LangBot/web/tests/unit/agent-debug-execution.test.mjs

import assert from 'node:assert/strict';
import fs from 'node:fs';
import test from 'node:test';
import ts from 'typescript';
const source = fs.readFileSync(
  new URL(
    '../../src/app/home/agents/components/debug-execution.ts',
    import.meta.url,
  ),
  'utf8',
);
const module = { exports: {} };
new Function(
  'exports',
  ts.transpileModule(source, {
    compilerOptions: {
      module: ts.ModuleKind.CommonJS,
      target: ts.ScriptTarget.ES2022,
    },
  }).outputText,
)(module.exports);
const { executionSteps } = module.exports;
const event = (type, data) => ({ type, data });
test('separates streamed thinking and text, replaces final snapshot without duplication', () => {
  assert.deepEqual(
    executionSteps([
      event('message.delta', { chunk: { content: '<think>plan' } }),
      event('message.delta', { chunk: { content: '</think>hello' } }),
      event('message.completed', {
        message: { content: '<think>plan</think>hello' },
      }),
      event('run.completed', { message: { content: 'hello' } }),
    ]),
    [{ kind: 'message', text: 'hello', reasoning: 'plan' }],
  );
});
test('retains structured reasoning and tool parameters/results in order', () => {
  const steps = executionSteps([
    event('message.delta', {
      chunk: { provider_specific_fields: { reasoning_content: 'plan' } },
    }),
    event('message.completed', { message: { content: '' } }),
    event('tool.call.started', {
      tool_call_id: '1',
      tool_name: 'exec',
      parameters: { command: 'echo hi' },
    }),
    event('tool.call.started', {
      tool_call_id: '2',
      tool_name: 'exec',
      parameters: { command: 'bad' },
    }),
    event('tool.call.completed', {
      tool_call_id: '2',
      tool_name: 'exec',
      error: 'failed',
    }),
    event('tool.call.completed', {
      tool_call_id: '1',
      tool_name: 'exec',
      result: { stdout: 'hi' },
    }),
    event('run.failed', {}),
  ]);
  assert.equal(steps[0].reasoning, 'plan');
  assert.equal(steps[1].parameters.command, 'echo hi');
  assert.deepEqual(steps[1].result, { stdout: 'hi' });
  assert.equal(steps[2].status, 'failed');
  assert.equal(steps[2].error, 'failed');
});

test('replaces LocalAgent cumulative snapshots instead of repeating text', () => {
  assert.deepEqual(
    executionSteps([
      event('message.delta', { chunk: { content: 'hello', msg_sequence: 1 } }),
      event('message.delta', {
        chunk: { content: 'hello world', msg_sequence: 2 },
      }),
      event('message.delta', {
        chunk: { content: 'hello world', msg_sequence: 3, is_final: true },
      }),
    ]),
    [{ kind: 'message', text: 'hello world', reasoning: '' }],
  );
});

test('shows failed tool results even when the call transport completed', () => {
  const steps = executionSteps([
    event('tool.call.started', {
      tool_call_id: 'exit7',
      tool_name: 'exec',
      parameters: { command: 'exit 7' },
    }),
    event('tool.call.completed', {
      tool_call_id: 'exit7',
      tool_name: 'exec',
      result: { ok: false, exit_code: 7, stderr: 'expected' },
    }),
  ]);
  assert.equal(steps[0].status, 'failed');
  assert.equal(steps[0].result.exit_code, 7);
});

test('does not repeat prior thinking across LocalAgent tool turns', () => {
  const prefix = '<think>first thought</think>';
  const steps = executionSteps([
    event('message.delta', { chunk: { content: prefix, msg_sequence: 1 } }),
    event('tool.call.started', {
      tool_call_id: 'w',
      tool_name: 'write',
      parameters: { path: '/workspace/a' },
    }),
    event('tool.call.completed', {
      tool_call_id: 'w',
      tool_name: 'write',
      result: { ok: true },
    }),
    event('message.delta', {
      chunk: { content: prefix + 'now read', msg_sequence: 1 },
    }),
    event('tool.call.started', { tool_call_id: 'r', tool_name: 'read' }),
    event('tool.call.completed', {
      tool_call_id: 'r',
      tool_name: 'read',
      result: { ok: true },
    }),
    event('message.delta', {
      chunk: { content: prefix + 'now read' + 'done', msg_sequence: 1 },
    }),
    event('message.completed', { message: { content: 'done' } }),
  ]);
  const messages = steps.filter((s) => s.kind === 'message');
  assert.deepEqual(messages, [
    { kind: 'message', text: '', reasoning: 'first thought' },
    { kind: 'message', text: 'now read', reasoning: '' },
    { kind: 'message', text: 'done', reasoning: '' },
  ]);
});