test: avoid url substring assertion

Author: diegosouzapw

tests/unit/compression/caveman-engine.test.ts

@@ -99,7 +99,11 @@ describe("caveman engine", () => {
       preservePatterns: [],
     });
     const text = result.body.messages[0].content as string;
-    assert.equal(text.split(/\s+/).includes(url), true, `URL should be preserved`);
+    assert.equal(
+      text.split(/\s+/).some((token) => token === url),
+      true,
+      `URL should be preserved`
+    );
   });
 
   it("should handle empty messages array", () => {