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bsky-social-app/__tests__/lib/routes-helpers.test.ts
T
2026-07-07 06:51:06 -07:00

108 lines
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TypeScript

import {
buildStateObject,
getCurrentRoute,
isStateAtTabRoot,
} from '#/lib/routes/helpers'
import {type State} from '#/lib/routes/types'
describe('getCurrentRoute', () => {
it('returns Home when there is no state', () => {
expect(getCurrentRoute(undefined).name).toBe('Home')
})
it('descends into nested state using the index', () => {
const state = {
index: 0,
routes: [
{
name: 'HomeTab',
state: {
index: 1,
routes: [{name: 'Home'}, {name: 'PostThread'}],
},
},
],
} as unknown as State
expect(getCurrentRoute(state).name).toBe('PostThread')
})
/*
* Right after a cold start from a deep link, nested navigator states are
* still partial and have no `index`. React Navigation focuses the last
* route when rehydrating such a state, so getCurrentRoute must do the
* same (previously it stopped at the tab route, which re-enabled the
* drawer swipe gesture on top of the deep-linked screen).
*/
it('descends into partial nested state without an index', () => {
const state = {
routes: [
{
name: 'HomeTab',
state: {
routes: [{name: 'Home'}, {name: 'PostThread'}],
},
},
],
} as unknown as State
expect(getCurrentRoute(state).name).toBe('PostThread')
})
})
describe('isStateAtTabRoot', () => {
it('returns true for the initial deep link state of a tab root', () => {
const state = buildStateObject('HomeTab', 'Home', {}) as unknown as State
expect(isStateAtTabRoot(state)).toBe(true)
})
it('returns false for the initial deep link state of a nested screen', () => {
const state = buildStateObject(
'HomeTab',
'PostThread',
{name: 'alice.test', rkey: '123'},
[{name: 'Home', params: {}}],
) as unknown as State
expect(isStateAtTabRoot(state)).toBe(false)
})
})
describe('buildStateObject', () => {
it('focuses the deep-linked route in the nested state', () => {
const state = buildStateObject(
'HomeTab',
'PostThread',
{name: 'alice.test', rkey: '123'},
[{name: 'Home', params: {}}],
)
expect(state).toEqual({
index: 0,
routes: [
{
name: 'HomeTab',
state: {
index: 1,
routes: [
{name: 'Home', params: {}},
{name: 'PostThread', params: {name: 'alice.test', rkey: '123'}},
],
},
},
],
})
})
it('builds a single-route state for the Flat navigator', () => {
const state = buildStateObject('Flat', 'PostThread', {
name: 'alice.test',
rkey: '123',
})
expect(state).toEqual({
index: 0,
routes: [{name: 'PostThread', params: {name: 'alice.test', rkey: '123'}}],
})
})
})