PostService GetPostByCategory

Author: Delacruz-6

src/test/java/com/sopromadze/blogapi/serviceTest/post/GetPostByCategory.java

@@ -0,0 +1,111 @@
+package com.sopromadze.blogapi.serviceTest.post;
+
+import com.sopromadze.blogapi.exception.ResourceNotFoundException;
+import com.sopromadze.blogapi.model.Category;
+import com.sopromadze.blogapi.model.Post;
+import com.sopromadze.blogapi.model.role.Role;
+import com.sopromadze.blogapi.model.role.RoleName;
+import com.sopromadze.blogapi.model.user.User;
+import com.sopromadze.blogapi.payload.PagedResponse;
+import com.sopromadze.blogapi.repository.CategoryRepository;
+import com.sopromadze.blogapi.repository.PostRepository;
+import com.sopromadze.blogapi.service.impl.PostServiceImpl;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.mockito.junit.jupiter.MockitoSettings;
+import org.mockito.quality.Strictness;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageImpl;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Pageable;
+
+import java.time.Instant;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.Mockito.when;
+
+@ExtendWith (MockitoExtension.class)
+@MockitoSettings (strictness = Strictness.LENIENT)
+public class GetPostByCategory {
+
+    @Mock
+    private PostRepository postRepository;
+
+    @Mock
+    private CategoryRepository categoryRepository;
+
+    @InjectMocks
+    private PostServiceImpl postService;
+
+    Pageable pageable;
+    Post post;
+    Category category;
+    Page<Post> posts;
+    List<Post> content;
+    PagedResponse pagedResponse;
+
+    @BeforeEach
+    void init(){
+        category = new Category();
+        category.setId(1L);
+        category.setName("Categoria");
+
+        post = new Post();
+        post.setId(1L);
+        post.setTitle("Post");
+        category.setPosts(List.of(post));
+
+
+        pageable = PageRequest.of(1,1);
+        posts = new PageImpl<>(List.of(post));
+
+
+        pagedResponse = new PagedResponse();
+        pagedResponse.setContent(posts.getContent());
+        pagedResponse.setLast(true);
+        pagedResponse.setPage(0);
+        pagedResponse.setSize(1);
+        pagedResponse.setTotalElements(1);
+        pagedResponse.setTotalPages(1);
+    }
+
+    /*
+    Test:               Obtener los posts de una categoria
+    Entrada:            id(category)
+    Salida esperada:    El test se realiza con exito cuando obtienen los posts por su id de categoria
+    */
+    @Test
+    @DisplayName ("Get posts by category successfully")
+    void getPostsByCategory_success(){
+        when(categoryRepository.findById(1L)).thenReturn(java.util.Optional.of(category));
+        when(postRepository.findByCategoryId(Mockito.any(),Mockito.any())).thenReturn(posts);
+
+        assertEquals(pagedResponse,postService.getPostsByCategory(1L,1,1));
+    }
+
+
+    /*
+    Test:               Al obtener los posts por su categoria, salte excepcion ResourceNotFoundException
+    Entrada:            id(category)
+    Salida esperada:    El test se realiza con exito cuando obtiene la excepcion en la peticion
+    */
+    @Test
+    @DisplayName ("Get posts by category exception ResourceNotFoundException")
+    void getPostsByCategory_failException(){
+        when(categoryRepository.findById(1L)).thenReturn(java.util.Optional.of(category));
+
+        assertThrows(ResourceNotFoundException.class, () -> postService.getPostsByCategory(0L,1,1));
+    }
+
+}