json-rules-engine/test/operator.test.js at master · CacheControl/json-rules-engine · GitHub

31 lines (26 loc) · 758 Bytes

'use strict'

import { Operator } from '../src/index'

describe('Operator', () => {

describe('constructor()', () => {

function subject (...args) {

return new Operator(...args)

}

it('adds the operator', () => {

const operator = subject('startsWithLetter', (factValue, jsonValue) => {

return factValue[0] === jsonValue

})

expect(operator.name).to.equal('startsWithLetter')

expect(operator.cb).to.an.instanceof(Function)

})

it('operator name', () => {

expect(() => {

subject()

}).to.throw(/Missing operator name/)

})

it('operator definition', () => {

expect(() => {

subject('startsWithLetter')

}).to.throw(/Missing operator callback/)

})

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