refactor: 코드래빗 리뷰사항 반영

* test: contains 로 비교하던 검증 로직을 isEqualTo 로 수정

* test: preHandle 테스트 에서 result 값을 항상 검증

Author: sukangpunch

src/test/java/com/example/solidconnection/common/interceptor/ApiPerformanceInterceptorTest.java

@@ -191,7 +191,7 @@ class 예외_발생_시 {
                     .findFirst()
                     .orElseThrow();
             assertAll(
-                    () -> assertThat(logEvent.getLevel().toString()).contains("INFO"),
+                    () -> assertThat(logEvent.getLevel().toString()).isEqualTo("INFO"),
                     () -> assertThat(logEvent.getFormattedMessage()).contains("uri=/api/error"),
                     () -> assertThat(logEvent.getFormattedMessage()).contains("method_type=GET"),
                     () -> assertThat(logEvent.getFormattedMessage()).contains("status=500")

src/test/java/com/example/solidconnection/common/interceptor/RequestContextInterceptorTest.java

@@ -62,9 +62,11 @@ class PreHandle_메서드 {
             when(request.getAttribute(BEST_MATCHING_PATTERN_ATTRIBUTE)).thenReturn(null);
 
             // when
-            interceptor.preHandle(request, response, handler);
+            boolean result = interceptor.preHandle(request, response, handler);
 
             // then
+            assertThat(result).isTrue();
+
             RequestContext context = RequestContextHolder.getContext();
             assertThat(context.getBestMatchPath()).isNull();
         }