Sync mute state

ts/test-both/util/timestampLongUtils_test.ts

@@ -0,0 +1,51 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { assert } from 'chai';
+
+import {
+  getSafeLongFromTimestamp,
+  getTimestampFromLong,
+} from '../../util/timestampLongUtils';
+
+describe('getSafeLongFromTimestamp', () => {
+  const { Long } = window.dcodeIO;
+
+  it('returns zero when passed undefined', () => {
+    assert(getSafeLongFromTimestamp(undefined).isZero());
+  });
+
+  it('returns the number as a Long when passed a "normal" number', () => {
+    assert(getSafeLongFromTimestamp(0).isZero());
+    assert.strictEqual(getSafeLongFromTimestamp(123).toString(), '123');
+    assert.strictEqual(getSafeLongFromTimestamp(-456).toString(), '-456');
+  });
+
+  it('returns Long.MAX_VALUE when passed Infinity', () => {
+    assert(getSafeLongFromTimestamp(Infinity).equals(Long.MAX_VALUE));
+  });
+
+  it("returns Long.MAX_VALUE when passed very large numbers, outside of JavaScript's safely representable range", () => {
+    assert.equal(getSafeLongFromTimestamp(Number.MAX_VALUE), Long.MAX_VALUE);
+  });
+});
+
+describe('getTimestampFromLong', () => {
+  const { Long } = window.dcodeIO;
+
+  it('returns zero when passed 0 Long', () => {
+    assert.equal(getTimestampFromLong(Long.fromNumber(0)), 0);
+  });
+
+  it('returns Number.MAX_SAFE_INTEGER when passed Long.MAX_VALUE', () => {
+    assert.equal(getTimestampFromLong(Long.MAX_VALUE), Number.MAX_SAFE_INTEGER);
+  });
+
+  it('returns a normal number', () => {
+    assert.equal(getTimestampFromLong(Long.fromNumber(16)), 16);
+  });
+
+  it('returns 0 for null value', () => {
+    assert.equal(getTimestampFromLong(null), 0);
+  });
+});