import 'mocha';
import * as dirtyChai from 'dirty-chai';
import * as chai from 'chai';
import {
    WebSocketOrderbookChannel,
} from '../src/index';

chai.config.includeStack = true;
chai.use(dirtyChai);
const expect = chai.expect;

describe('WebSocketOrderbookChannel', () => {
    const websocketUrl = 'ws://localhost:8080';
    const orderbookChannel = new WebSocketOrderbookChannel(websocketUrl);
    const subscriptionOpts = {
        baseTokenAddress: '0x323b5d4c32345ced77393b3530b1eed0f346429d',
        quoteTokenAddress: '0xef7fff64389b814a946f3e92105513705ca6b990',
        snapshot: true,
        limit: 100,
    };
    const emptyOrderbookChannelHandler = {
        onSnapshot: () => { return; },
        onUpdate: () => { return; },
        onError: () => { return; },
        onClose: () => { return; },
    };
    describe('#subscribe', () => {
        it('throws when subscriptionOpts does not conform to schema', () => {
            const badSubscribeCall = orderbookChannel.subscribe.bind(
                orderbookChannel, {}, emptyOrderbookChannelHandler);
            // tslint:disable-next-line:max-line-length
            expect(badSubscribeCall)
                .throws('Expected subscriptionOpts to conform to schema /RelayerApiOrderbookChannelSubscribePayload\nEncountered: {}\nValidation errors: instance requires property "baseTokenAddress", instance requires property "quoteTokenAddress"');
        });
        it('throws when handler has the incorrect members', () => {
            const badSubscribeCall = orderbookChannel.subscribe.bind(orderbookChannel, subscriptionOpts, {});
            expect(badSubscribeCall)
                .throws('Expected handler.onSnapshot to be of type function, encountered: undefined');
        });
        it('does not throw when inputs are of correct types', () => {
            const goodSubscribeCall = orderbookChannel.subscribe.bind(
                orderbookChannel, subscriptionOpts, emptyOrderbookChannelHandler);
            expect(goodSubscribeCall).to.not.throw();
        });
    });
});