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