first-commit

e2e/tests/todos.test.ts

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+import { describe, expect, it } from 'vitest';
+import {
+  latestTodosFromEvents,
+  parseTodoWriteInput,
+  unfinishedTodosFromEvents,
+} from '../../apps/web/src/runtime/todos';
+import type { AgentEvent } from '../../apps/web/src/types';
+
+const firstTodoInput = {
+  todos: [
+    { content: 'Draft layout', status: 'completed' },
+    { content: 'Build components', status: 'in_progress', activeForm: 'Building components' },
+    { content: 'Run QA', status: 'pending' },
+    { content: '', status: 'pending' },
+    { content: 'Unknown status defaults pending', status: 'blocked' },
+    null,
+  ],
+};
+
+describe('todo event helpers', () => {
+  it('normalizes TodoWrite input and ignores malformed items', () => {
+    expect(parseTodoWriteInput(firstTodoInput)).toEqual([
+      { content: 'Draft layout', status: 'completed', activeForm: undefined },
+      {
+        content: 'Build components',
+        status: 'in_progress',
+        activeForm: 'Building components',
+      },
+      { content: 'Run QA', status: 'pending', activeForm: undefined },
+      {
+        content: 'Unknown status defaults pending',
+        status: 'pending',
+        activeForm: undefined,
+      },
+    ]);
+  });
+
+  it('uses the latest TodoWrite event as the current todo truth', () => {
+    const events: AgentEvent[] = [
+      { kind: 'tool_use', id: 'todo-1', name: 'TodoWrite', input: firstTodoInput },
+      { kind: 'text', text: 'Working...' },
+      { kind: 'tool_use', id: 'todo-empty', name: 'TodoWrite', input: { todos: [] } },
+      {
+        kind: 'tool_use',
+        id: 'todo-2',
+        name: 'TodoWrite',
+        input: { todos: [{ content: 'Final polish', status: 'pending' }] },
+      },
+    ];
+
+    expect(latestTodosFromEvents(events)).toEqual([
+      { content: 'Final polish', status: 'pending', activeForm: undefined },
+    ]);
+  });
+
+  it('treats an empty latest TodoWrite event as authoritative', () => {
+    const events: AgentEvent[] = [
+      { kind: 'tool_use', id: 'todo-1', name: 'TodoWrite', input: firstTodoInput },
+      { kind: 'text', text: 'All done.' },
+      { kind: 'tool_use', id: 'todo-empty', name: 'TodoWrite', input: { todos: [] } },
+    ];
+
+    expect(latestTodosFromEvents(events)).toEqual([]);
+    expect(unfinishedTodosFromEvents(events)).toEqual([]);
+  });
+
+  it('returns only pending and in-progress todos as unfinished', () => {
+    expect(unfinishedTodosFromEvents([
+      { kind: 'tool_use', id: 'todo-1', name: 'TodoWrite', input: firstTodoInput },
+    ])).toEqual([
+      {
+        content: 'Build components',
+        status: 'in_progress',
+        activeForm: 'Building components',
+      },
+      { content: 'Run QA', status: 'pending', activeForm: undefined },
+      {
+        content: 'Unknown status defaults pending',
+        status: 'pending',
+        activeForm: undefined,
+      },
+    ]);
+  });
+});