GET /products?select=id,unit_price,discontinued,supplier_id
?? status == 200
?? body length == 77
{{
    const { expect } = require('chai');
    let actual = JSON.parse(response.body)[0];
    let expected =  {
    id: 1,
    unit_price: 18,
    discontinued: 1,
    supplier_id: 8
    }
    test('OK Select', () => {
    expect(JSON.stringify(expected)).to.equal(JSON.stringify(actual));
    });
}}
###
GET /products?select=id,unit_price,categories(category_name)
?? status == 200
?? body length == 77
{{
    const { expect } = require('chai');
    let actual = JSON.parse(response.body)[0];
    let expected =  {
    id: 1,
    unit_price: 18,
      categories: {
        category_name: "Beverages"
        }
    }
    test('OK Select', () => {
    expect(JSON.stringify(expected)).to.equal(JSON.stringify(actual));
    });
}}
###
GET /categories?select=id,category_name,products(product_name)
?? status == 200
?? body length == 8
{{
    const { expect } = require('chai');
    let actual = JSON.parse(response.body)[0];
    let expected =  {
    id: 1,
    category_name: "Beverages",
      products: [
            {
                product_name: "Chai"
            },
            {
                product_name: "Chang"
            },
            {
                product_name: "Guaraná Fantástica"
            },
            {
                product_name: "Sasquatch Ale"
            },
            {
                product_name: "Steeleye Stout"
            },
            {
                product_name: "Côte de Blaye"
            },
            {
                product_name: "Chartreuse verte"
            },
            {
                product_name: "Ipoh Coffee"
            },
            {
                product_name: "Laughing Lumberjack Lager"
            },
            {
                product_name: "Outback Lager"
            },
            {
                product_name: "Rhönbräu Klosterbier"
            },
            {
                product_name: "Lakkalikööri"
            }
        ]
    }
    test('OK Select', () => {
    expect(JSON.stringify(expected)).to.equal(JSON.stringify(actual));
    });
}}