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import * as chai from 'chai';
import * as dirtyChai from 'dirty-chai';
import 'mocha';
import {orderbookChannelMessageParsers} from '../src/utils/orderbook_channel_message_parsers';
// tslint:disable-next-line:max-line-length
import {orderResponse} from './fixtures/standard_relayer_api/order/0xabc67323774bdbd24d94f977fa9ac94a50f016026fd13f42990861238897721f';
import {orderbookResponse} from './fixtures/standard_relayer_api/orderbook';
import {
malformedSnapshotOrderbookChannelMessage,
snapshotOrderbookChannelMessage,
} from './fixtures/standard_relayer_api/snapshot_orderbook_channel_message';
import {unknownOrderbookChannelMessage} from './fixtures/standard_relayer_api/unknown_orderbook_channel_message';
import {
malformedUpdateOrderbookChannelMessage,
updateOrderbookChannelMessage,
} from './fixtures/standard_relayer_api/update_orderbook_channel_message';
chai.config.includeStack = true;
chai.use(dirtyChai);
const expect = chai.expect;
describe('orderbookChannelMessageParsers', () => {
describe('#parser', () => {
it('parses snapshot messages', () => {
const snapshotMessage = orderbookChannelMessageParsers.parser(snapshotOrderbookChannelMessage);
expect(snapshotMessage.type).to.be.equal('snapshot');
expect(snapshotMessage.payload).to.be.deep.equal(orderbookResponse);
});
it('parses update messages', () => {
const updateMessage = orderbookChannelMessageParsers.parser(updateOrderbookChannelMessage);
expect(updateMessage.type).to.be.equal('update');
expect(updateMessage.payload).to.be.deep.equal(orderResponse);
});
it('returns unknown message for messages with unsupported types', () => {
const unknownMessage = orderbookChannelMessageParsers.parser(unknownOrderbookChannelMessage);
expect(unknownMessage.type).to.be.equal('unknown');
expect(unknownMessage.payload).to.be.undefined();
});
it('throws when message does not include a type', () => {
const typelessMessage = `{
"channel": "orderbook",
"requestId": 1,
"payload": {}
}`;
const badCall = () => orderbookChannelMessageParsers.parser(typelessMessage);
expect(badCall).throws(`Message is missing a type parameter: ${typelessMessage}`);
});
it('throws when type is not a string', () => {
const messageWithBadType = `{
"type": 1,
"channel": "orderbook",
"requestId": 1,
"payload": {}
}`;
const badCall = () => orderbookChannelMessageParsers.parser(messageWithBadType);
expect(badCall).throws('Expected type to be of type string, encountered: 1');
});
it('throws when snapshot message has malformed payload', () => {
const badCall = () =>
orderbookChannelMessageParsers.parser(malformedSnapshotOrderbookChannelMessage);
// tslint:disable-next-line:max-line-length
const errMsg = 'Validation errors: instance.payload requires property "bids", instance.payload requires property "asks"';
expect(badCall).throws(errMsg);
});
it('throws when update message has malformed payload', () => {
const badCall = () =>
orderbookChannelMessageParsers.parser(malformedUpdateOrderbookChannelMessage);
expect(badCall).throws(/^Expected message to conform to schema/);
});
it('throws when input message is not valid JSON', () => {
const nonJsonString = 'h93b{sdfs9fsd f';
const badCall = () => orderbookChannelMessageParsers.parser(nonJsonString);
expect(badCall).throws('Unexpected token h in JSON at position 0');
});
});
});
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