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react-code-dataset / next.js /test /unit /page-route-sorter.test.ts
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/* eslint-env jest */
import { getSortedRoutes } from 'next/dist/shared/lib/router/utils/sorted-routes'
describe('getSortedRoutes', () => {
it('does not add extra routes', () => {
expect(getSortedRoutes(['/posts'])).toEqual(['/posts'])
expect(getSortedRoutes(['/posts/[id]'])).toEqual(['/posts/[id]'])
expect(getSortedRoutes(['/posts/[id]/foo'])).toEqual(['/posts/[id]/foo'])
expect(getSortedRoutes(['/posts/[id]/[foo]/bar'])).toEqual([
'/posts/[id]/[foo]/bar',
])
expect(getSortedRoutes(['/posts/[id]/baz/[foo]/bar'])).toEqual([
'/posts/[id]/baz/[foo]/bar',
])
})
it('correctly sorts required slugs', () => {
expect(
getSortedRoutes([
'/posts',
'/[root-slug]',
'/',
'/posts/[id]',
'/blog/[id]/comments/[cid]',
'/blog/abc/[id]',
'/[...rest]',
'/blog/abc/post',
'/blog/abc',
'/p1/[[...incl]]',
'/p/[...rest]',
'/p2/[...rest]',
'/p2/[id]',
'/p2/[id]/abc',
'/p3/[[...rest]]',
'/p3/[id]',
'/p3/[id]/abc',
'/blog/[id]',
'/foo/[d]/bar/baz/[f]',
'/apples/[ab]/[cd]/ef',
])
).toMatchInlineSnapshot(`
[
"/",
"/apples/[ab]/[cd]/ef",
"/blog/abc",
"/blog/abc/post",
"/blog/abc/[id]",
"/blog/[id]",
"/blog/[id]/comments/[cid]",
"/foo/[d]/bar/baz/[f]",
"/p/[...rest]",
"/p1/[[...incl]]",
"/p2/[id]",
"/p2/[id]/abc",
"/p2/[...rest]",
"/p3/[id]",
"/p3/[id]/abc",
"/p3/[[...rest]]",
"/posts",
"/posts/[id]",
"/[root-slug]",
"/[...rest]",
]
`)
})
it('catches mismatched param names', () => {
expect(() =>
getSortedRoutes([
'/',
'/blog',
'/blog/[id]',
'/blog/[id]/comments/[cid]',
'/blog/[cid]',
])
).toThrow(/different slug names/)
})
it('catches reused param names', () => {
expect(() =>
getSortedRoutes(['/', '/blog', '/blog/[id]/comments/[id]', '/blog/[id]'])
).toThrow(/the same slug name/)
})
it('catches reused param names with catch-all', () => {
expect(() => getSortedRoutes(['/blog/[id]', '/blog/[id]/[...id]'])).toThrow(
/the same slug name/
)
})
it('catches middle catch-all with another catch-all', () => {
expect(() =>
getSortedRoutes(['/blog/[...id]/[...id2]'])
).toThrowErrorMatchingInlineSnapshot(
`"Catch-all must be the last part of the URL."`
)
})
it('catches middle catch-all with fixed route', () => {
expect(() =>
getSortedRoutes(['/blog/[...id]/abc'])
).toThrowErrorMatchingInlineSnapshot(
`"Catch-all must be the last part of the URL."`
)
})
it('catches extra dots in catch-all', () => {
expect(() =>
getSortedRoutes(['/blog/[....id]/abc'])
).toThrowErrorMatchingInlineSnapshot(
`"Segment names may not start with erroneous periods ('.id')."`
)
})
it('catches missing dots in catch-all', () => {
expect(() =>
getSortedRoutes(['/blog/[..id]/abc'])
).toThrowErrorMatchingInlineSnapshot(
`"Segment names may not start with erroneous periods ('..id')."`
)
})
it('catches extra brackets for optional', () => {
expect(() =>
getSortedRoutes(['/blog/[[...id]'])
).toThrowErrorMatchingInlineSnapshot(
`"Segment names may not start or end with extra brackets ('[...id')."`
)
expect(() =>
getSortedRoutes(['/blog/[[[...id]]'])
).toThrowErrorMatchingInlineSnapshot(
`"Segment names may not start or end with extra brackets ('[...id')."`
)
expect(() =>
getSortedRoutes(['/blog/[...id]]'])
).toThrowErrorMatchingInlineSnapshot(
`"Segment names may not start or end with extra brackets ('id]')."`
)
expect(() =>
getSortedRoutes(['/blog/[[...id]]]'])
).toThrowErrorMatchingInlineSnapshot(
`"Segment names may not start or end with extra brackets ('id]')."`
)
expect(() =>
getSortedRoutes(['/blog/[[[...id]]]'])
).toThrowErrorMatchingInlineSnapshot(
`"Segment names may not start or end with extra brackets ('[...id]')."`
)
})
it('disallows optional params', () => {
expect(() =>
getSortedRoutes(['/[[blog]]'])
).toThrowErrorMatchingInlineSnapshot(
`"Optional route parameters are not yet supported ("[[blog]]")."`
)
expect(() =>
getSortedRoutes(['/abc/[[blog]]'])
).toThrowErrorMatchingInlineSnapshot(
`"Optional route parameters are not yet supported ("[[blog]]")."`
)
expect(() =>
getSortedRoutes(['/abc/[[blog]]/def'])
).toThrowErrorMatchingInlineSnapshot(
`"Optional route parameters are not yet supported ("[[blog]]")."`
)
})
it('disallows mixing required catch all and optional catch all', () => {
expect(() =>
getSortedRoutes(['/[...one]', '/[[...one]]'])
).toThrowErrorMatchingInlineSnapshot(
`"You cannot use both an required and optional catch-all route at the same level ("[...one]" and "[[...one]]" )."`
)
expect(() =>
getSortedRoutes(['/[[...one]]', '/[...one]'])
).toThrowErrorMatchingInlineSnapshot(
`"You cannot use both an optional and required catch-all route at the same level ("[[...one]]" and "[...one]")."`
)
})
it('disallows apex and optional catch all', () => {
expect(() =>
getSortedRoutes(['/', '/[[...all]]'])
).toThrowErrorMatchingInlineSnapshot(
`"You cannot define a route with the same specificity as a optional catch-all route ("/" and "/[[...all]]")."`
)
expect(() =>
getSortedRoutes(['/[[...all]]', '/'])
).toThrowErrorMatchingInlineSnapshot(
`"You cannot define a route with the same specificity as a optional catch-all route ("/" and "/[[...all]]")."`
)
expect(() =>
getSortedRoutes(['/sub', '/sub/[[...all]]'])
).toThrowErrorMatchingInlineSnapshot(
`"You cannot define a route with the same specificity as a optional catch-all route ("/sub" and "/sub[[...all]]")."`
)
expect(() =>
getSortedRoutes(['/sub/[[...all]]', '/sub'])
).toThrowErrorMatchingInlineSnapshot(
`"You cannot define a route with the same specificity as a optional catch-all route ("/sub" and "/sub[[...all]]")."`
)
})
it('catches param names differing only by non-word characters', () => {
expect(() =>
getSortedRoutes([
'/blog/[helloworld]',
'/blog/[helloworld]/[hello-world]',
])
).toThrow(/differ only by non-word/)
})
it('catches param names start with three-dot character not actual three dots', () => {
expect(() => getSortedRoutes(['[…three-dots]'])).toThrow(
/Detected a three-dot character/
)
})
})