BAEL-9467 Deserialize Response JSON as List<POJO> in Rest Assured (#18866)

* Update AppControllerIntegrationTest.java

* Add test case for movies endpoint response

Added a new test case to verify the movies endpoint returns all movies as a list.

---------

Co-authored-by: Deepak Vohra <[email protected]>

Author: dvohra16

testing-modules/rest-assured/src/test/java/com/baeldung/restassured/controller/AppControllerIntegrationTest.java

@@ -12,6 +12,7 @@
 import java.io.IOException;
 import java.util.HashMap;
 import java.util.HashSet;
+import java.util.List;  
 import java.util.Map;
 import java.util.Set;
 
@@ -30,6 +31,7 @@
 import com.baeldung.restassured.model.Movie;
 import com.baeldung.restassured.service.AppService;
 
+import io.restassured.common.mapper.TypeRef;  
 import io.restassured.response.Response;
 
 @RunWith(SpringRunner.class)
@@ -78,7 +80,7 @@ public void givenMovieId_whenMakingGetRequestToMovieEndpoint_thenReturnMovie() {
     }
 
     @Test
-    public void whenCallingMoviesEndpoint_thenReturnAllMovies() {
+    public void givenSetMovie_whenCallingMoviesEndpoint_thenReturnAllMovies() {
 
         Set<Movie> movieSet = new HashSet<>();
         movieSet.add(new Movie(1, "movie1", "summary1"));
@@ -96,6 +98,22 @@ public void whenCallingMoviesEndpoint_thenReturnAllMovies() {
             .as(Movie[].class);
         assertThat(movies.length).isEqualTo(2);
     }
+    
+    @Test
+    public void whenCallingMoviesEndpoint_thenReturnAllMoviesAsList() {
+        Set<Movie> movieSet = new HashSet<>();
+        movieSet.add(new Movie(1, "movie1", "summary1"));
+        movieSet.add(new Movie(2, "movie2", "summary2"));
+        when(appService.getAll()).thenReturn(movieSet);
+
+        List<Movie> movies = get(uri + "/movies").then()
+            .statusCode(200)
+            .extract()
+            .as(new TypeRef<List<Movie>>() {});
+
+        assertThat(movies.size()).isEqualTo(2);
+        assertThat(movies).usingFieldByFieldElementComparator().containsAll(movieSet);
+    }
 
     @Test
     public void givenMovie_whenMakingPostRequestToMovieEndpoint_thenCorrect() {