117 lines
5.1 KiB
TypeScript

import { blockchainTests, constants, expect, filterLogsToArguments, getRandomInteger } from '@0x/contracts-test-utils';
import { BigNumber, StringRevertError } from '@0x/utils';
import { TransactionReceiptWithDecodedLogs } from 'ethereum-types';
import { FunctionAssertion, Result } from '../utils/function_assertions';
import { artifacts } from '../artifacts';
import { TestFrameworkContract, TestFrameworkEventEventArgs, TestFrameworkEvents } from '../wrappers';
const { ZERO_AMOUNT, MAX_UINT256 } = constants;
blockchainTests.resets('FunctionAssertion Unit Tests', env => {
let exampleContract: TestFrameworkContract;
before(async () => {
exampleContract = await TestFrameworkContract.deployFrom0xArtifactAsync(
artifacts.TestFramework,
env.provider,
env.txDefaults,
artifacts,
);
});
describe('executeAsync', () => {
it('should call the before function with the provided arguments', async () => {
let sideEffectTarget = ZERO_AMOUNT;
const assertion = new FunctionAssertion(exampleContract.returnInteger, {
before: async (_input: BigNumber) => {
sideEffectTarget = randomInput;
},
});
const randomInput = getRandomInteger(ZERO_AMOUNT, MAX_UINT256);
await assertion.executeAsync(randomInput);
expect(sideEffectTarget).bignumber.to.be.eq(randomInput);
});
it('should call the after function with the provided arguments', async () => {
let sideEffectTarget = ZERO_AMOUNT;
const assertion = new FunctionAssertion(exampleContract.returnInteger, {
after: async (_beforeInfo: any, _result: Result, input: BigNumber) => {
sideEffectTarget = input;
},
});
const randomInput = getRandomInteger(ZERO_AMOUNT, MAX_UINT256);
await assertion.executeAsync(randomInput);
expect(sideEffectTarget).bignumber.to.be.eq(randomInput);
});
it('should not fail immediately if the wrapped function fails', async () => {
const assertion = new FunctionAssertion<{}>(exampleContract.emptyRevert);
await assertion.executeAsync();
});
it('should pass the return value of "before" to "after"', async () => {
const randomInput = getRandomInteger(ZERO_AMOUNT, MAX_UINT256);
let sideEffectTarget = ZERO_AMOUNT;
const assertion = new FunctionAssertion(exampleContract.returnInteger, {
before: async (_input: BigNumber) => {
return randomInput;
},
after: async (beforeInfo: any, _result: Result, _input: BigNumber) => {
sideEffectTarget = beforeInfo;
},
});
await assertion.executeAsync(randomInput);
expect(sideEffectTarget).bignumber.to.be.eq(randomInput);
});
it('should pass the result from the function call to "after"', async () => {
let sideEffectTarget = ZERO_AMOUNT;
const assertion = new FunctionAssertion(exampleContract.returnInteger, {
after: async (_beforeInfo: any, result: Result, _input: BigNumber) => {
sideEffectTarget = result.data;
},
});
const randomInput = getRandomInteger(ZERO_AMOUNT, MAX_UINT256);
await assertion.executeAsync(randomInput);
expect(sideEffectTarget).bignumber.to.be.eq(randomInput);
});
it('should pass the receipt from the function call to "after"', async () => {
let sideEffectTarget: TransactionReceiptWithDecodedLogs;
const assertion = new FunctionAssertion(exampleContract.emitEvent, {
after: async (_beforeInfo: any, result: Result, _input: string) => {
if (result.receipt) {
sideEffectTarget = result.receipt;
}
},
});
const input = 'emitted data';
await assertion.executeAsync(input);
// Ensure that the correct events were emitted.
const [event] = filterLogsToArguments<TestFrameworkEventEventArgs>(
sideEffectTarget!.logs, // tslint:disable-line:no-non-null-assertion
TestFrameworkEvents.Event,
);
expect(event).to.be.deep.eq({ input });
});
it('should pass the error to "after" if the function call fails', async () => {
let sideEffectTarget: Error;
const assertion = new FunctionAssertion(exampleContract.stringRevert, {
after: async (_beforeInfo: any, result: Result, _input: string) => {
sideEffectTarget = result.data;
},
});
const message = 'error message';
await assertion.executeAsync(message);
const expectedError = new StringRevertError(message);
return expect(Promise.reject(sideEffectTarget!)).to.revertWith(expectedError); // tslint:disable-line
});
});
});