Show "unplayed" dot on incoming audio messages

ts/test-both/messages/migrateLegacyReadStatus_test.ts

@@ -0,0 +1,55 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+// We want to cast to `any` because we're passing an unexpected field.
+/* eslint-disable @typescript-eslint/no-explicit-any */
+
+import { assert } from 'chai';
+import { ReadStatus } from '../../messages/MessageReadStatus';
+
+import { migrateLegacyReadStatus } from '../../messages/migrateLegacyReadStatus';
+
+describe('migrateLegacyReadStatus', () => {
+  it("doesn't migrate messages that already have the modern read state", () => {
+    assert.isUndefined(
+      migrateLegacyReadStatus({ readStatus: ReadStatus.Read })
+    );
+    assert.isUndefined(
+      migrateLegacyReadStatus({ readStatus: ReadStatus.Unread })
+    );
+  });
+
+  it('converts legacy read values to "read"', () => {
+    assert.strictEqual(migrateLegacyReadStatus({}), ReadStatus.Read);
+    assert.strictEqual(
+      migrateLegacyReadStatus({ unread: 0 } as any),
+      ReadStatus.Read
+    );
+    assert.strictEqual(
+      migrateLegacyReadStatus({ unread: false } as any),
+      ReadStatus.Read
+    );
+  });
+
+  it('converts legacy unread values to "unread"', () => {
+    assert.strictEqual(
+      migrateLegacyReadStatus({ unread: 1 } as any),
+      ReadStatus.Unread
+    );
+    assert.strictEqual(
+      migrateLegacyReadStatus({ unread: true } as any),
+      ReadStatus.Unread
+    );
+  });
+
+  it('converts unexpected truthy values to "unread"', () => {
+    assert.strictEqual(
+      migrateLegacyReadStatus({ unread: 99 } as any),
+      ReadStatus.Unread
+    );
+    assert.strictEqual(
+      migrateLegacyReadStatus({ unread: 'wow!' } as any),
+      ReadStatus.Unread
+    );
+  });
+});