init the awkward code

static/js/libarchive.js/test/formats/tar.test.js

@@ -0,0 +1,42 @@
+/* eslint-disable no-undef */
+const {checksum} = require('../checksum');
+const {navigate,inputFile,response,setup,cleanup} = require('../testutils');
+
+let browser,page;
+
+beforeAll(async () => {
+    let tmp = await setup();
+    browser = tmp.browser;
+    page = tmp.page;
+});
+
+describe("Extract TAR files with various compressions", () => {
+    test("Extract TAR without compression", async () => {
+        await navigate(page);
+        await inputFile('archives/tar/test.tar',page);
+        const files = await response(page);
+        expect(files).toEqual(checksum);
+    }, 16000);
+    test("Extract TAR BZIP2", async () => {
+        await navigate(page);
+        await inputFile('archives/tar/test.tar.bz2',page);
+        const files = await response(page);
+        expect(files).toEqual(checksum);
+    }, 16000);
+    test("Extract TAR GZIP", async () => {
+        await navigate(page);
+        await inputFile('archives/tar/test.tar.gz',page);
+        const files = await response(page);
+        expect(files).toEqual(checksum);
+    }, 16000);
+    test("Extract TAR LZMA2", async () => {
+        await navigate(page);
+        await inputFile('archives/tar/test.tar.xz',page);
+        const files = await response(page);
+        expect(files).toEqual(checksum);
+    }, 16000);
+});
+
+afterAll(() => {
+    cleanup(browser);
+});