Internalize all IM channel implementations

test/channels/dingtalk/harness-client.test.mjs

@@ -0,0 +1,74 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+
+import { HarnessClient, HarnessReplyTracker, HarnessRpcError } from '../../../src/channels/dingtalk/harness-client.mjs';
+
+test('reply tracker associates only the Harness turn created by the DingTalk prompt RPC', () => {
+  const tracker = new HarnessReplyTracker({ promptRpcId: 'dingtalk-prompt', afterSeq: 2 });
+  const update = tracker.consume([
+    { event: { seq: 3, type: 'turn/start', data: { turn: 9 } } },
+    { event: {
+      seq: 4,
+      type: 'user/message',
+      data: { turn: 9, source: { rpcId: 'dingtalk-prompt' } },
+    } },
+    { event: {
+      seq: 5,
+      type: 'assistant/chunk',
+      data: { turn: 9, step: 0, chunk: { type: 'text-delta', index: 0, text: '钉钉' } },
+    } },
+  ]);
+  assert.deepEqual(update, { type: 'text', text: '钉钉' });
+  tracker.consume([
+    { event: {
+      seq: 6,
+      type: 'assistant/message',
+      data: { turn: 9, message: { content: [{ type: 'text', text: '钉钉回复完成' }] } },
+    } },
+    { event: { seq: 7, type: 'turn/end', data: { turn: 9, reason: 'completed' } } },
+  ]);
+  assert.equal(tracker.finished, true);
+  assert.equal(tracker.answer, '钉钉回复完成');
+});
+
+test('reply tracker ignores interleaved turns and events at or before the baseline', () => {
+  const tracker = new HarnessReplyTracker({ promptRpcId: 'target', afterSeq: 10 });
+  tracker.consume([
+    { event: { seq: 9, type: 'turn/start', data: { turn: 1 } } },
+    { event: { seq: 11, type: 'turn/start', data: { turn: 2 } } },
+    { event: { seq: 12, type: 'user/message', data: { turn: 2, source: { rpcId: 'other' } } } },
+    { event: {
+      seq: 13,
+      type: 'assistant/message',
+      data: { turn: 2, message: { content: [{ type: 'text', text: 'wrong' }] } },
+    } },
+  ]);
+  assert.equal(tracker.answer, '');
+  assert.equal(tracker.finished, false);
+});
+
+test('Harness client validates the RPC envelope and preserves server error codes', async () => {
+  let request;
+  const client = new HarnessClient({
+    baseUrl: 'http://127.0.0.1:3080',
+    workspace: '/tmp/workspace',
+    fetchImpl: async (url, options) => {
+      request = { url: url.toString(), body: JSON.parse(options.body) };
+      return {
+        ok: true,
+        json: async () => ({
+          type: 'server-response',
+          rpcId: request.body.rpcId,
+          result: { ok: false, error: { code: 'session-not-found', message: 'missing' } },
+        }),
+      };
+    },
+  });
+
+  await assert.rejects(
+    client.rpc('session.history', { sessionId: 'one' }),
+    (error) => error instanceof HarnessRpcError && error.code === 'session-not-found',
+  );
+  assert.equal(request.url, 'http://127.0.0.1:3080/api/session.history');
+  assert.match(request.body.rpcId, /^dingtalk-/);
+});