194 lines
10 KiB
TypeScript

import { StringRevertError } from '@0x/utils';
import * as chai from 'chai';
import { chaiSetup } from '../src';
chaiSetup.configure();
const expect = chai.expect;
class DescendantRevertError extends StringRevertError {
constructor(msg: string) {
super(msg);
}
}
describe('Chai tests', () => {
describe('RevertErrors', () => {
describe('#equal', () => {
it('should equate two identical RevertErrors', () => {
const message = 'foo';
const revert1 = new StringRevertError(message);
const revert2 = new StringRevertError(message);
expect(revert1).is.equal(revert2);
});
it('should equate two RevertErrors where one has missing fields', () => {
const revert1 = new StringRevertError('foo');
const revert2 = new StringRevertError();
expect(revert1).is.equal(revert2);
});
it('should not equate two RevertErrors with diferent fields', () => {
const revert1 = new StringRevertError('foo1');
const revert2 = new StringRevertError('foo2');
expect(revert1).is.not.equal(revert2);
});
it('should not equate two RevertErrors with diferent types', () => {
const message = 'foo';
const revert1 = new StringRevertError(message);
const revert2 = new DescendantRevertError(message);
expect(revert1).is.not.equal(revert2);
});
it('should equate a StringRevertError to a string equal to message', () => {
const message = 'foo';
const revert = new StringRevertError(message);
expect(message).is.equal(revert);
});
it('should equate an Error to a StringRevertError with an equal message', () => {
const message = 'foo';
const revert = new StringRevertError(message);
const error = new Error(message);
expect(error).is.equal(revert);
});
it('should equate a ganache transaction revert error with reason to a StringRevertError with an equal message', () => {
const message = 'foo';
const error: any = new Error(`VM Exception while processing transaction: revert ${message}`);
error.hashes = ['0x1'];
error.results = { '0x1': { error: 'revert', program_counter: 1, return: '0x', reason: message } };
const revert = new StringRevertError(message);
expect(error).is.equal(revert);
});
it('should equate a ganache transaction revert error with return data to a StringRevertError with an equal message', () => {
const error: any = new Error(`VM Exception while processing transaction: revert`);
error.hashes = ['0x1'];
// Encoding for `Error(string message='foo')`
const returnData =
'0x08c379a000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000003666f6f0000000000000000000000000000000000000000000000000000000000';
error.results = {
'0x1': { error: 'revert', program_counter: 1, return: returnData, reason: undefined },
};
const revert = new StringRevertError('foo');
expect(error).is.equal(revert);
});
it('should not equate a ganache transaction revert error with reason to a StringRevertError with a different message', () => {
const message = 'foo';
const error: any = new Error(`VM Exception while processing transaction: revert ${message}`);
error.hashes = ['0x1'];
error.results = { '0x1': { error: 'revert', program_counter: 1, return: '0x', reason: message } };
const revert = new StringRevertError('boo');
expect(error).is.not.equal(revert);
});
it('should not equate a ganache transaction revert error with return data to a StringRevertError with a different message', () => {
const error: any = new Error(`VM Exception while processing transaction: revert`);
error.hashes = ['0x1'];
// Encoding for `Error(string message='foo')`
const returnData =
'0x08c379a000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000003666f6f0000000000000000000000000000000000000000000000000000000000';
error.results = {
'0x1': { error: 'revert', program_counter: 1, return: returnData, reason: undefined },
};
const revert = new StringRevertError('boo');
expect(error).is.not.equal(revert);
});
it('should equate an opaque geth transaction revert error to any RevertError', () => {
const error = new Error(`always failing transaction`);
const revert = new StringRevertError('foo');
expect(error).is.equal(revert);
});
it('should equate a string to a StringRevertError with the same message', () => {
const message = 'foo';
const revert = new StringRevertError(message);
expect(revert).is.equal(message);
});
it('should not equate a StringRevertError to a string not equal to message', () => {
const revert = new StringRevertError('foo1');
expect('foo2').is.not.equal(revert);
});
it('should not equate a string to a StringRevertError with a different message', () => {
const revert = new StringRevertError('foo1');
expect(revert).is.not.equal('foo2');
});
it('should not equate an Error to a StringRevertError with a different message', () => {
const revert = new StringRevertError('foo1');
const error = new Error('foo2');
expect(error).is.not.equal(revert);
});
});
describe('#revertWith', () => {
it('should equate a promise that rejects to identical RevertErrors', async () => {
const message = 'foo';
const revert1 = new StringRevertError(message);
const revert2 = new StringRevertError(message);
const promise = (async () => {
throw revert1;
})();
return expect(promise).to.revertWith(revert2);
});
it('should not equate a promise that rejects to a StringRevertError with a different messages', async () => {
const revert1 = new StringRevertError('foo1');
const revert2 = new StringRevertError('foo2');
const promise = (async () => {
throw revert1;
})();
return expect(promise).to.not.revertWith(revert2);
});
it('should not equate a promise that rejects to different RevertError types', async () => {
const message = 'foo';
const revert1 = new StringRevertError(message);
const revert2 = new DescendantRevertError(message);
const promise = (async () => {
throw revert1;
})();
return expect(promise).to.not.revertWith(revert2);
});
});
describe('#become', () => {
it('should equate a promise that resolves to an identical RevertErrors', async () => {
const message = 'foo';
const revert1 = new StringRevertError(message);
const revert2 = new StringRevertError(message);
const promise = (async () => revert1)();
return expect(promise).to.become(revert2);
});
it('should not equate a promise that resolves to a StringRevertError with a different messages', async () => {
const revert1 = new StringRevertError('foo1');
const revert2 = new StringRevertError('foo2');
const promise = (async () => revert1)();
return expect(promise).to.not.become(revert2);
});
it('should not equate a promise that resolves to different RevertError types', async () => {
const message = 'foo';
const revert1 = new StringRevertError(message);
const revert2 = new DescendantRevertError(message);
const promise = (async () => revert1)();
return expect(promise).to.not.become(revert2);
});
});
// TODO: Remove these tests when we no longer coerce `Error` types to `StringRevertError` types
// for backwards compatibility.
describe('#rejectedWith (backwards compatibility)', () => {
it('should equate a promise that rejects with an Error to a string of the same message', async () => {
const message = 'foo';
const revert1 = new Error(message);
const promise = (async () => {
throw revert1;
})();
return expect(promise).to.rejectedWith(message);
});
it('should equate a promise that rejects with an StringRevertErrors to a string of the same message', async () => {
const message = 'foo';
const revert = new StringRevertError(message);
const promise = (async () => {
throw revert;
})();
return expect(promise).to.rejectedWith(message);
});
it('should not equate a promise that rejects with an StringRevertErrors to a string with different messages', async () => {
const revert = new StringRevertError('foo1');
const promise = (async () => {
throw revert;
})();
return expect(promise).to.not.be.rejectedWith('foo2');
});
});
});
});