import "reflect-metadata"
import {
    createTestingConnections,
    closeTestingConnections,
    reloadTestingDatabases,
} from "../../utils/test-utils"
import { DataSource } from "../../../src/data-source/DataSource"
import { expect } from "chai"
import { Dummy } from "./entity/dummy"
import { transformer, WrappedNumber } from "./transformer"

describe("github issues > #2557 object looses its prototype before transformer.to()", () => {
    let connections: DataSource[]
    before(
        async () =>
            (connections = await createTestingConnections({
                entities: [__dirname + "/entity/*{.js,.ts}"],
                schemaCreate: true,
                dropSchema: true,
            })),
    )
    beforeEach(() => reloadTestingDatabases(connections))
    after(() => closeTestingConnections(connections))

    it("should give correct object in transformer.to", () =>
        Promise.all(
            connections.map(async (connection) => {
                const dummy = new Dummy()
                dummy.id = 1
                dummy.num = new WrappedNumber(3)

                await connection.getRepository(Dummy).save(dummy)

                expect(transformer.lastValue).to.be.instanceOf(WrappedNumber)
            }),
        ))

    // you can add additional tests if needed
})