rpuch commented on code in PR #1569:
URL: https://github.com/apache/ignite-3/pull/1569#discussion_r1118607957


##########
modules/rest/src/test/java/org/apache/ignite/internal/rest/auth/DelegatingAuthenticationProviderTest.java:
##########
@@ -0,0 +1,142 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.ignite.internal.rest.auth;
+
+import static org.hamcrest.CoreMatchers.instanceOf;
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.junit.jupiter.api.Assertions.assertAll;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import io.micronaut.http.HttpMethod;
+import io.micronaut.http.simple.SimpleHttpRequest;
+import io.micronaut.security.authentication.AuthenticationException;
+import io.micronaut.security.authentication.UsernamePasswordCredentials;
+import java.util.Collections;
+import org.apache.ignite.internal.rest.configuration.AuthView;
+import org.apache.ignite.internal.rest.configuration.stub.StubAuthView;
+import org.apache.ignite.internal.rest.configuration.stub.StubAuthViewEvent;
+import 
org.apache.ignite.internal.rest.configuration.stub.StubBasicAuthProviderView;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+class DelegatingAuthenticationProviderTest {
+
+    private final SimpleHttpRequest<Object> httpRequest = new 
SimpleHttpRequest<>(HttpMethod.GET, "/", null);
+
+    private DelegatingAuthenticationProvider authenticationProvider;
+
+    @BeforeEach
+    void setUp() {
+        authenticationProvider = new DelegatingAuthenticationProvider();
+    }
+
+
+    @Test
+    public void enableAuth() {
+        TestAuthSubscriber subscriber = new TestAuthSubscriber();
+
+        AuthView enableAuthView = new StubAuthView(true, new 
StubBasicAuthProviderView("admin", "admin"));
+        authenticationProvider.onUpdate(new StubAuthViewEvent(null, 
enableAuthView)).join();
+
+        UsernamePasswordCredentials validCredentials = new 
UsernamePasswordCredentials("admin", "admin");
+        authenticationProvider.authenticate(httpRequest, 
validCredentials).subscribe(subscriber);
+        assertAll(
+                () -> assertNull(subscriber.lastError()),
+                () -> assertTrue(subscriber.lastResponse().isAuthenticated())
+        );
+
+        UsernamePasswordCredentials invalidCredentials = new 
UsernamePasswordCredentials("admin", "password");
+        authenticationProvider.authenticate(httpRequest, 
invalidCredentials).subscribe(subscriber);
+        assertAll(
+                () -> assertThat(subscriber.lastError(), 
is(instanceOf(AuthenticationException.class))),
+                () -> assertNull(subscriber.lastResponse())
+        );
+    }
+
+    @Test
+    public void enableAuthWithEmptyProviders() {
+        TestAuthSubscriber subscriber = new TestAuthSubscriber();
+
+        AuthView enableAuthView = new StubAuthView(true, 
Collections.emptyList());
+        authenticationProvider.onUpdate(new StubAuthViewEvent(null, 
enableAuthView)).join();
+
+        UsernamePasswordCredentials emptyCredentials = new 
UsernamePasswordCredentials();
+        authenticationProvider.authenticate(httpRequest, 
emptyCredentials).subscribe(subscriber);
+        assertAll(
+                () -> assertNull(subscriber.lastError()),
+                () -> assertTrue(subscriber.lastResponse().isAuthenticated())
+        );
+    }
+
+    @Test
+    public void disableAuth() {
+        AuthView enableAuthView = new StubAuthView(true, new 
StubBasicAuthProviderView("admin", "admin"));
+
+        authenticationProvider.onUpdate(new StubAuthViewEvent(null, 
enableAuthView)).join();
+
+        UsernamePasswordCredentials validCredentials = new 
UsernamePasswordCredentials("admin", "admin");
+        TestAuthSubscriber subscriber = new TestAuthSubscriber();
+        authenticationProvider.authenticate(httpRequest, 
validCredentials).subscribe(subscriber);
+        assertAll(
+                () -> assertNull(subscriber.lastError()),

Review Comment:
   I mean, testing that it is enabled actually belongs to a preparatory step, 
while testing that it is disabled is the core test logic. It would be cool to 
make this distiction highlighted (even a comment could do)



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