openpencil/apps/web/server/__tests__/exec-tool-endpoint.test.ts
2026-05-03 21:00:00 +08:00

240 lines
8 KiB
TypeScript

import { describe, it, expect, beforeEach, vi } from 'vitest';
import type { PenDocument } from '../../src/types/pen';
// Mock h3 before importing the handler so `defineEventHandler` returns
// the inner function as-is (testable directly, no real h3 runtime).
vi.mock('h3', () => ({
defineEventHandler: <T extends (...args: unknown[]) => unknown>(fn: T): T => fn,
readBody: vi.fn(),
setResponseStatus: vi.fn(),
}));
// Mock server-logger to a no-op so tests don't spam the console.
vi.mock('../utils/server-logger', () => ({
serverLog: {
info: vi.fn(),
warn: vi.fn(),
error: vi.fn(),
},
}));
import { readBody, setResponseStatus } from 'h3';
import execTool from '../api/mcp/exec-tool.post';
import { clearSyncState, setSyncDocument, getSyncDocument } from '../utils/mcp-sync-state';
type AnyEvent = Record<string, unknown>;
/**
* Minimal doc with one root frame so parent_id resolution has
* something to find.
*/
function seedDoc(extraChildren: Array<{ id: string; [k: string]: unknown }> = []): PenDocument {
const doc: PenDocument = {
version: '1.0.0',
children: [],
pages: [
{
id: 'p1',
name: 'Page 1',
children: [
{
id: 'root-1',
type: 'frame',
name: 'Root',
width: 375,
height: 812,
layout: 'vertical',
children: extraChildren as never,
},
],
},
],
};
setSyncDocument(doc);
return doc;
}
describe('POST /api/mcp/exec-tool', () => {
const event: AnyEvent = {};
beforeEach(() => {
clearSyncState();
(readBody as unknown as ReturnType<typeof vi.fn>).mockReset();
(setResponseStatus as unknown as ReturnType<typeof vi.fn>).mockReset();
});
it('rejects missing body with 400', async () => {
(readBody as unknown as ReturnType<typeof vi.fn>).mockResolvedValue(null);
const res = await execTool(event as never);
expect(res.ok).toBe(false);
expect(setResponseStatus).toHaveBeenCalledWith(event, 400);
});
it('rejects unknown tool name with 404 + coverage list in error', async () => {
seedDoc();
(readBody as unknown as ReturnType<typeof vi.fn>).mockResolvedValue({
name: 'add_fictional_v999',
});
const res = await execTool(event as never);
expect(res.ok).toBe(false);
if (!res.ok) {
expect(res.error).toContain('add_fictional_v999');
expect(res.error).toContain('add_card_row_v0');
}
expect(setResponseStatus).toHaveBeenCalledWith(event, 404);
});
it('rejects real filePath (element-tool route) with 501 — live canvas only', async () => {
seedDoc();
(readBody as unknown as ReturnType<typeof vi.fn>).mockResolvedValue({
name: 'add_heading_v0',
arguments: { content: 'Hi', filePath: '/tmp/saved.op' },
});
const res = await execTool(event as never);
expect(res.ok).toBe(false);
if (!res.ok) expect(res.error).toContain('/tmp/saved.op');
expect(setResponseStatus).toHaveBeenCalledWith(event, 501);
});
it('accepts filePath="live://canvas" as the default target', async () => {
seedDoc();
(readBody as unknown as ReturnType<typeof vi.fn>).mockResolvedValue({
name: 'add_heading_v0',
arguments: { content: 'Hi', filePath: 'live://canvas' },
});
const res = await execTool(event as never);
expect(res.ok).toBe(true);
});
it('rejects invalid pageId with 404', async () => {
seedDoc();
(readBody as unknown as ReturnType<typeof vi.fn>).mockResolvedValue({
name: 'add_heading_v0',
arguments: { content: 'Hi', pageId: 'nonexistent-page' },
});
const res = await execTool(event as never);
expect(res.ok).toBe(false);
if (!res.ok) expect(res.error).toContain('nonexistent-page');
expect(setResponseStatus).toHaveBeenCalledWith(event, 404);
});
it('rejects invalid parent_id with 404', async () => {
seedDoc();
(readBody as unknown as ReturnType<typeof vi.fn>).mockResolvedValue({
name: 'add_heading_v0',
arguments: { content: 'Hi', parent_id: 'does-not-exist' },
});
const res = await execTool(event as never);
expect(res.ok).toBe(false);
if (!res.ok) expect(res.error).toContain('does-not-exist');
expect(setResponseStatus).toHaveBeenCalledWith(event, 404);
});
it('rejects invalid default_parent_id (when parent_id absent) with 404', async () => {
seedDoc();
(readBody as unknown as ReturnType<typeof vi.fn>).mockResolvedValue({
name: 'add_heading_v0',
arguments: { content: 'Hi' },
default_parent_id: 'stale-id',
});
const res = await execTool(event as never);
expect(res.ok).toBe(false);
if (!res.ok) expect(res.error).toContain('stale-id');
expect(setResponseStatus).toHaveBeenCalledWith(event, 404);
});
it('happy path: valid element-tool call mutates sync-state + returns doc', async () => {
seedDoc();
(readBody as unknown as ReturnType<typeof vi.fn>).mockResolvedValue({
name: 'add_heading_v0',
arguments: { content: 'Welcome' },
});
const res = await execTool(event as never);
expect(res.ok).toBe(true);
if (res.ok) {
expect(res.insertedNodeId).toBeTruthy();
expect(res.insertedNodeIds).toEqual([res.insertedNodeId]);
// sync-state now holds the updated doc
const { doc } = getSyncDocument();
expect(doc).not.toBeNull();
// Element tool inserted at first page root when no parent_id;
// should see at least one new child beyond the seeded root frame.
const firstPage = (doc as PenDocument).pages?.[0];
expect((firstPage?.children ?? []).length).toBeGreaterThanOrEqual(1);
}
});
it('happy path: parent_id targets seeded node + respects hierarchy', async () => {
// Seed with a named container to insert INTO.
const doc: PenDocument = {
version: '1.0.0',
children: [],
pages: [
{
id: 'p1',
name: 'Page 1',
children: [
{
id: 'container-1',
type: 'frame',
name: 'Container',
width: 375,
height: 400,
layout: 'vertical',
children: [],
},
],
},
],
};
setSyncDocument(doc);
(readBody as unknown as ReturnType<typeof vi.fn>).mockResolvedValue({
name: 'add_heading_v0',
arguments: { content: 'Nested', parent_id: 'container-1' },
});
const res = await execTool(event as never);
expect(res.ok).toBe(true);
if (res.ok) {
const { doc: updated } = getSyncDocument();
const page = (updated as PenDocument).pages?.[0];
const container = page?.children?.[0] as { children?: Array<{ id: string }> };
expect(container.children).toBeDefined();
expect(container.children?.length).toBe(1);
expect(container.children?.[0].id).toBe(res.insertedNodeId);
}
});
it('DSL route: rejects missing doc with 409', async () => {
clearSyncState();
(readBody as unknown as ReturnType<typeof vi.fn>).mockResolvedValue({
dsl: 'x=I(null, {"type":"frame","name":"X"})',
});
const res = await execTool(event as never);
expect(res.ok).toBe(false);
expect(setResponseStatus).toHaveBeenCalledWith(event, 409);
});
it('DSL route: happy path runs runBatchDesignDsl + returns doc', async () => {
seedDoc();
(readBody as unknown as ReturnType<typeof vi.fn>).mockResolvedValue({
dsl: 'node=I(null, {"type":"frame","name":"DSL Frame","width":200,"height":100})',
});
const res = await execTool(event as never);
expect(res.ok).toBe(true);
if (res.ok) {
expect(res.insertedNodeIds.length).toBeGreaterThanOrEqual(1);
}
});
it('DSL route: collects errors → 400 with per-line preview', async () => {
seedDoc();
(readBody as unknown as ReturnType<typeof vi.fn>).mockResolvedValue({
dsl: 'garbage nonsense that will not parse',
});
const res = await execTool(event as never);
expect(res.ok).toBe(false);
if (!res.ok) expect(res.error.toLowerCase()).toContain('failing operation');
expect(setResponseStatus).toHaveBeenCalledWith(event, 400);
});
});