Reorganize test cases

ts/test-node/badges/isBadgeImageFileUrlValid_test.ts

@@ -0,0 +1,38 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { assert } from 'chai';
+
+import { isBadgeImageFileUrlValid } from '../../badges/isBadgeImageFileUrlValid';
+
+describe('isBadgeImageFileUrlValid', () => {
+  const UPDATES_URL = 'https://updates2.signal.org/desktop';
+
+  it('returns false for invalid URLs', () => {
+    ['', 'uhh', 'http:'].forEach(url => {
+      assert.isFalse(isBadgeImageFileUrlValid(url, UPDATES_URL));
+    });
+  });
+
+  it("returns false if the URL doesn't start with the right prefix", () => {
+    [
+      'https://user:pass@updates2.signal.org/static/badges/foo',
+      'https://signal.org/static/badges/foo',
+      'https://updates.signal.org/static/badges/foo',
+      'http://updates2.signal.org/static/badges/foo',
+      'http://updates2.signal.org/static/badges/foo',
+    ].forEach(url => {
+      assert.isFalse(isBadgeImageFileUrlValid(url, UPDATES_URL));
+    });
+  });
+
+  it('returns true for valid URLs', () => {
+    [
+      'https://updates2.signal.org/static/badges/foo',
+      'https://updates2.signal.org/static/badges/foo.svg',
+      'https://updates2.signal.org/static/badges/foo.txt',
+    ].forEach(url => {
+      assert.isTrue(isBadgeImageFileUrlValid(url, UPDATES_URL));
+    });
+  });
+});