init the awkward code

static/js/libarchive.js/test/testutils.js

@@ -0,0 +1,46 @@
+const StaticServer = require('static-server');
+const puppeteer = require('puppeteer');
+const port = 8787;
+const width = 800;
+const height = 600;
+const server = new StaticServer({
+    rootPath: '.',
+    port: port,
+    cors: '*',
+});
+
+const startServer = () => new Promise((resolve) => {
+    server.start( () => {
+        console.log('Server listening to', port);
+        resolve();
+    });
+});
+
+module.exports = {
+    setup: async () => {
+        let browser = await puppeteer.launch();
+        let page = await browser.newPage();
+        await page.setViewport({ width, height });
+        await startServer();
+        page.on('console', msg => {
+            for (let i = 0; i < msg.args().length; ++i) console.log(`${i}: ${msg.args()[i]}`);
+        });
+        return {browser,page};
+    },
+    cleanup: (browser) => {
+        server.stop();
+        browser.close();
+    },
+    navigate: async function (page, path = 'index.html') {
+        await page.goto(`http://127.0.0.1:${port}/test/files/${path}`);
+    },
+    inputFile: async function (file,page){
+        const fileInp = await page.$('#file');
+        fileInp.uploadFile('test/files/'+file);
+    },
+    response: async function (page){
+        await page.waitForSelector('#done');
+        return await page.evaluate(`window.obj`);
+    }
+};
+