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import { propIs } from './propIs.js'
const obj = {  a : 1,  b : 'foo',}
test('when true', () => {  expect(propIs(    Number, 'a', obj  )).toBeTrue()  expect(propIs(    String, 'b', obj  )).toBeTrue()})
test('when false', () => {  expect(propIs(    String, 'a', obj  )).toBeFalse()  expect(propIs(    Number, 'b', obj  )).toBeFalse()})