Refactor and improve tests for federated client authentication (#42720)

Closes #42718

Signed-off-by: stianst <stianst@gmail.com>

test-framework/core/src/main/java/org/keycloak/testframework/events/EventAssertion.java

@@ -0,0 +1,60 @@
+package org.keycloak.testframework.events;
+
+import org.hamcrest.MatcherAssert;
+import org.hamcrest.Matchers;
+import org.junit.jupiter.api.Assertions;
+import org.keycloak.events.EventType;
+import org.keycloak.representations.idm.EventRepresentation;
+
+public class EventAssertion {
+
+    private final EventRepresentation event;
+
+    protected EventAssertion(EventRepresentation event) {
+        Assertions.assertNotNull(event, "Event was null");
+        Assertions.assertNotNull(event.getId(), "Event id was null");
+        this.event = event;
+    }
+
+    public static EventAssertion assertSuccess(EventRepresentation event) {
+        Assertions.assertFalse(event.getType().endsWith("_ERROR"), "Expected successful event");
+        return new EventAssertion(event);
+    }
+
+    public static EventAssertion assertError(EventRepresentation event) {
+        Assertions.assertTrue(event.getType().endsWith("_ERROR"), "Expected error event");
+        return new EventAssertion(event);
+    }
+
+    public EventAssertion error(String error) {
+        Assertions.assertEquals(error, event.getError());
+        return this;
+    }
+
+    public EventAssertion type(EventType type) {
+        Assertions.assertEquals(type, EventType.valueOf(event.getType()));
+        return this;
+    }
+
+    public EventAssertion clientId(String clientId) {
+        Assertions.assertEquals(clientId, event.getClientId());
+        return this;
+    }
+
+    public EventAssertion details(String key, String value) {
+        if (value != null) {
+            MatcherAssert.assertThat(event.getDetails(), Matchers.hasEntry(key, value));
+        } else {
+            withoutDetails(key);
+        }
+        return this;
+    }
+
+    public EventAssertion withoutDetails(String... keys) {
+        for (String key : keys) {
+            MatcherAssert.assertThat(event.getDetails(), Matchers.not(Matchers.hasKey(key)));
+        }
+        return this;
+    }
+
+}

test-framework/core/src/main/java/org/keycloak/testframework/realm/ManagedRealm.java

@@ -1,6 +1,8 @@
 package org.keycloak.testframework.realm;
 
+import org.keycloak.admin.client.resource.IdentityProviderResource;
 import org.keycloak.admin.client.resource.RealmResource;
+import org.keycloak.representations.idm.IdentityProviderRepresentation;
 import org.keycloak.representations.idm.RealmRepresentation;
 import org.keycloak.testframework.injection.ManagedTestResource;
 
@@ -56,6 +58,17 @@ public class ManagedRealm extends ManagedTestResource {
         admin().update(configBuilder.build());
     }
 
+    public void updateIdentityProviderWithCleanup(String alias, IdentityProviderUpdate update) {
+        IdentityProviderResource resource = realmResource.identityProviders().get(alias);
+
+        IdentityProviderRepresentation original = resource.toRepresentation();
+        IdentityProviderRepresentation updated = RepresentationUtils.clone(original);
+        update.update(updated);
+        resource.update(updated);
+
+        cleanup().add(r -> r.identityProviders().get(alias).update(original));
+    }
+
     public ManagedRealmCleanup cleanup() {
         if (cleanup == null) {
             cleanup = new ManagedRealmCleanup();
@@ -77,4 +90,10 @@ public class ManagedRealm extends ManagedTestResource {
 
     }
 
+    public interface IdentityProviderUpdate {
+
+        void update(IdentityProviderRepresentation rep);
+
+    }
+
 }