const app = require('vn-loopback/server/server');
const ParameterizedSQL = require('loopback-connector').ParameterizedSQL;

describe('item_getBalance()', () => {
    it(`should return the item balance ordered by alert level`, async() => {
        let stmts = [];

        let params = {
            itemFk: 1,
            warehouseFk: 1
        };

        const conn = await app.models.Item.dataSource.connector;

        stmts.push(new ParameterizedSQL('CALL vn.item_getBalance(?, ?, NULL)', [
            params.warehouseFk,
            params.itemFk
        ]));

        let sql = ParameterizedSQL.join(stmts, ';');
        let result = await conn.executeStmt(sql);
        let itemBalance = result[0];

        expect(itemBalance[0].alertLevel).toBeGreaterThanOrEqual(itemBalance[1].alertLevel);
        expect(itemBalance[1].alertLevel).toBeGreaterThanOrEqual(itemBalance[2].alertLevel);
        expect(itemBalance[2].alertLevel).toBeGreaterThanOrEqual(itemBalance[3].alertLevel);
        expect(itemBalance[3].alertLevel).toBeGreaterThanOrEqual(itemBalance[4].alertLevel);
        expect(itemBalance[4].alertLevel).toBeGreaterThanOrEqual(itemBalance[5].alertLevel);
        expect(itemBalance[5].alertLevel).toBeGreaterThanOrEqual(itemBalance[6].alertLevel);
    });
});