diff --git a/server/src/test/java/cn/keking/PdfViewerCompatibilityTests.java b/server/src/test/java/cn/keking/PdfViewerCompatibilityTests.java
index 84f92633..0f9c9c5f 100644
--- a/server/src/test/java/cn/keking/PdfViewerCompatibilityTests.java
+++ b/server/src/test/java/cn/keking/PdfViewerCompatibilityTests.java
@@ -6,26 +6,29 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.nio.charset.StandardCharsets;
 
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
 public class PdfViewerCompatibilityTests {
 
     @Test
     void shouldLoadCompatibilityModuleBeforePdfJs() throws IOException {
         String viewerHtml = readResource("/static/pdfjs/web/viewer.html");
 
-        assert viewerHtml.contains("<script src=\"compatibility.mjs\" type=\"module\"></script>");
-        assert viewerHtml.indexOf("compatibility.mjs") < viewerHtml.indexOf("../build/pdf.mjs");
+        assertTrue(viewerHtml.contains("<script src=\"compatibility.mjs\" type=\"module\"></script>"));
+        assertTrue(viewerHtml.indexOf("compatibility.mjs") < viewerHtml.indexOf("../build/pdf.mjs"));
     }
 
     @Test
     void shouldLoadCompatibilityModuleInPdfWorker() throws IOException {
         String workerScript = readResource("/static/pdfjs/build/pdf.worker.mjs");
 
-        assert workerScript.contains("import \"../web/compatibility.mjs\";");
+        assertTrue(workerScript.contains("import \"../web/compatibility.mjs\";"));
     }
 
     private String readResource(String resourcePath) throws IOException {
         try (InputStream inputStream = getClass().getResourceAsStream(resourcePath)) {
-            assert inputStream != null;
+            assertNotNull(inputStream);
             return new String(inputStream.readAllBytes(), StandardCharsets.UTF_8);
         }
     }