Refactor of asset bundles

plugos/asset_bundle/bundle.test.ts

@@ -0,0 +1,16 @@
+import { AssetBundle } from "./bundle.ts";
+import { assertEquals } from "../../test_deps.ts";
+
+Deno.test("Asset bundle", () => {
+  const assetBundle = new AssetBundle();
+  assetBundle.writeTextFileSync("test.txt", "Sup yo");
+  assertEquals("text/plain", assetBundle.getMimeType("test.txt"));
+  assertEquals("Sup yo", assetBundle.readTextFileSync("test.txt"));
+  const buf = new Uint8Array(3);
+  buf[0] = 1;
+  buf[1] = 2;
+  buf[2] = 3;
+  assetBundle.writeFileSync("test.bin", buf);
+  assertEquals("application/octet-stream", assetBundle.getMimeType("test.bin"));
+  assertEquals(buf, assetBundle.readFileSync("test.bin"));
+});