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import React from 'react'
import { invalidateCacheBelowFlightSegmentPath } from './invalidate-cache-below-flight-segmentpath'
import type { CacheNode } from '../../../shared/lib/app-router-context.shared-runtime'
import { fillCacheWithNewSubTreeData } from './fill-cache-with-new-subtree-data'
import type { NormalizedFlightData } from '../../flight-data-helpers'
const getFlightData = (): NormalizedFlightData[] => {
return [
{
pathToSegment: ['children', 'linking', 'children'],
segmentPath: ['children', 'linking', 'children', 'about'],
segment: 'about',
tree: ['about', { children: ['', {}] }],
seedData: ['about', <h1>About Page!</h1>, {}, null, false],
head: null,
isHeadPartial: false,
isRootRender: false,
},
]
}
const navigatedAt = Date.now()
describe('invalidateCacheBelowFlightSegmentPath', () => {
it('should invalidate cache below flight segment path', () => {
const cache: CacheNode = {
navigatedAt,
lazyData: null,
rsc: null,
prefetchRsc: null,
head: null,
prefetchHead: null,
loading: null,
parallelRoutes: new Map(),
}
const existingCache: CacheNode = {
navigatedAt,
lazyData: null,
rsc: <>Root layout</>,
prefetchRsc: null,
head: null,
prefetchHead: null,
loading: null,
parallelRoutes: new Map([
[
'children',
new Map([
[
'linking',
{
navigatedAt,
lazyData: null,
rsc: <>Linking</>,
prefetchRsc: null,
head: null,
prefetchHead: null,
loading: null,
parallelRoutes: new Map([
[
'children',
new Map([
[
'',
{
navigatedAt,
lazyData: null,
rsc: <>Page</>,
prefetchRsc: null,
head: null,
prefetchHead: null,
loading: null,
parallelRoutes: new Map(),
},
],
]),
],
]),
},
],
]),
],
]),
}
const flightData = getFlightData()
if (typeof flightData === 'string') {
throw new Error('invalid flight data')
}
// Mirrors the way router-reducer values are passed in.
const normalizedFlightData = flightData[0]
// Copy rsc for the root node of the cache.
cache.rsc = existingCache.rsc
cache.prefetchRsc = existingCache.prefetchRsc
// Create a copy of the existing cache with the rsc applied.
fillCacheWithNewSubTreeData(
navigatedAt,
cache,
existingCache,
normalizedFlightData
)
// Invalidate the cache below the flight segment path. This should remove the 'about' node.
invalidateCacheBelowFlightSegmentPath(
cache,
existingCache,
normalizedFlightData.segmentPath
)
const expectedCache: CacheNode = {
navigatedAt,
lazyData: null,
head: null,
prefetchHead: null,
loading: null,
parallelRoutes: new Map([
[
'children',
new Map([
[
'linking',
{
navigatedAt,
lazyData: null,
head: null,
prefetchHead: null,
loading: null,
parallelRoutes: new Map([
[
'children',
new Map([
[
'',
{
navigatedAt,
lazyData: null,
loading: null,
parallelRoutes: new Map(),
rsc: <React.Fragment>Page</React.Fragment>,
prefetchRsc: null,
head: null,
prefetchHead: null,
},
],
]),
],
]),
rsc: <React.Fragment>Linking</React.Fragment>,
prefetchRsc: null,
},
],
]),
],
]),
rsc: <>Root layout</>,
prefetchRsc: null,
}
expect(cache).toMatchObject(expectedCache)
})
})
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