feat: Add JwtInterceptor unit test

src/test/java/allercheck/backend/global/web/interceptor/JwtInterceptorTest.java

@@ -1,2 +1,73 @@
-package allercheck.backend.global.web.interceptor;public class JwtInterceptorTest {
+package allercheck.backend.global.web.interceptor;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import allercheck.backend.global.jwt.AuthorizationExtractor;
+import allercheck.backend.global.jwt.TokenProvider;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import org.junit.jupiter.api.DisplayNameGeneration;
+import org.junit.jupiter.api.DisplayNameGenerator;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.http.HttpHeaders;
+import org.springframework.web.cors.CorsUtils;
+
+@SuppressWarnings("NonAsciiCharacters")
+@DisplayNameGeneration(DisplayNameGenerator.ReplaceUnderscores.class)
+@ExtendWith(MockitoExtension.class)
+public class JwtInterceptorTest {
+
+    @InjectMocks
+    private JwtInterceptor jwtInterceptor;
+
+    @Mock
+    private AuthorizationExtractor authorizationExtractor;
+
+    @Mock
+    private Object handler;
+
+    @Mock
+    private TokenProvider tokenProvider;
+
+    @Mock
+    private HttpServletRequest request;
+
+    @Mock
+    private HttpServletResponse response;
+
+
+    @Test
+    public void preflight_요청이_들어오면_true를_반환한다() throws Exception {
+        // given
+        when(request.getMethod()).thenReturn("OPTIONS");
+        when(request.getHeader("Access-Control-Request-Method")).thenReturn("POST");
+        when(request.getHeader("Origin")).thenReturn("https://allercheck-frontend.vercel.app");
+
+        // when
+        boolean result = CorsUtils.isPreFlightRequest(request);
+
+        // then
+        assertTrue(result);
+    }
+
+    @Test
+    public void 토큰을_추출하고_이름을_설정한다() throws Exception {
+        // given
+        when(request.getHeader(HttpHeaders.AUTHORIZATION)).thenReturn("Bearer token");
+        when(authorizationExtractor.extract(request)).thenReturn("Bearer token");
+        when(tokenProvider.getPayLoad("token")).thenReturn("name");
+
+        // when
+        boolean result = jwtInterceptor.preHandle(request, response, handler);
+
+        // then
+        assertTrue(result);
+        verify(request).setAttribute("name", "name");
+    }
 }