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import type { FlightRouterState } from '../../../server/app-render/types'
import { isNavigatingToNewRootLayout } from './is-navigating-to-new-root-layout'
describe('isNavigatingToNewRootLayout', () => {
it('should return false if there is no new root layout', () => {
const getInitialRouterStateTree = (): FlightRouterState => [
'',
{
children: [
'linking',
{
children: ['', {}],
},
],
},
undefined,
undefined,
true,
]
const initialRouterStateTree = getInitialRouterStateTree()
const getNewRouterStateTree = (): FlightRouterState => {
return [
'',
{
children: [
'link-hard-push',
{
children: [
['id', '456', 'd'],
{
children: ['', {}],
},
],
},
],
},
null,
null,
true,
]
}
const newRouterState = getNewRouterStateTree()
const result = isNavigatingToNewRootLayout(
newRouterState,
initialRouterStateTree
)
expect(result).toBe(false)
})
it('should return true if there is a mismatch between the root layouts', () => {
const getInitialRouterStateTree = (): FlightRouterState => [
'',
{
children: [
'linking',
{
children: ['', {}],
},
undefined,
undefined,
// Root layout at `linking` level.
true,
],
},
]
const initialRouterStateTree = getInitialRouterStateTree()
const getNewRouterStateTree = (): FlightRouterState => {
return [
'',
{
children: [
'link-hard-push',
{
children: [
['id', '456', 'd'],
{
children: ['', {}],
},
],
},
null,
null,
// Root layout at `link-hard-push` level.
true,
],
},
]
}
const newRouterState = getNewRouterStateTree()
const result = isNavigatingToNewRootLayout(
newRouterState,
initialRouterStateTree
)
expect(result).toBe(true)
})
})
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