test: 비어있는 리프레시 토큰 테스트 케이스 추가

Author: nayonsoso

src/test/java/com/example/solidconnection/auth/controller/RefreshTokenCookieManagerTest.java

@@ -12,6 +12,8 @@
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Nested;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
 import org.springframework.mock.web.MockHttpServletRequest;
 import org.springframework.mock.web.MockHttpServletResponse;
 
@@ -99,7 +101,7 @@ class 쿠키에서_리프레시_토큰을_추출한다 {
         }
 
         @Test
-        void 리프레시_토큰에_해당하는_쿠키가_없으면_예외가_발생한다() {
+        void 리프레시_토큰_쿠키가_없으면_예외가_발생한다() {
             // given
             MockHttpServletRequest request = new MockHttpServletRequest();
             request.setCookies(new Cookie("otherCookie", "some-value"));
@@ -109,5 +111,18 @@ class 쿠키에서_리프레시_토큰을_추출한다 {
                     .isInstanceOf(CustomException.class)
                     .hasMessageContaining(ErrorCode.REFRESH_TOKEN_NOT_EXISTS.getMessage());
         }
+
+        @ParameterizedTest
+        @ValueSource(strings = {"", " "})
+        void 리프레시_토큰_쿠키가_비어있으면_예외가_발생한다(String token) {
+            // given
+            MockHttpServletRequest request = new MockHttpServletRequest();
+            request.setCookies(new Cookie(REFRESH_TOKEN_COOKIE_NAME, token));
+
+            // when & then
+            assertThatCode(() -> cookieManager.getRefreshToken(request))
+                    .isInstanceOf(CustomException.class)
+                    .hasMessageContaining(ErrorCode.REFRESH_TOKEN_NOT_EXISTS.getMessage());
+        }
     }
 }