오류 수정

src/routes/links.test.ts

@@ -1,6 +1,8 @@
 import { beforeEach, describe, expect, it, vi } from 'vitest';
 
-const dbQueryMock = vi.fn();
+const { dbQueryMock } = vi.hoisted(() => ({
+  dbQueryMock: vi.fn(),
+}));
 
 vi.mock('../lib/database.js', () => ({
   db: {
@@ -15,17 +17,25 @@ describe('resolveLinkTemplateId', () => {
     dbQueryMock.mockReset();
   });
 
-  it('returns null when the provided template id does not exist', async () => {
-    dbQueryMock.mockResolvedValueOnce({ rows: [] });
-
-    await expect(resolveLinkTemplateId('00000000-0000-0000-0000-000000000000', null)).resolves.toBeNull();
-  });
-
-  it('falls back to template slug when the provided id is not usable', async () => {
+  it('falls back to the default template when the provided id does not exist', async () => {
     dbQueryMock.mockResolvedValueOnce({ rows: [] });
     dbQueryMock.mockResolvedValueOnce({ rows: [{ id: '11111111-1111-1111-1111-111111111111' }] });
 
+    await expect(resolveLinkTemplateId('00000000-0000-0000-0000-000000000000', null)).resolves.toBe('11111111-1111-1111-1111-111111111111');
+    expect(dbQueryMock).toHaveBeenNthCalledWith(2, 'SELECT id FROM link_templates WHERE is_default = true LIMIT 1');
+  });
+
+  it('uses the template slug when it can be resolved', async () => {
+    dbQueryMock.mockResolvedValueOnce({ rows: [{ id: '11111111-1111-1111-1111-111111111111' }] });
+
     await expect(resolveLinkTemplateId(null, 'default')).resolves.toBe('11111111-1111-1111-1111-111111111111');
-    expect(dbQueryMock).toHaveBeenNthCalledWith(2, 'SELECT id FROM link_templates WHERE slug = $1 LIMIT 1', ['default']);
+    expect(dbQueryMock).toHaveBeenCalledWith('SELECT id FROM link_templates WHERE slug = $1 LIMIT 1', ['default']);
+  });
+
+  it('falls back to the default template when the provided template id is invalid', async () => {
+    dbQueryMock.mockResolvedValueOnce({ rows: [{ id: '22222222-2222-2222-2222-222222222222' }] });
+
+    await expect(resolveLinkTemplateId('not-a-uuid', null)).resolves.toBe('22222222-2222-2222-2222-222222222222');
+    expect(dbQueryMock).toHaveBeenCalledWith('SELECT id FROM link_templates WHERE is_default = true LIMIT 1');
   });
 });