Add tests

Author: gernberg

tests/tools/pages.test.ts

@@ -297,6 +297,21 @@ describe('pages', () => {
         assert.ok(response.includePages);
       });
     });
+    it('navigates to correct page with initScript', async () => {
+      await withBrowser(async (response, context) => {
+        await navigatePage.handler(
+          {params: {url: 'data:text/html,<div>Hello MCP</div>', initScript: 'window.initScript = "completed"'}},
+          response,
+          context,
+        );
+        const page = context.getSelectedPage();
+
+        // wait for up to 1s for the global variable to set by the initScript to exist
+        await page.waitForFunction("window.initScript==='completed'", {timeout: 1000});
+
+        assert.ok(response.includePages);
+      });
+    });
   });
   describe('resize', () => {
     it('resize the page', async () => {