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openzeppelin-contracts/test/lifecycle/Pausable.test.js

116 lines
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const { expectEvent, expectRevert } = require('@openzeppelin/test-helpers');
const { shouldBehaveLikePublicRole } = require('../behaviors/access/roles/PublicRole.behavior');
const { expect } = require('chai');
const PausableMock = artifacts.require('PausableMock');
contract('Pausable', function ([_, pauser, otherPauser, other, ...otherAccounts]) {
beforeEach(async function () {
this.pausable = await PausableMock.new({ from: pauser });
});
describe('pauser role', function () {
beforeEach(async function () {
this.contract = this.pausable;
await this.contract.addPauser(otherPauser, { from: pauser });
});
shouldBehaveLikePublicRole(pauser, otherPauser, otherAccounts, 'pauser');
});
context('when unpaused', function () {
beforeEach(async function () {
expect(await this.pausable.paused()).to.equal(false);
});
it('can perform normal process in non-pause', async function () {
expect(await this.pausable.count()).to.be.bignumber.equal('0');
await this.pausable.normalProcess({ from: other });
expect(await this.pausable.count()).to.be.bignumber.equal('1');
});
it('cannot take drastic measure in non-pause', async function () {
await expectRevert(this.pausable.drasticMeasure({ from: other }),
'Pausable: not paused'
);
expect(await this.pausable.drasticMeasureTaken()).to.equal(false);
});
describe('pausing', function () {
it('is pausable by the pauser', async function () {
await this.pausable.pause({ from: pauser });
expect(await this.pausable.paused()).to.equal(true);
});
it('reverts when pausing from non-pauser', async function () {
await expectRevert(this.pausable.pause({ from: other }),
'PauserRole: caller does not have the Pauser role'
);
});
context('when paused', function () {
beforeEach(async function () {
({ logs: this.logs } = await this.pausable.pause({ from: pauser }));
});
it('emits a Paused event', function () {
expectEvent.inLogs(this.logs, 'Paused', { account: pauser });
});
it('cannot perform normal process in pause', async function () {
await expectRevert(this.pausable.normalProcess({ from: other }), 'Pausable: paused');
});
it('can take a drastic measure in a pause', async function () {
await this.pausable.drasticMeasure({ from: other });
expect(await this.pausable.drasticMeasureTaken()).to.equal(true);
});
it('reverts when re-pausing', async function () {
await expectRevert(this.pausable.pause({ from: pauser }), 'Pausable: paused');
});
describe('unpausing', function () {
it('is unpausable by the pauser', async function () {
await this.pausable.unpause({ from: pauser });
expect(await this.pausable.paused()).to.equal(false);
});
it('reverts when unpausing from non-pauser', async function () {
await expectRevert(this.pausable.unpause({ from: other }),
'PauserRole: caller does not have the Pauser role'
);
});
context('when unpaused', function () {
beforeEach(async function () {
({ logs: this.logs } = await this.pausable.unpause({ from: pauser }));
});
it('emits an Unpaused event', function () {
expectEvent.inLogs(this.logs, 'Unpaused', { account: pauser });
});
it('should resume allowing normal process', async function () {
expect(await this.pausable.count()).to.be.bignumber.equal('0');
await this.pausable.normalProcess({ from: other });
expect(await this.pausable.count()).to.be.bignumber.equal('1');
});
it('should prevent drastic measure', async function () {
await expectRevert(this.pausable.drasticMeasure({ from: other }),
'Pausable: not paused'
);
});
it('reverts when re-unpausing', async function () {
await expectRevert(this.pausable.unpause({ from: pauser }), 'Pausable: not paused');
});
});
});
});
});
});
});