KEYCLOAK-4224 Allow hiding identity providers on login page

testsuite/integration/src/test/java/org/keycloak/testsuite/broker/IdentityProviderHintTest.java

@@ -87,6 +87,13 @@ public class IdentityProviderHintTest {
         assertTrue(this.driver.getCurrentUrl().startsWith("http://localhost:8081/test-app"));
         assertTrue(this.driver.getPageSource().contains("idToken"));
     }
+    
+    @Test
+    public void testSuccessfulRedirectToProviderHiddenOnLoginPage() {
+        this.driver.navigate().to("http://localhost:8081/test-app?kc_idp_hint=kc-oidc-idp-hidden");
+
+        assertTrue(this.driver.getCurrentUrl().startsWith("http://localhost:8082/auth/"));
+    }
 
     @Test
     public void testInvalidIdentityProviderHint() {

testsuite/integration/src/test/java/org/keycloak/testsuite/pages/LoginPage.java

@@ -143,13 +143,13 @@ public class LoginPage extends AbstractPage {
         registerLink.click();
     }
 
-    public void clickSocial(String providerId) {
-        WebElement socialButton = findSocialButton(providerId);
+    public void clickSocial(String alias) {
+        WebElement socialButton = findSocialButton(alias);
         socialButton.click();
     }
 
-    public WebElement findSocialButton(String providerId) {
-        String id = "zocial-" + providerId;
+    public WebElement findSocialButton(String alias) {
+        String id = "zocial-" + alias;
         return this.driver.findElement(By.id(id));
     }
 

testsuite/integration/src/test/resources/broker-test/test-realm-with-broker.json

@@ -205,6 +205,24 @@
                 "defaultScope": "email profile",
                 "backchannelSupported": "true"
             }
+        },
+        {
+            "alias" : "kc-oidc-idp-hidden",
+            "providerId" : "keycloak-oidc",
+            "enabled": true,
+            "storeToken" : true,
+            "addReadTokenRoleOnCreate": true,
+            "config": {
+                "clientId": "broker-app",
+                "clientSecret": "secret",
+                "authorizationUrl": "http://localhost:8082/auth/realms/realm-with-oidc-idp-hidden/protocol/openid-connect/auth",
+                "tokenUrl": "http://localhost:8082/auth/realms/realm-with-oidc-idp-hidden/protocol/openid-connect/token",
+                "userInfoUrl": "http://localhost:8082/auth/realms/realm-with-oidc-idp-hidden/protocol/openid-connect/userinfo",
+                "logoutUrl": "http://localhost:8082/auth/realms/realm-with-oidc-idp-hidden/protocol/openid-connect/logout",
+                "defaultScope": "email profile",
+                "backchannelSupported": "true",
+                "hideOnLoginPage": true
+            }
         }
     ],
     "identityProviderMappers": [