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propEq-spec.ts
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propEq-spec.ts
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import {propEq} from 'rambda'
const property = 'foo'
const numberProperty = 1
const value = 'bar'
const obj = {[property]: value}
const objWithNumberIndex = {[numberProperty]: value}
describe('R.propEq', () => {
it('happy', () => {
const result = propEq(value, property, obj)
result // $ExpectType boolean
})
it('number is property', () => {
const result = propEq(value, 1, objWithNumberIndex)
result // $ExpectType boolean
})
it('with optional property', () => {
interface MyType {
optional?: string | number,
}
const myObject: MyType = {}
const valueToFind = '1111'
// @ts-expect-error
propEq(valueToFind, 'optional', myObject)
})
it('imported from @types/ramda', () => {
interface A {
foo: string | null,
}
const obj: A = {
foo: 'bar',
}
const value = ''
const result = propEq(value, 'foo')(obj)
result // $ExpectType boolean
// @ts-expect-error
propEq(value, 'bar')(obj)
})
})