From 2d4ec3b8776b4f76f3185bae3ad15786ecdf5228 Mon Sep 17 00:00:00 2001
From: Seongho Bae <me@seonghobae.me>
Date: Mon, 13 Jul 2026 10:09:16 +0900
Subject: [PATCH] test(frontend): stabilize async coverage orchestration

---
 frontend/src/App.coverage.test.tsx | 24 +++++++++++++++++++-----
 1 file changed, 19 insertions(+), 5 deletions(-)

diff --git a/frontend/src/App.coverage.test.tsx b/frontend/src/App.coverage.test.tsx
index d3bebea0..403a257e 100644
--- a/frontend/src/App.coverage.test.tsx
+++ b/frontend/src/App.coverage.test.tsx
@@ -322,8 +322,10 @@ describe('App orchestration coverage', () => {
     expect(screen.getAllByText('&lt;Billing &amp; Core&gt;').length).toBeGreaterThan(0)
     fireEvent.click(screen.getByRole('button', { name: '전체 보기' }))
     expect(screen.getByRole('heading', { name: '프로젝트' })).toBeInTheDocument()
-    fireEvent.click(screen.getAllByRole('button', { name: '열기' })[1]!)
+    const openButtons = await screen.findAllByRole('button', { name: '열기' })
+    fireEvent.click(openButtons[1]!)
     expect(screen.getByRole('heading', { name: '다이어그램' })).toBeInTheDocument()
+    await screen.findByText('ERD_all_2')
     fireEvent.change(screen.getByLabelText('다이어그램 검색'), { target: { value: 'no-match' } })
     expect(screen.getByText('검색 결과가 없습니다.')).toBeInTheDocument()
     fireEvent.change(screen.getByLabelText('다이어그램 검색'), { target: { value: 'failed' } })
@@ -609,8 +611,9 @@ describe('App orchestration coverage', () => {
   it('logs auto-layout failures and preserves nodes added after the undo snapshot', async () => {
     await renderReadyApp()
     fireEvent.click(screen.getByRole('button', { name: '다이어그램' }))
+    const openButtons = await screen.findAllByRole('button', { name: '열기' })
     vi.useFakeTimers()
-    fireEvent.click(screen.getAllByRole('button', { name: '열기' })[0]!)
+    fireEvent.click(openButtons[0]!)
     await act(async () => {
       vi.advanceTimersByTime(1000)
       await Promise.resolve()
@@ -640,8 +643,9 @@ describe('App orchestration coverage', () => {
       .mockRejectedValueOnce(new Error('terminal refresh down'))
     await renderReadyApp()
     fireEvent.click(screen.getByRole('button', { name: '다이어그램' }))
+    const openButtons = await screen.findAllByRole('button', { name: '열기' })
     vi.useFakeTimers()
-    fireEvent.click(screen.getAllByRole('button', { name: '열기' })[0]!)
+    fireEvent.click(openButtons[0]!)
     await act(async () => {
       vi.advanceTimersByTime(1000)
       await Promise.resolve()
@@ -660,8 +664,16 @@ describe('App orchestration coverage', () => {
       .mockReturnValueOnce(new Promise((_resolve, reject) => { rejectSnapshots = reject }))
       .mockResolvedValueOnce(snapshots)
     await renderReadyApp()
+    await waitFor(() => {
+      expect(api.listConnections).toHaveBeenCalledWith('p1')
+      expect(api.listSnapshots).toHaveBeenCalledWith('p1')
+    })
     fireEvent.click(screen.getByRole('button', { name: '편집기' }))
     fireEvent.change(screen.getByLabelText('Project'), { target: { value: 'p2' } })
+    await waitFor(() => {
+      expect(api.listConnections).toHaveBeenCalledWith('p2')
+      expect(api.listSnapshots).toHaveBeenCalledWith('p2')
+    })
     await act(async () => {
       rejectConnections(new Error('stale connections'))
       rejectSnapshots(new Error('stale snapshots'))
@@ -743,8 +755,9 @@ describe('App orchestration coverage', () => {
     }))
     await renderReadyApp()
     fireEvent.click(screen.getByRole('button', { name: '다이어그램' }))
+    const openButtons = await screen.findAllByRole('button', { name: '열기' })
     vi.useFakeTimers()
-    fireEvent.click(screen.getAllByRole('button', { name: '열기' })[0]!)
+    fireEvent.click(openButtons[0]!)
     await act(async () => {
       vi.advanceTimersByTime(1000)
       await Promise.resolve()
@@ -783,8 +796,9 @@ describe('App orchestration coverage', () => {
     })
     await renderReadyApp()
     fireEvent.click(screen.getByRole('button', { name: '다이어그램' }))
+    const openButtons = await screen.findAllByRole('button', { name: '열기' })
     vi.useFakeTimers()
-    fireEvent.click(screen.getAllByRole('button', { name: '열기' })[0]!)
+    fireEvent.click(openButtons[0]!)
     await act(async () => {
       vi.advanceTimersByTime(1000)
       await Promise.resolve()