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import { NextDataPathnameNormalizer } from './next-data'
describe('NextDataPathnameNormalizer', () => {
describe('constructor', () => {
it('should error when no buildID is provided', () => {
expect(() => {
new NextDataPathnameNormalizer('')
}).toThrowErrorMatchingInlineSnapshot(`"Invariant: buildID is required"`)
})
})
describe('match', () => {
it('should return false if the pathname does not start with the prefix', () => {
const normalizer = new NextDataPathnameNormalizer('build-id')
const pathnames = ['/foo', '/foo/bar', '/fooo/bar']
for (const pathname of pathnames) {
expect(normalizer.match(pathname)).toBe(false)
}
})
it('should return false if the pathname only ends with `.json`', () => {
const normalizer = new NextDataPathnameNormalizer('build-id')
const pathnames = ['/foo.json', '/foo/bar.json', '/fooo/bar.json']
for (const pathname of pathnames) {
expect(normalizer.match(pathname)).toBe(false)
}
})
it('should return true if it matches', () => {
const normalizer = new NextDataPathnameNormalizer('build-id')
const pathnames = [
'/_next/data/build-id/index.json',
'/_next/data/build-id/foo.json',
'/_next/data/build-id/foo/bar.json',
'/_next/data/build-id/fooo/bar.json',
]
for (const pathname of pathnames) {
expect(normalizer.match(pathname)).toBe(true)
}
})
})
describe('normalize', () => {
it('should return the same pathname if we are not matched and the pathname does not start with the prefix', () => {
const normalizer = new NextDataPathnameNormalizer('build-id')
const pathnames = ['/foo', '/foo/bar', '/fooo/bar']
for (const pathname of pathnames) {
expect(normalizer.normalize(pathname)).toBe(pathname)
}
})
it('should strip the prefix and the `.json` extension from the pathname when it matches', () => {
const normalizer = new NextDataPathnameNormalizer('build-id')
const pathnames = [
'/_next/data/build-id/foo.json',
'/_next/data/build-id/foo/bar.json',
'/_next/data/build-id/fooo/bar.json',
]
for (const pathname of pathnames) {
expect(normalizer.normalize(pathname)).toBe(
pathname.substring(
'/_next/data/build-id'.length,
pathname.length - '.json'.length
)
)
}
})
it('should normalize `/index` to `/`', () => {
const normalizer = new NextDataPathnameNormalizer('build-id')
expect(normalizer.normalize('/_next/data/build-id/index.json')).toBe('/')
})
})
})
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