Handle connectivity diagnostics failures

test/server/dataplane-client.test.js

@@ -4,8 +4,8 @@ import { createDataplaneClient } from '../../src/server/dataplaneClient.js';
 
 test('control uses the dataplane socket protocol', async () => {
   const requests = [];
-  const send = async (socketPath, pathname, method, body) => {
-    requests.push({ method, pathname, socketPath, body });
+  const send = async (socketPath, pathname, method, body, timeoutMs) => {
+    requests.push({ method, pathname, socketPath, body, timeoutMs });
     return {
       running: pathname !== '/stop',
       startedAt: 'now',
@@ -42,4 +42,16 @@ test('control uses the dataplane socket protocol', async () => {
     'POST /stop /run/dataplane.sock',
   ]);
   assert.deepEqual(requests[5].body, { devices: [{ id: 'dev_0011223344556677' }] });
+  assert.equal(requests[6].timeoutMs, 15_000);
+});
+
+test('connectivity diagnostics expose a retryable domain error', async () => {
+  const client = createDataplaneClient('/run/dataplane.sock', async () => {
+    throw new Error('Dataplane не ответил');
+  });
+
+  await assert.rejects(client.runConnectivityDiagnostics(), {
+    code: 'DIAGNOSTICS_FAILED',
+    retryable: true,
+  });
 });