run npm install to generate a package lock

node_modules/decode-base64/test/index.js

@@ -0,0 +1,43 @@
+
+/* IMPORT */
+
+import {describe} from 'fava';
+import {Buffer} from 'node:buffer';
+import U8 from 'uint8-encoding';
+import decodeBrowser from '../dist/browser.js';
+import decodeNode from '../dist/node.js';
+import Fixtures from './fixtures.js';
+
+/* MAIN */
+
+describe ( 'decodeBase64', () => {
+
+  for ( const [decode, name] of [[decodeBrowser, 'browser'], [decodeNode, 'node']] ) {
+
+    describe ( name, it => {
+
+      it ( 'returns an actual Uint8Array', t => {
+
+        t.is ( decode ( 'Zm9v' ).constructor, Uint8Array );
+
+      });
+
+      it ( 'works with strings', t => {
+
+        for ( const fixture of Fixtures ) {
+
+          const encoded = U8.encode ( fixture );
+          const base64 = Buffer.from ( fixture ).toString ( 'base64' );
+          const decoded = decode ( base64 );
+
+          t.deepEqual ( decoded, encoded );
+
+        }
+
+      });
+
+    });
+
+  }
+
+});