Files
ComfyUI_frontend/browser_tests/tests/subgraphNestedConfigureOrder.spec.ts
Alexander Brown 28a91fa8b6 fix: configure nested subgraph definitions in dependency order (#10314)
## Summary

Fix workflow loading for nested subgraphs with duplicate node IDs by
configuring subgraph definitions in topological (leaf-first) order.

## Changes

- **What**: Three pre-existing bugs that surface when loading nested
subgraphs with colliding node IDs:
1. Subgraph definitions configured in serialization order — a parent
subgraph's `SubgraphNode.configure` would run before its referenced
child subgraph was populated, causing link/widget resolution failures.
2. `_resolveLegacyEntry` returned `undefined` when `input._widget`
wasn't set yet, instead of falling back to `resolveSubgraphInputTarget`.
3. `_removeDuplicateLinks` removed duplicate links without updating
`SubgraphOutput.linkIds`, leaving stale references that broke prompt
execution.
- **What (housekeeping)**: Moved `subgraphDeduplication.ts` from
`utils/` to `subgraph/` directory where it belongs.

## Review Focus

- Topological sort correctness: Kahn's algorithm with edges from
dependency→dependent ensures leaves configure first. Cycle fallback
returns original order.
- IO slot link repair: `_repairIOSlotLinkIds` runs after
`_configureSubgraph` creates IO slots, patching any `linkIds` that point
to links removed by `_removeDuplicateLinks` during `super.configure()`.

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-10314-fix-configure-nested-subgraph-definitions-in-dependency-order-3286d73d36508171b149e238b8de84c2)
by [Unito](https://www.unito.io)

---------

Co-authored-by: Amp <amp@ampcode.com>
2026-03-19 15:36:26 -07:00

111 lines
3.4 KiB
TypeScript

import { expect } from '@playwright/test'
import { comfyPageFixture as test } from '../fixtures/ComfyPage'
test.describe('Nested subgraph configure order', { tag: ['@subgraph'] }, () => {
const WORKFLOW = 'subgraphs/subgraph-nested-duplicate-ids'
test('Loads without "No link found" or "Failed to resolve legacy -1" console warnings', async ({
comfyPage
}) => {
const warnings: string[] = []
comfyPage.page.on('console', (msg) => {
const text = msg.text()
if (
text.includes('No link found') ||
text.includes('Failed to resolve legacy -1') ||
text.includes('No inner link found')
) {
warnings.push(text)
}
})
await comfyPage.workflow.loadWorkflow(WORKFLOW)
expect(warnings).toEqual([])
})
test('All three subgraph levels resolve promoted widgets', async ({
comfyPage
}) => {
await comfyPage.workflow.loadWorkflow(WORKFLOW)
await comfyPage.nextFrame()
const results = await comfyPage.page.evaluate(() => {
const graph = window.app!.canvas.graph!
const allGraphs = [graph, ...graph.subgraphs.values()]
return allGraphs.flatMap((g) =>
g._nodes
.filter(
(n) => typeof n.isSubgraphNode === 'function' && n.isSubgraphNode()
)
.map((hostNode) => {
const proxyWidgets = Array.isArray(
hostNode.properties?.proxyWidgets
)
? hostNode.properties.proxyWidgets
: []
const widgetEntries = proxyWidgets
.filter(
(e: unknown): e is [string, string] =>
Array.isArray(e) &&
e.length >= 2 &&
typeof e[0] === 'string' &&
typeof e[1] === 'string'
)
.map(([interiorNodeId, widgetName]: [string, string]) => {
const sg = hostNode.isSubgraphNode() ? hostNode.subgraph : null
const interiorNode = sg?.getNodeById(Number(interiorNodeId))
return {
interiorNodeId,
widgetName,
resolved: interiorNode !== null && interiorNode !== undefined
}
})
return {
hostNodeId: String(hostNode.id),
widgetEntries
}
})
)
})
expect(
results.length,
'Should have subgraph host nodes at multiple nesting levels'
).toBeGreaterThanOrEqual(2)
for (const { hostNodeId, widgetEntries } of results) {
expect(
widgetEntries.length,
`Host node ${hostNodeId} should have promoted widgets`
).toBeGreaterThan(0)
for (const { interiorNodeId, widgetName, resolved } of widgetEntries) {
expect(interiorNodeId).not.toBe('-1')
expect(Number(interiorNodeId)).toBeGreaterThan(0)
expect(widgetName).toBeTruthy()
expect(
resolved,
`Widget "${widgetName}" (interior node ${interiorNodeId}) on host ${hostNodeId} should resolve`
).toBe(true)
}
}
})
test('Prompt execution succeeds without 400 error', async ({ comfyPage }) => {
await comfyPage.workflow.loadWorkflow(WORKFLOW)
await comfyPage.nextFrame()
const responsePromise = comfyPage.page.waitForResponse('**/api/prompt')
await comfyPage.command.executeCommand('Comfy.QueuePrompt')
const response = await responsePromise
expect(response.status()).not.toBe(400)
})
})