BAEL-6093 add spring boot 3 url matching code sample (#13744)

spring-boot-modules/spring-boot-3-url-matching/src/test/java/com/baeldung/sample/resources/GreetingsControllerApiIntegrationTest.java

@@ -0,0 +1,45 @@
+package com.baeldung.sample.resources;
+
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.http.MediaType;
+import org.springframework.test.web.servlet.MockMvc;
+
+@WebMvcTest(controllers = GreetingsController.class)
+class GreetingsControllerApiIntegrationTest {
+
+    private static final String BASEURL = "/some";
+    private static final String DEFAULT_MEDIA_TYPE = MediaType.APPLICATION_JSON_VALUE;
+
+    @Autowired
+    MockMvc mvc;
+
+    @Test
+    public void testGreeting() throws Exception {
+        mvc.perform(get(BASEURL + "/greeting").accept(DEFAULT_MEDIA_TYPE))
+          .andExpect(status().isOk())
+          .andExpect(content().string("Hello"));
+    }
+
+    @Test
+    @Disabled("Disabled while TrailingSlashRedirectFilter is in use.")
+    public void testGreetingTrailingSlash() throws Exception {
+        mvc.perform(get(BASEURL + "/greeting/").accept(DEFAULT_MEDIA_TYPE))
+          .andExpect(status().isOk())
+          .andExpect(content().string("Hello with slash"));
+    }
+
+    @Test
+    public void testGreetingTrailingSlashWithFilter() throws Exception {
+        mvc.perform(get(BASEURL + "/greeting/").accept(DEFAULT_MEDIA_TYPE))
+          .andExpect(status().isOk())
+          .andExpect(content().string("Hello"));
+    }
+
+}

spring-boot-modules/spring-boot-3-url-matching/src/test/java/com/baeldung/sample/resources/GreetingsControllerReactiveApiIntegrationTest.java

@@ -0,0 +1,46 @@
+package com.baeldung.sample.resources;
+
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.reactive.WebFluxTest;
+import org.springframework.test.web.reactive.server.WebTestClient;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+@WebFluxTest
+public class GreetingsControllerReactiveApiIntegrationTest {
+    private static final String BASEURL = "/some/reactive";
+    @Autowired
+    private WebTestClient webClient;
+    @Test
+    public void testGreeting() {
+        webClient.get().uri( BASEURL + "/greeting")
+                .exchange()
+                .expectStatus().isOk()
+                .expectBody().consumeWith(result -> {
+                    String responseBody = new String(result.getResponseBody());
+                    assertTrue(responseBody.contains("Hello reactive"));
+                });
+    }
+    @Test
+    @Disabled("Disabled while TrailingSlashRedirectFilter is in use.")
+    public void testGreetingTrailingSlash() {
+        webClient.get().uri(BASEURL + "/greeting/")
+                .exchange()
+                .expectStatus().isOk()
+                .expectBody().consumeWith(result -> {
+                    String responseBody = new String(result.getResponseBody());
+                    assertTrue(responseBody.contains("Hello with slash reactive"));
+                });
+    }
+    @Test
+    public void testGreetingTrailingSlashWithFilter() {
+        webClient.get().uri(BASEURL +  "/greeting/")
+                .exchange()
+                .expectStatus().isOk()
+                .expectBody().consumeWith(result -> {
+                    String responseBody = new String(result.getResponseBody());
+                    assertTrue(responseBody.contains("Hello reactive"));
+                });
+    }
+}