✅ add recipe steps retrieval

backend/src/test/java/net/pengcook/recipe/controller/RecipeControllerTest.java

@@ -34,4 +34,15 @@ void readRecipes() {
                 .then().log().all()
                 .body("size()", is(3));
     }
+
+    @Test
+    @DisplayName("레시피 상세 스텝을 조회한다.")
+    void readRecipeSteps() {
+        RestAssured.given().log().all()
+                .contentType(ContentType.JSON)
+                .when()
+                .get("/api/recipes/1/steps")
+                .then().log().all()
+                .body("size()", is(3));
+    }
 }

backend/src/test/java/net/pengcook/recipe/service/RecipeServiceTest.java

@@ -2,9 +2,12 @@
 
 import static org.assertj.core.api.Assertions.assertThat;
 
+import java.util.Arrays;
 import java.util.List;
 import net.pengcook.recipe.dto.MainRecipeResponse;
+import net.pengcook.recipe.dto.RecipeStepResponse;
 import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.CsvSource;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -28,4 +31,19 @@ void readRecipes(int pageNumber, int pageSize, int expectedFirstRecipeId) {
 
         assertThat(mainRecipeResponses.getFirst().recipeId()).isEqualTo(expectedFirstRecipeId);
     }
+
+    @Test
+    @DisplayName("특정 레시피의 스텝을 sequence 순서로 조회한다.")
+    void readRecipeSteps() {
+        long recipeId = 1L;
+        List<RecipeStepResponse> expectedRecipeStepResponses = Arrays.asList(
+                new RecipeStepResponse(1L, 1, "레시피1 설명1 이미지", "레시피1 설명1", 1),
+                new RecipeStepResponse(3L, 1, "레시피1 설명2 이미지", "레시피1 설명2", 2),
+                new RecipeStepResponse(2L, 1, "레시피1 설명3 이미지", "레시피1 설명3", 3)
+        );
+
+        List<RecipeStepResponse> recipeStepResponses = recipeService.readRecipeSteps(recipeId);
+
+        assertThat(recipeStepResponses).isEqualTo(expectedRecipeStepResponses);
+    }
 }

backend/src/test/resources/data/recipe.sql

@@ -18,6 +18,9 @@ ALTER TABLE category_recipe ALTER COLUMN id RESTART;
 TRUNCATE TABLE ingredient_recipe;
 ALTER TABLE ingredient_recipe ALTER COLUMN id RESTART;
 
+TRUNCATE TABLE recipe_step;
+ALTER TABLE recipe_step ALTER COLUMN id RESTART;
+
 SET REFERENTIAL_INTEGRITY TRUE;
 
 INSERT INTO users (email, username, nickname, image, birth, region)
@@ -76,3 +79,8 @@ VALUES (1, 1, 'REQUIRED'),
        (3, 3, 'REQUIRED'),
        (7, 3, 'REQUIRED'),
        (2, 4, 'REQUIRED');
+
+INSERT INTO recipe_step (recipe_id, image, description, sequence)
+VALUES (1, '레시피1 설명1 이미지', '레시피1 설명1', 1),
+       (1, '레시피1 설명3 이미지', '레시피1 설명3', 3),
+       (1, '레시피1 설명2 이미지', '레시피1 설명2', 2);