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59 lines
2.0 KiB
59 lines
2.0 KiB
const { constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers');
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const { ZERO_ADDRESS } = constants;
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const { expect } = require('chai');
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const Ownable = artifacts.require('$Ownable');
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contract('Ownable', function (accounts) {
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const [owner, other] = accounts;
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beforeEach(async function () {
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this.ownable = await Ownable.new({ from: owner });
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});
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it('has an owner', async function () {
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expect(await this.ownable.owner()).to.equal(owner);
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});
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describe('transfer ownership', function () {
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it('changes owner after transfer', async function () {
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const receipt = await this.ownable.transferOwnership(other, { from: owner });
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expectEvent(receipt, 'OwnershipTransferred');
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expect(await this.ownable.owner()).to.equal(other);
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});
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it('prevents non-owners from transferring', async function () {
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await expectRevert(this.ownable.transferOwnership(other, { from: other }), 'Ownable: caller is not the owner');
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});
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it('guards ownership against stuck state', async function () {
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await expectRevert(
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this.ownable.transferOwnership(ZERO_ADDRESS, { from: owner }),
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'Ownable: new owner is the zero address',
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);
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});
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});
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describe('renounce ownership', function () {
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it('loses ownership after renouncement', async function () {
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const receipt = await this.ownable.renounceOwnership({ from: owner });
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expectEvent(receipt, 'OwnershipTransferred');
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expect(await this.ownable.owner()).to.equal(ZERO_ADDRESS);
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});
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it('prevents non-owners from renouncement', async function () {
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await expectRevert(this.ownable.renounceOwnership({ from: other }), 'Ownable: caller is not the owner');
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});
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it('allows to recover access using the internal _transferOwnership', async function () {
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await this.ownable.renounceOwnership({ from: owner });
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const receipt = await this.ownable.$_transferOwnership(other);
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expectEvent(receipt, 'OwnershipTransferred');
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expect(await this.ownable.owner()).to.equal(other);
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});
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});
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});
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