Show challenge when requested by server

ts/test-both/state/ducks/network_test.ts

@@ -0,0 +1,26 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { assert } from 'chai';
+
+import { actions, getEmptyState, reducer } from '../../../state/ducks/network';
+
+describe('both/state/ducks/network', () => {
+  describe('setChallengeStatus', () => {
+    const { setChallengeStatus } = actions;
+
+    it('updates whether we need to complete a server challenge', () => {
+      const idleState = reducer(getEmptyState(), setChallengeStatus('idle'));
+      assert.equal(idleState.challengeStatus, 'idle');
+
+      const requiredState = reducer(idleState, setChallengeStatus('required'));
+      assert.equal(requiredState.challengeStatus, 'required');
+
+      const pendingState = reducer(
+        requiredState,
+        setChallengeStatus('pending')
+      );
+      assert.equal(pendingState.challengeStatus, 'pending');
+    });
+  });
+});