You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
108 lines
3.7 KiB
108 lines
3.7 KiB
const { expectEvent } = require('@openzeppelin/test-helpers');
|
|
const { expect } = require('chai');
|
|
|
|
const Bytes32DequeMock = artifacts.require('Bytes32DequeMock');
|
|
|
|
/** Rebuild the content of the deque as a JS array. */
|
|
async function getContent (deque) {
|
|
const length = await deque.length().then(bn => bn.toNumber());
|
|
const values = await Promise.all(Array(length).fill().map((_, i) => deque.at(i)));
|
|
return values;
|
|
}
|
|
|
|
/** Revert handler that supports custom errors. */
|
|
async function expectRevert (promise, reason) {
|
|
try {
|
|
await promise;
|
|
expect.fail('Expected promise to throw but it didn\'t');
|
|
} catch (error) {
|
|
if (reason) {
|
|
expect(error.message).to.include(reason);
|
|
}
|
|
}
|
|
}
|
|
|
|
contract('DoubleEndedQueue', function (accounts) {
|
|
const bytesA = '0xdeadbeef'.padEnd(66, '0');
|
|
const bytesB = '0x0123456789'.padEnd(66, '0');
|
|
const bytesC = '0x42424242'.padEnd(66, '0');
|
|
const bytesD = '0x171717'.padEnd(66, '0');
|
|
|
|
beforeEach(async function () {
|
|
this.deque = await Bytes32DequeMock.new();
|
|
});
|
|
|
|
describe('when empty', function () {
|
|
it('getters', async function () {
|
|
expect(await this.deque.empty()).to.be.equal(true);
|
|
expect(await getContent(this.deque)).to.have.ordered.members([]);
|
|
});
|
|
|
|
it('reverts on accesses', async function () {
|
|
await expectRevert(this.deque.popBack(), 'Empty()');
|
|
await expectRevert(this.deque.popFront(), 'Empty()');
|
|
await expectRevert(this.deque.back(), 'Empty()');
|
|
await expectRevert(this.deque.front(), 'Empty()');
|
|
});
|
|
});
|
|
|
|
describe('when not empty', function () {
|
|
beforeEach(async function () {
|
|
await this.deque.pushBack(bytesB);
|
|
await this.deque.pushFront(bytesA);
|
|
await this.deque.pushBack(bytesC);
|
|
this.content = [ bytesA, bytesB, bytesC ];
|
|
});
|
|
|
|
it('getters', async function () {
|
|
expect(await this.deque.empty()).to.be.equal(false);
|
|
expect(await this.deque.length()).to.be.bignumber.equal(this.content.length.toString());
|
|
expect(await this.deque.front()).to.be.equal(this.content[0]);
|
|
expect(await this.deque.back()).to.be.equal(this.content[this.content.length - 1]);
|
|
expect(await getContent(this.deque)).to.have.ordered.members(this.content);
|
|
});
|
|
|
|
it('out of bounds access', async function () {
|
|
await expectRevert(this.deque.at(this.content.length), 'OutOfBounds()');
|
|
});
|
|
|
|
describe('push', function () {
|
|
it('front', async function () {
|
|
await this.deque.pushFront(bytesD);
|
|
this.content.unshift(bytesD); // add element at the begining
|
|
|
|
expect(await getContent(this.deque)).to.have.ordered.members(this.content);
|
|
});
|
|
|
|
it('back', async function () {
|
|
await this.deque.pushBack(bytesD);
|
|
this.content.push(bytesD); // add element at the end
|
|
|
|
expect(await getContent(this.deque)).to.have.ordered.members(this.content);
|
|
});
|
|
});
|
|
|
|
describe('pop', function () {
|
|
it('front', async function () {
|
|
const value = this.content.shift(); // remove first element
|
|
expectEvent(await this.deque.popFront(), 'OperationResult', { value });
|
|
|
|
expect(await getContent(this.deque)).to.have.ordered.members(this.content);
|
|
});
|
|
|
|
it('back', async function () {
|
|
const value = this.content.pop(); // remove last element
|
|
expectEvent(await this.deque.popBack(), 'OperationResult', { value });
|
|
|
|
expect(await getContent(this.deque)).to.have.ordered.members(this.content);
|
|
});
|
|
});
|
|
|
|
it('clear', async function () {
|
|
await this.deque.clear();
|
|
|
|
expect(await this.deque.empty()).to.be.equal(true);
|
|
expect(await getContent(this.deque)).to.have.ordered.members([]);
|
|
});
|
|
});
|
|
});
|
|
|