isMuted -> isConversationMuted

ts/test-both/util/isConversationMuted_test.ts

@@ -0,0 +1,23 @@
+// Copyright 2020-2022 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { assert } from 'chai';
+
+import { isConversationMuted } from '../../util/isConversationMuted';
+
+describe('isConversationMuted', () => {
+  it('returns false if passed an undefined expiry time', () => {
+    assert.isFalse(isConversationMuted({}));
+    assert.isFalse(isConversationMuted({ muteExpiresAt: undefined }));
+  });
+
+  it('returns false if passed a date in the past', () => {
+    assert.isFalse(isConversationMuted({ muteExpiresAt: 0 }));
+    assert.isFalse(isConversationMuted({ muteExpiresAt: Date.now() - 123 }));
+  });
+
+  it('returns true if passed a date in the future', () => {
+    assert.isTrue(isConversationMuted({ muteExpiresAt: Date.now() + 123 }));
+    assert.isTrue(isConversationMuted({ muteExpiresAt: Date.now() + 123456 }));
+  });
+});