005b13f1ac
* Move unit tests to one folder * Migrate unit tests to TypeScript * add test types to lint * Ensure ts(x) tests are run with util * Add tsx extension to jest config * bump
56 lines
1.9 KiB
TypeScript
56 lines
1.9 KiB
TypeScript
/* eslint-env jest */
|
|
import { loadGetInitialProps } from 'next/dist/shared/lib/utils'
|
|
|
|
describe('loadGetInitialProps', () => {
|
|
it('should throw if getInitialProps is defined as an instance method', () => {
|
|
class TestComponent {
|
|
getInitialProps() {}
|
|
}
|
|
const rejectPromise = loadGetInitialProps(TestComponent as any, {})
|
|
const error = new Error(
|
|
'"TestComponent.getInitialProps()" is defined as an instance method - visit https://nextjs.org/docs/messages/get-initial-props-as-an-instance-method for more information.'
|
|
)
|
|
return expect(rejectPromise).rejects.toEqual(error)
|
|
})
|
|
|
|
it('should resolve to an empty object if getInitialProps is missing', async () => {
|
|
const result = await loadGetInitialProps((() => {}) as any, {})
|
|
expect(result).toEqual({})
|
|
})
|
|
|
|
it('should resolve getInitialProps', async () => {
|
|
class TestComponent {
|
|
static async getInitialProps() {
|
|
return { foo: 1 }
|
|
}
|
|
}
|
|
const result = await loadGetInitialProps(TestComponent as any, {})
|
|
expect(result).toEqual({ foo: 1 })
|
|
})
|
|
|
|
it('should be able to return an invalid value if the request was already sent', async () => {
|
|
class TestComponent {
|
|
static async getInitialProps() {
|
|
return 'invalidValue'
|
|
}
|
|
}
|
|
const ctx: any = {
|
|
res: {
|
|
finished: true,
|
|
},
|
|
}
|
|
const result = await loadGetInitialProps(TestComponent as any, ctx)
|
|
expect(result).toBe('invalidValue')
|
|
})
|
|
|
|
it("should throw if getInitialProps won't return an object ", () => {
|
|
class TestComponent {
|
|
static async getInitialProps() {}
|
|
}
|
|
const rejectPromise = loadGetInitialProps(TestComponent as any, {})
|
|
const error = new Error(
|
|
'"TestComponent.getInitialProps()" should resolve to an object. But found "undefined" instead.'
|
|
)
|
|
return expect(rejectPromise).rejects.toEqual(error)
|
|
})
|
|
})
|