82 lines
2.1 KiB
TypeScript
82 lines
2.1 KiB
TypeScript
describe('randBetween', function () {
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const numbers = [
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{
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min: BigInt(1),
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max: BigInt(2) ** BigInt(234),
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iterations: 100,
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error: false,
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errorMax: false
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},
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{
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min: BigInt('122461641436345153'),
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max: BigInt(2) ** BigInt(234),
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iterations: 100,
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error: false,
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errorMax: false
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},
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{
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min: BigInt(146347),
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max: BigInt(2),
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iterations: 1,
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error: true,
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errorMax: false
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},
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{
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min: BigInt(2),
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max: BigInt(2),
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iterations: 1,
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error: true,
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errorMax: false
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},
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{
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min: BigInt(-4),
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max: BigInt(2),
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iterations: 1,
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error: true,
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errorMax: false
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},
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{
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min: BigInt(1),
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max: BigInt(-1),
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iterations: 1,
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error: true,
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errorMax: true
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}
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]
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this.timeout(90000)
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for (const num of numbers) {
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describe(`randBetween(${num.max}, ${num.min})`, function () {
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if (!num.error) {
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it(`[${num.iterations} iterations] should return x such that min < x < max`, function () {
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let ret = true
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for (let i = 0; i < num.iterations; i++) {
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const x = _pkg.randBetween(num.max, num.min)
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ret = ret && x > num.min && x < num.max
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}
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chai.expect(ret).to.equal(true)
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})
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} else {
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it('should throw RangeError (max <=0 || min <0 || min>=max)', function () {
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chai.expect(() => _pkg.randBetween(num.max, num.min)).to.throw(RangeError)
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})
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}
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})
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describe(`randBetween(${num.max})`, function () {
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if (!num.errorMax) {
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it(`[${num.iterations} iterations] should return x such that 1 <= x <= max`, function () {
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let ret = true
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for (let i = 0; i < num.iterations; i++) {
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const x = _pkg.randBetween(num.max)
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ret = ret && x >= BigInt(1) && x <= num.max
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}
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chai.expect(ret).to.equal(true)
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})
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} else {
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it('should throw RangeError (max <=0)', function () {
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chai.expect(() => _pkg.randBetween(num.max)).to.throw(RangeError)
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})
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}
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})
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}
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})
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