCode());

    AccessToken accessToken = oauth.verifyToken(response.getAccessToken());
    RefreshToken refreshToken = oauth.verifyRefreshToken(response.getRefreshToken());

    events
        .expectClientLogin()
        .client("service-account-cl")
        .user(userId)
        .session(accessToken.getSessionState())
        .detail(Details.TOKEN_ID, accessToken.getId())
        .detail(Details.REFRESH_TOKEN_ID, refreshToken.getId())
        .detail(
            Details.USERNAME,
            ServiceAccountConstants.SERVICE_ACCOUNT_USER_PREFIX + "service-account-cl")
        .detail(Details.CLIENT_AUTH_METHOD, ClientIdAndSecretAuthenticator.PROVIDER_ID)
        .assertEvent();

    HttpResponse logoutResponse = oauth.doLogout(response.getRefreshToken(), "secret1");
    assertEquals(204, logoutResponse.getStatusLine().getStatusCode());
    events
        .expectLogout(accessToken.getSessionState())
        .client("service-account-cl")
        .user(userId)
        .removeDetail(Details.REDIRECT_URI)
        .assertEvent();

    response = oauth.doRefreshTokenRequest(response.getRefreshToken(), "secret1");
    assertEquals(400, response.getStatusCode());
    assertEquals("invalid_grant", response.getError());

    events
        .expectRefresh(refreshToken.getId(), refreshToken.getSessionState())
        .client("service-account-cl")
        .user(userId)
        .removeDetail(Details.TOKEN_ID)
        .removeDetail(Details.UPDATED_REFRESH_TOKEN_ID)
        .error(Errors.INVALID_TOKEN)
        .assertEvent();
  }
  @Test
  public void clientCredentialsInvalidClientCredentials() throws Exception {
    oauth.clientId("service-account-cl");

    OAuthClient.AccessTokenResponse response =
        oauth.doClientCredentialsGrantAccessTokenRequest("secret2");

    assertEquals(400, response.getStatusCode());

    assertEquals("unauthorized_client", response.getError());

    events
        .expectClientLogin()
        .client("service-account-cl")
        .session((String) null)
        .clearDetails()
        .error(Errors.INVALID_CLIENT_CREDENTIALS)
        .user((String) null)
        .assertEvent();
  }
  @Test
  public void clientCredentialsDisabledServiceAccount() throws Exception {
    oauth.clientId("service-account-disabled");

    OAuthClient.AccessTokenResponse response =
        oauth.doClientCredentialsGrantAccessTokenRequest("secret1");

    assertEquals(401, response.getStatusCode());

    assertEquals("unauthorized_client", response.getError());

    events
        .expectClientLogin()
        .client("service-account-disabled")
        .user((String) null)
        .session((String) null)
        .removeDetail(Details.USERNAME)
        .removeDetail(Details.RESPONSE_TYPE)
        .error(Errors.INVALID_CLIENT)
        .assertEvent();
  }