const fs = require('fs');
const path = require('path');
const vm = require('vm');

function loadEodPositionRiskHelpers() {
    const filePath = path.join(__dirname, '../wwwroot/Scripts/app/swaptrade/EodPositionRisks.js');
    const code = fs.readFileSync(filePath, 'utf8') + '\nmodule.exports = { TradeDirectionFormat };';
    const sandbox = {
        module: { exports: {} },
        exports: {},
        $() { },
        main: {
            numberFormat() {
                return function () { };
            }
        }
    };

    vm.runInNewContext(code, sandbox, { filename: filePath });
    return sandbox.module.exports;
}

const { TradeDirectionFormat } = loadEodPositionRiskHelpers();

describe('互换日终持仓交易方向', () => {
    test.each([
        [1, 1, '多头'],
        [1, 2, '空头'],
        [2, 1, '空头'],
        [2, 2, '多头']
    ])('收支方向=%i，多空方向=%i时展示%s', (posiDirection, positionType, expected) => {
        const row = { eodPosition: { PosiDirection: posiDirection, PositionType: positionType } };
        expect(TradeDirectionFormat(positionType, {}, row)).toBe(expected);
    });

    test('无有效浮动端方向时不展示交易方向', () => {
        expect(TradeDirectionFormat(1, {}, { eodPosition: { PosiDirection: 0, PositionType: 1 } })).toBe('');
    });
});