feat: add validation and test code

api-server/src/main/java/nexters/payout/apiserver/stock/application/dto/request/SectorRatioRequest.java

@@ -1,10 +1,12 @@
 package nexters.payout.apiserver.stock.application.dto.request;
 
+import jakarta.validation.Valid;
 import jakarta.validation.constraints.Size;
 
 import java.util.List;
 
 public record SectorRatioRequest(
+        @Valid
         @Size(min = 1)
         List<TickerShare> tickerShares
 ) {

api-server/src/main/java/nexters/payout/apiserver/stock/application/dto/request/TickerShare.java

@@ -1,8 +1,12 @@
 package nexters.payout.apiserver.stock.application.dto.request;
 
+import jakarta.validation.constraints.Min;
+
 public record TickerShare(
         String ticker,
+
+        @Min(value = 1)
         Integer share
 ) {
-    
+
 }

api-server/src/test/java/nexters/payout/apiserver/stock/presentation/integration/StockControllerTest.java

@@ -27,7 +27,7 @@
 class StockControllerTest extends IntegrationTest {
 
     @Test
-    void 티커가_1개_미만일_경우_예외가_발생한다() {
+    void 빈_리스트로_요청한_경우_예외가_발생한다() {
         // given
         SectorRatioRequest request = new SectorRatioRequest(List.of());
 
@@ -44,6 +44,25 @@ class StockControllerTest extends IntegrationTest {
                 .as(ErrorResponse.class);
     }
 
+    @Test
+    void 종목_소유_개수가_0개인_경우_예외가_발생한다() {
+        // given
+        SectorRatioRequest request = new SectorRatioRequest(List.of(new TickerShare(AAPL, 0)));
+
+        // when, then
+        RestAssured
+                .given()
+                .log().all()
+                .contentType(ContentType.JSON)
+                .body(request)
+                .when().post("stocks/api/sector-ratio")
+                .then().log().all()
+                .statusCode(400)
+                .extract()
+                .as(ErrorResponse.class);
+    }
+
+
     @Test
     void 티커가_1개_이상일_경우_정상적으로_동작한다() {
         // given