cleanup work for tests

spring-5/src/test/java/com/baeldung/security/SecurityIntegrationTest.java

@@ -0,0 +1,38 @@
+package com.baeldung.security;
+
+import com.baeldung.SpringSecurity5Application;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.ApplicationContext;
+import org.springframework.security.test.context.support.WithMockUser;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringRunner;
+import org.springframework.test.web.reactive.server.WebTestClient;
+
+@RunWith(SpringRunner.class)
+@ContextConfiguration(classes = SpringSecurity5Application.class)
+public class SecurityIntegrationTest {
+
+    @Autowired
+    ApplicationContext context;
+
+    private WebTestClient rest;
+
+    @Before
+    public void setup() {
+        this.rest = WebTestClient.bindToApplicationContext(this.context).configureClient().build();
+    }
+
+    @Test
+    public void whenNoCredentials_thenRedirectToLogin() {
+        this.rest.get().uri("/").exchange().expectStatus().is3xxRedirection();
+    }
+
+    @Test
+    @WithMockUser
+    public void whenHasCredentials_thenSeesGreeting() {
+        this.rest.get().uri("/").exchange().expectStatus().isOk().expectBody(String.class).isEqualTo("Hello, user");
+    }
+}