const ChristmasMovies = require("./02. Christmas Movies_Resources");
const { beforeEach } = require("mocha");
const { expect } = require("chai");

describe("ChirstmasMovies tests", function() {
  let movies;
  beforeEach(function() {
    movies = new ChristmasMovies();
  });
  describe("constructor test", function() {
    it("should intialize property correctly", function() {
      expect(movies.movieCollection).to.deep.equal([]);
      expect(movies.watched).to.deep.equal({});
      expect(movies.actors).to.deep.equal([]);
    });
  });
  describe("buyMovie test", function() {
    it("should push correctly", function() {
      let expectedObj = {
        name: "Home Alone",
        actors: ["Macaulay Culkin", "Joe Pesci", "Daniel Stern"]
      };
      let outputMsg = movies.buyMovie("Home Alone", [
        "Macaulay Culkin",
        "Joe Pesci",
        "Daniel Stern"
      ]);
      expect(movies.movieCollection.length).to.equal(1);
      expect(movies.movieCollection[0]).to.deep.equal(expectedObj);
      expect(outputMsg).to.equal(
        "You just got Home Alone to your collection in which Macaulay Culkin, Joe Pesci, Daniel Stern are taking part!"
      );
    });
    it("should throw error", function() {
      movies.buyMovie("Home Alone", [
        "Macaulay Culkin",
        "Joe Pesci",
        "Daniel Stern"
      ]);
      let outputMsg = () =>
        movies.buyMovie("Home Alone", [
          "Macaulay Culkin",
          "Joe Pesci",
          "Daniel Stern"
        ]);
      expect(outputMsg).to.throw(
        Error,
        "You already own Home Alone in your collection!"
      );
    });
  });
  describe("discardMovie", function() {
    it("should throw error", function() {
      movies.buyMovie("Home Alone", [
        "Macaulay Culkin",
        "Joe Pesci",
        "Daniel Stern"
      ]);
      movies.buyMovie("Terminator", ["Arnold"]);
      let outputMsg = () => movies.discardMovie("American Gangster");
      expect(outputMsg).to.throw(
        Error,
        "American Gangster is not at your collection!"
      );
    });
    it("should throw error", function() {
      movies.buyMovie("Home Alone 2", ["Macaulay Culkin"]);
      movies.buyMovie("Terminator", ["Arnold"]);
      let msg = () => movies.discardMovie("Home Alone 2");
      expect(msg).to.throw(Error, "Home Alone 2 is not watched!");
      let output = movies.discardMovie(["Arnold"]);
      expect(output).to.equal("You just threw away Terminator!");
    });
  });
});