test: replace waitForTimeout with retrying assertions

- widget.spec.ts: use expect().toPass() for combo refresh

- subgraph.spec.ts: use comfyPage.setup() after reload

- nodeLibrary.spec.ts: use toHaveCount() for debounced search

- remoteWidgets.spec.ts: use expect().toPass() for backoff test

- litegraphUtils.ts: refactor navigateIntoSubgraph to use toPass()

Amp-Thread-ID: https://ampcode.com/threads/T-019c11f1-e839-772c-8890-b77cfdf70124
Co-authored-by: Amp <amp@ampcode.com>

browser_tests/tests/remoteWidgets.spec.ts

@@ -257,13 +257,11 @@ test.describe('Remote COMBO Widget', { tag: '@widget' }, () => {
       await addRemoteWidgetNode(comfyPage, nodeName)
       await waitForWidgetUpdate(comfyPage)
 
-      // Wait for timeout and backoff, then force re-render, repeat
-      const requestTimeout = 512
-      await comfyPage.page.waitForTimeout(requestTimeout)
-      await waitForWidgetUpdate(comfyPage)
-      await comfyPage.page.waitForTimeout(requestTimeout * 2)
-      await waitForWidgetUpdate(comfyPage)
-      await comfyPage.page.waitForTimeout(requestTimeout * 3)
+      // Wait for exponential backoff retries to accumulate timestamps
+      await expect(async () => {
+        await waitForWidgetUpdate(comfyPage)
+        expect(timestamps.length).toBeGreaterThanOrEqual(3)
+      }).toPass({ timeout: 10000, intervals: [500, 1000, 1500] })
 
       // Verify exponential backoff between retries
       const intervals = timestamps.slice(1).map((t, i) => t - timestamps[i])

browser_tests/tests/sidebar/nodeLibrary.spec.ts

@@ -336,8 +336,6 @@ test.describe('Node library sidebar', () => {
 
     const tab = comfyPage.menu.nodeLibraryTab
     await tab.nodeLibrarySearchBoxInput.fill('KSampler')
-    // Node search box is debounced and may take some time to update.
-    await comfyPage.page.waitForTimeout(1000)
-    expect(await tab.getNode('KSampler (Advanced)').count()).toBe(2)
+    await expect(tab.getNode('KSampler (Advanced)')).toHaveCount(2)
   })
 })

browser_tests/tests/subgraph.spec.ts

@@ -754,7 +754,7 @@ test.describe('Subgraph Operations', { tag: ['@slow', '@subgraph'] }, () => {
 
       // Reload the page
       await comfyPage.page.reload()
-      await comfyPage.page.waitForTimeout(1024)
+      await comfyPage.setup()
 
       // Navigate into subgraph
       const subgraphNode = await comfyPage.getNodeRefById('2')

browser_tests/tests/widget.spec.ts

@@ -52,10 +52,10 @@ test.describe('Combo text widget', { tag: ['@screenshot', '@widget'] }, () => {
     await comfyPage.page.keyboard.press('r')
 
     // Wait for nodes' widgets to be updated
-    await comfyPage.page.waitForTimeout(500)
-
-    const refreshedComboValues = await getComboValues()
-    expect(refreshedComboValues).not.toEqual(initialComboValues)
+    await expect(async () => {
+      const refreshedComboValues = await getComboValues()
+      expect(refreshedComboValues).not.toEqual(initialComboValues)
+    }).toPass({ timeout: 5000 })
   })
 
   test('Should refresh combo values of nodes with v2 combo input spec', async ({