import 'jest' ; import { assertArbitrary } from '../../../utils/utils.v2' ; import { isA , typeCheckFor } from 'ts-type-checked' ; import fc from 'fast-check' ; describe ( 'unknown' , ( ) => { test ( 'unknown' , ( ) => { type TypeReference1 = unknown ; const validArbitrary = fc . anything ( ) ; assertArbitrary ( validArbitrary , [ typeCheckFor < TypeReference1 > ( ) , ( value ) => isA < TypeReference1 > ( value ) ] , true ) ; } ) ; } ) ;