model-layer/test/Collection/array-methods/concat-spec.ts

model layer

import {Collection, Model, Types} from "../../../lib/index";
import assert from "assert";

class Product extends Model<Product> {
    structure() {
        return {
            name: Types.String,
            price: Types.Number
        };
    }
}

describe("Collection.concat", () => {

    it("concat(collection)", () => {
        class Products extends Collection<Product> {
            Model() {
                return Product;
            }
        }

        const arr1 = new Products([
            {name: "Eggs", price: 1.8},
            {name: "Pie", price: 10}
        ]);

        const arr2 = new Products([
            {name: "Bread", price: 2.3},
            {name: "Milk", price: 10}
        ]);

        const arr3 = arr1.concat( arr2 );
        assert.strictEqual( arr3.length, 4 );

        assert.strictEqual( arr3.at(1)!.get("name"), "Pie" );
        assert.strictEqual( arr3.at(2)!.get("name"), "Bread" );
    });

    it("concat(rows)", () => {
        
        class Products extends Collection<Product> {
            Model() {
                return Product;
            }
        }

        const arr1 = new Products([
            {name: "Eggs", price: 1.8},
            {name: "Pie", price: 10}
        ]);

        const arr2 = [
            {name: "Bread", price: 2.3},
            {name: "Milk", price: 10}
        ];

        const arr3 = arr1.concat( arr2 );
        assert.strictEqual( arr3.length, 4 );

        assert.strictEqual( arr3.at(1)!.get("name"), "Pie" );
        assert.strictEqual( arr3.at(2)!.get("name"), "Bread" );
    });

    it("concat(rows1, rows2)", () => {
        
        class Products extends Collection<Product> {
            Model() {
                return Product;
            }
        }

        const arr1 = new Products([
            {name: "Eggs", price: 1.8},
            {name: "Pie", price: 10}
        ]);

        const arr2 = [
            {name: "Bread", price: 2.3}
        ];
        const arr3 = [
            {name: "Milk", price: 10}
        ];

        const arr4 = arr1.concat( arr2, arr3 );
        assert.strictEqual( arr4.length, 4 );

        assert.strictEqual( arr4.at(1)!.get("name"), "Pie" );
        assert.strictEqual( arr4.at(2)!.get("name"), "Bread" );
        assert.strictEqual( arr4.at(3)!.get("name"), "Milk" );
    });

    it("concat(rows, collection)", () => {
        
        class Products extends Collection<Product> {
            Model() {
                return Product;
            }
        }

        const arr1 = new Products([
            {name: "Eggs", price: 1.8},
            {name: "Pie", price: 10}
        ]);

        const arr2 = [
            {name: "Bread", price: 2.3}
        ];
        const arr3 = new Products([
            {name: "Milk", price: 10}
        ]);

        const arr4 = arr1.concat( arr2, arr3 );
        assert.strictEqual( arr4.length, 4 );

        assert.strictEqual( arr4.at(1)!.get("name"), "Pie" );
        assert.strictEqual( arr4.at(2)!.get("name"), "Bread" );
        assert.strictEqual( arr4.at(3)!.get("name"), "Milk" );
    });

    
    it("concat()", () => {
        
        class Products extends Collection<Product> {
            Model() {
                return Product;
            }
        }

        const arr1 = new Products([
            {name: "Eggs", price: 1.8},
            {name: "Pie", price: 10}
        ]);

        const arr2 = arr1.concat();
        assert.strictEqual( arr2.length, 2 );

        assert.strictEqual( arr2.at(1)!.get("name"), "Pie" );
    });
});