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Address.test.js
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Address.test.js
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const { balance, ether, expectRevert, send, expectEvent } = require('@openzeppelin/test-helpers');
const { expect } = require('chai');
const AddressImpl = artifacts.require('AddressImpl');
const EtherReceiver = artifacts.require('EtherReceiverMock');
const CallReceiverMock = artifacts.require('CallReceiverMock');
contract('Address', function (accounts) {
const [ recipient, other ] = accounts;
beforeEach(async function () {
this.mock = await AddressImpl.new();
});
describe('isContract', function () {
it('returns false for account address', async function () {
expect(await this.mock.isContract(other)).to.equal(false);
});
it('returns true for contract address', async function () {
const contract = await AddressImpl.new();
expect(await this.mock.isContract(contract.address)).to.equal(true);
});
});
describe('sendValue', function () {
beforeEach(async function () {
this.recipientTracker = await balance.tracker(recipient);
});
context('when sender contract has no funds', function () {
it('sends 0 wei', async function () {
await this.mock.sendValue(other, 0);
expect(await this.recipientTracker.delta()).to.be.bignumber.equal('0');
});
it('reverts when sending non-zero amounts', async function () {
await expectRevert(this.mock.sendValue(other, 1), 'Address: insufficient balance');
});
});
context('when sender contract has funds', function () {
const funds = ether('1');
beforeEach(async function () {
await send.ether(other, this.mock.address, funds);
});
it('sends 0 wei', async function () {
await this.mock.sendValue(recipient, 0);
expect(await this.recipientTracker.delta()).to.be.bignumber.equal('0');
});
it('sends non-zero amounts', async function () {
await this.mock.sendValue(recipient, funds.subn(1));
expect(await this.recipientTracker.delta()).to.be.bignumber.equal(funds.subn(1));
});
it('sends the whole balance', async function () {
await this.mock.sendValue(recipient, funds);
expect(await this.recipientTracker.delta()).to.be.bignumber.equal(funds);
expect(await balance.current(this.mock.address)).to.be.bignumber.equal('0');
});
it('reverts when sending more than the balance', async function () {
await expectRevert(this.mock.sendValue(recipient, funds.addn(1)), 'Address: insufficient balance');
});
context('with contract recipient', function () {
beforeEach(async function () {
this.contractRecipient = await EtherReceiver.new();
});
it('sends funds', async function () {
const tracker = await balance.tracker(this.contractRecipient.address);
await this.contractRecipient.setAcceptEther(true);
await this.mock.sendValue(this.contractRecipient.address, funds);
expect(await tracker.delta()).to.be.bignumber.equal(funds);
});
it('reverts on recipient revert', async function () {
await this.contractRecipient.setAcceptEther(false);
await expectRevert(
this.mock.sendValue(this.contractRecipient.address, funds),
'Address: unable to send value, recipient may have reverted',
);
});
});
});
});
describe('functionCall', function () {
beforeEach(async function () {
this.contractRecipient = await CallReceiverMock.new();
});
context('with valid contract receiver', function () {
it('calls the requested function', async function () {
const abiEncodedCall = web3.eth.abi.encodeFunctionCall({
name: 'mockFunction',
type: 'function',
inputs: [],
}, []);
const receipt = await this.mock.functionCall(this.contractRecipient.address, abiEncodedCall);
expectEvent(receipt, 'CallReturnValue', { data: '0x1234' });
await expectEvent.inTransaction(receipt.tx, CallReceiverMock, 'MockFunctionCalled');
});
it('reverts when the called function reverts with no reason', async function () {
const abiEncodedCall = web3.eth.abi.encodeFunctionCall({
name: 'mockFunctionRevertsNoReason',
type: 'function',
inputs: [],
}, []);
await expectRevert(
this.mock.functionCall(this.contractRecipient.address, abiEncodedCall),
'Address: low-level call failed',
);
});
it('reverts when the called function reverts, bubbling up the revert reason', async function () {
const abiEncodedCall = web3.eth.abi.encodeFunctionCall({
name: 'mockFunctionRevertsReason',
type: 'function',
inputs: [],
}, []);
await expectRevert(
this.mock.functionCall(this.contractRecipient.address, abiEncodedCall),
'CallReceiverMock: reverting',
);
});
it('reverts when the called function runs out of gas', async function () {
const abiEncodedCall = web3.eth.abi.encodeFunctionCall({
name: 'mockFunctionOutOfGas',
type: 'function',
inputs: [],
}, []);
await expectRevert(
this.mock.functionCall(this.contractRecipient.address, abiEncodedCall, { gas: '120000' }),
'Address: low-level call failed',
);
});
it('reverts when the called function throws', async function () {
const abiEncodedCall = web3.eth.abi.encodeFunctionCall({
name: 'mockFunctionThrows',
type: 'function',
inputs: [],
}, []);
await expectRevert.unspecified(
this.mock.functionCall(this.contractRecipient.address, abiEncodedCall),
);
});
it('reverts when function does not exist', async function () {
const abiEncodedCall = web3.eth.abi.encodeFunctionCall({
name: 'mockFunctionDoesNotExist',
type: 'function',
inputs: [],
}, []);
await expectRevert(
this.mock.functionCall(this.contractRecipient.address, abiEncodedCall),
'Address: low-level call failed',
);
});
});
context('with non-contract receiver', function () {
it('reverts when address is not a contract', async function () {
const [ recipient ] = accounts;
const abiEncodedCall = web3.eth.abi.encodeFunctionCall({
name: 'mockFunction',
type: 'function',
inputs: [],
}, []);
await expectRevert(this.mock.functionCall(recipient, abiEncodedCall), 'Address: call to non-contract');
});
});
});
describe('functionCallWithValue', function () {
beforeEach(async function () {
this.contractRecipient = await CallReceiverMock.new();
});
context('with zero value', function () {
it('calls the requested function', async function () {
const abiEncodedCall = web3.eth.abi.encodeFunctionCall({
name: 'mockFunction',
type: 'function',
inputs: [],
}, []);
const receipt = await this.mock.functionCallWithValue(this.contractRecipient.address, abiEncodedCall, 0);
expectEvent(receipt, 'CallReturnValue', { data: '0x1234' });
await expectEvent.inTransaction(receipt.tx, CallReceiverMock, 'MockFunctionCalled');
});
});
context('with non-zero value', function () {
const amount = ether('1.2');
it('reverts if insufficient sender balance', async function () {
const abiEncodedCall = web3.eth.abi.encodeFunctionCall({
name: 'mockFunction',
type: 'function',
inputs: [],
}, []);
await expectRevert(
this.mock.functionCallWithValue(this.contractRecipient.address, abiEncodedCall, amount),
'Address: insufficient balance for call',
);
});
it('calls the requested function with existing value', async function () {
const abiEncodedCall = web3.eth.abi.encodeFunctionCall({
name: 'mockFunction',
type: 'function',
inputs: [],
}, []);
const tracker = await balance.tracker(this.contractRecipient.address);
await send.ether(other, this.mock.address, amount);
const receipt = await this.mock.functionCallWithValue(this.contractRecipient.address, abiEncodedCall, amount);
expect(await tracker.delta()).to.be.bignumber.equal(amount);
expectEvent(receipt, 'CallReturnValue', { data: '0x1234' });
await expectEvent.inTransaction(receipt.tx, CallReceiverMock, 'MockFunctionCalled');
});
it('calls the requested function with transaction funds', async function () {
const abiEncodedCall = web3.eth.abi.encodeFunctionCall({
name: 'mockFunction',
type: 'function',
inputs: [],
}, []);
const tracker = await balance.tracker(this.contractRecipient.address);
expect(await balance.current(this.mock.address)).to.be.bignumber.equal('0');
const receipt = await this.mock.functionCallWithValue(
this.contractRecipient.address, abiEncodedCall, amount, { from: other, value: amount },
);
expect(await tracker.delta()).to.be.bignumber.equal(amount);
expectEvent(receipt, 'CallReturnValue', { data: '0x1234' });
await expectEvent.inTransaction(receipt.tx, CallReceiverMock, 'MockFunctionCalled');
});
it('reverts when calling non-payable functions', async function () {
const abiEncodedCall = web3.eth.abi.encodeFunctionCall({
name: 'mockFunctionNonPayable',
type: 'function',
inputs: [],
}, []);
await send.ether(other, this.mock.address, amount);
await expectRevert(
this.mock.functionCallWithValue(this.contractRecipient.address, abiEncodedCall, amount),
'Address: low-level call with value failed',
);
});
});
});
describe('functionStaticCall', function () {
beforeEach(async function () {
this.contractRecipient = await CallReceiverMock.new();
});
it('calls the requested function', async function () {
const abiEncodedCall = web3.eth.abi.encodeFunctionCall({
name: 'mockStaticFunction',
type: 'function',
inputs: [],
}, []);
const receipt = await this.mock.functionStaticCall(this.contractRecipient.address, abiEncodedCall);
expectEvent(receipt, 'CallReturnValue', { data: '0x1234' });
});
it('reverts on a non-static function', async function () {
const abiEncodedCall = web3.eth.abi.encodeFunctionCall({
name: 'mockFunction',
type: 'function',
inputs: [],
}, []);
await expectRevert(
this.mock.functionStaticCall(this.contractRecipient.address, abiEncodedCall),
'Address: low-level static call failed',
);
});
it('bubbles up revert reason', async function () {
const abiEncodedCall = web3.eth.abi.encodeFunctionCall({
name: 'mockFunctionRevertsReason',
type: 'function',
inputs: [],
}, []);
await expectRevert(
this.mock.functionStaticCall(this.contractRecipient.address, abiEncodedCall),
'CallReceiverMock: reverting',
);
});
it('reverts when address is not a contract', async function () {
const [ recipient ] = accounts;
const abiEncodedCall = web3.eth.abi.encodeFunctionCall({
name: 'mockFunction',
type: 'function',
inputs: [],
}, []);
await expectRevert(
this.mock.functionStaticCall(recipient, abiEncodedCall),
'Address: call to non-contract',
);
});
});
describe('functionDelegateCall', function () {
beforeEach(async function () {
this.contractRecipient = await CallReceiverMock.new();
});
it('delegate calls the requested function', async function () {
const abiEncodedCall = web3.eth.abi.encodeFunctionCall({
name: 'mockFunctionWritesStorage',
type: 'function',
inputs: [],
}, []);
const receipt = await this.mock.functionDelegateCall(this.contractRecipient.address, abiEncodedCall);
expectEvent(receipt, 'CallReturnValue', { data: '0x1234' });
expect(await this.mock.sharedAnswer()).to.equal('42');
});
it('bubbles up revert reason', async function () {
const abiEncodedCall = web3.eth.abi.encodeFunctionCall({
name: 'mockFunctionRevertsReason',
type: 'function',
inputs: [],
}, []);
await expectRevert(
this.mock.functionDelegateCall(this.contractRecipient.address, abiEncodedCall),
'CallReceiverMock: reverting',
);
});
it('reverts when address is not a contract', async function () {
const [ recipient ] = accounts;
const abiEncodedCall = web3.eth.abi.encodeFunctionCall({
name: 'mockFunction',
type: 'function',
inputs: [],
}, []);
await expectRevert(
this.mock.functionDelegateCall(recipient, abiEncodedCall),
'Address: call to non-contract',
);
});
});
});