add tests for File and test based operations. Only unzip to go

tests/node/tests/File.mjs

@@ -0,0 +1,20 @@
+import assert from "assert";
+import it from "../assertionHandler";
+import TestRegister from "../../lib/TestRegister";
+import File from "../../../src/node/File";
+
+TestRegister.addApiTests([
+    it("File: should exist", () => {
+        assert(File);
+    }),
+
+    it("File: Should have same properties as DOM File object", () => {
+        const uint8Array = new Uint8Array(Buffer.from("hello"));
+        const file = new File([uint8Array], "name.txt");
+        assert.equal(file.name, "name.txt");
+        assert(typeof file.lastModified, "number");
+        assert(file.lastModifiedDate instanceof Date);
+        assert.equal(file.size, uint8Array.length);
+        assert.equal(file.type, "text/plain");
+    }),
+]);