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

describe("github issues > #80 repository.save fails when empty array is sent to the method", () => {
    let connections: DataSource[]
    before(
        async () =>
            (connections = await createTestingConnections({
                entities: [__dirname + "/entity/*{.js,.ts}"],
            })),
    )
    beforeEach(() => reloadTestingDatabases(connections))
    after(() => closeTestingConnections(connections))

    it("should persist successfully and return persisted entity", () =>
        Promise.all(
            connections.map(async (connection) => {
                const post = new Post()
                post.title = "Hello Post #1"
                const returnedPost = await connection.manager.save(post)

                expect(returnedPost).not.to.be.undefined
                returnedPost.should.be.equal(post)
            }),
        ))

    it("should not fail if empty array is given to persist method", () =>
        Promise.all(
            connections.map(async (connection) => {
                const posts: Post[] = []
                const returnedPosts = await connection.manager.save(posts)
                expect(returnedPosts).not.to.be.undefined
                returnedPosts.should.be.equal(posts)
            }),
        ))
})