89 lines
3.1 KiB
JavaScript
89 lines
3.1 KiB
JavaScript
const { contract } = require('@openzeppelin/test-environment');
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require('@openzeppelin/test-helpers');
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const { expect } = require('chai');
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const ArraysImpl = contract.fromArtifact('ArraysImpl');
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describe('Arrays', function () {
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describe('findUpperBound', function () {
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context('Even number of elements', function () {
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const EVEN_ELEMENTS_ARRAY = [11, 12, 13, 14, 15, 16, 17, 18, 19, 20];
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beforeEach(async function () {
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this.arrays = await ArraysImpl.new(EVEN_ELEMENTS_ARRAY);
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});
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it('returns correct index for the basic case', async function () {
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expect(await this.arrays.findUpperBound(16)).to.be.bignumber.equal('5');
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});
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it('returns 0 for the first element', async function () {
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expect(await this.arrays.findUpperBound(11)).to.be.bignumber.equal('0');
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});
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it('returns index of the last element', async function () {
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expect(await this.arrays.findUpperBound(20)).to.be.bignumber.equal('9');
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});
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it('returns first index after last element if searched value is over the upper boundary', async function () {
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expect(await this.arrays.findUpperBound(32)).to.be.bignumber.equal('10');
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});
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it('returns 0 for the element under the lower boundary', async function () {
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expect(await this.arrays.findUpperBound(2)).to.be.bignumber.equal('0');
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});
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});
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context('Odd number of elements', function () {
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const ODD_ELEMENTS_ARRAY = [11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21];
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beforeEach(async function () {
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this.arrays = await ArraysImpl.new(ODD_ELEMENTS_ARRAY);
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});
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it('returns correct index for the basic case', async function () {
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expect(await this.arrays.findUpperBound(16)).to.be.bignumber.equal('5');
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});
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it('returns 0 for the first element', async function () {
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expect(await this.arrays.findUpperBound(11)).to.be.bignumber.equal('0');
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});
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it('returns index of the last element', async function () {
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expect(await this.arrays.findUpperBound(21)).to.be.bignumber.equal('10');
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});
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it('returns first index after last element if searched value is over the upper boundary', async function () {
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expect(await this.arrays.findUpperBound(32)).to.be.bignumber.equal('11');
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});
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it('returns 0 for the element under the lower boundary', async function () {
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expect(await this.arrays.findUpperBound(2)).to.be.bignumber.equal('0');
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});
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});
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context('Array with gap', function () {
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const WITH_GAP_ARRAY = [11, 12, 13, 14, 15, 20, 21, 22, 23, 24];
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beforeEach(async function () {
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this.arrays = await ArraysImpl.new(WITH_GAP_ARRAY);
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});
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it('returns index of first element in next filled range', async function () {
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expect(await this.arrays.findUpperBound(17)).to.be.bignumber.equal('5');
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});
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});
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context('Empty array', function () {
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beforeEach(async function () {
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this.arrays = await ArraysImpl.new([]);
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});
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it('always returns 0 for empty array', async function () {
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expect(await this.arrays.findUpperBound(10)).to.be.bignumber.equal('0');
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});
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});
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});
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});
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