test(express): verify absence of keepAliveTimeout and headersTimeout when unspecified

TICKET: WP-4029

Author: SatoshiRoppongi

modules/express/test/unit/bitgoExpress.ts

@@ -601,5 +601,45 @@ describe('Bitgo Express', function () {
 
       createServerStub.restore();
     });
+
+    it('should not set keepAliveTimeout and headersTimeout if not specified in config for HTTP server', async function () {
+      const createServerStub = sinon.stub(http, 'createServer').callsFake(() => {
+        return { listen: sinon.stub(), setTimeout: sinon.stub() } as unknown as http.Server;
+      });
+
+      const args: any = {
+        env: 'test',
+        bind: 'localhost',
+        // keepAliveTimeout and headersTimeout are not specified
+      };
+
+      const server = await createServer(args, null as any);
+
+      should(server.keepAliveTimeout).be.undefined();
+      should(server.headersTimeout).be.undefined();
+
+      createServerStub.restore();
+    });
+
+    it('should not set keepAliveTimeout and headersTimeout if not specified in config for HTTPS server', async function () {
+      const createServerStub = sinon.stub(https, 'createServer').callsFake(() => {
+        return { listen: sinon.stub(), setTimeout: sinon.stub() } as unknown as https.Server;
+      });
+
+      const args: any = {
+        env: 'test',
+        bind: 'localhost',
+        sslKey: 'ssl-key',
+        sslCert: 'ssl-cert',
+        // keepAliveTimeout and headersTimeout are not specified
+      };
+
+      const server = await createServer(args, null as any);
+
+      should(server.keepAliveTimeout).be.undefined();
+      should(server.headersTimeout).be.undefined();
+
+      createServerStub.restore();
+    });
   });
 });