import { describe, test, expect, Result } from './tests.uts'

export function testSet() : Result {
  return describe("Set", () => {
    test('size', () => {
      // #TEST Set.size
      const set1 = new Set<any>();
      const object1 = {};
      set1.add(42);
      set1.add('forty two');
      set1.add('forty two');
      set1.add(object1);
      console.log(set1.size);
      // expected output: 3
      // #END
      expect(set1.size).toEqual(3);
    })
    test('add', () => {
      // #TEST Set.add
      const set1 = new Set<number>();
      set1.add(42);
      set1.add(42);
      set1.add(13);
      set1.forEach((item) => {
        console.log(item);
        // expected output: 42
        // expected output: 13
      })
      // #END

      set1.forEach((item) => {
        expect(set1.has(item)).toEqual(true);
      })
      console.log(set1)
      let set2 = set1.add(66);
      console.log(set2)
    })
    test('clear', () => {
      // #TEST Set.clear
      const set1 = new Set<any>();
      set1.add(1);
      set1.add('foo');
      set1.clear();
      console.log(set1.size);
      // expected output: 0
      // #END
      expect(set1.size).toEqual(0);
    })
    test('delete', () => {
      // #TEST Set.delete
      const set1 = new Set<any>();
      set1.add(10);
      set1.add(20);

      set1.delete(10);
      console.log(set1.size) //1
      // #END

      expect(set1.size).toEqual(1);
    })
    test('has', () => {
      // #TEST Set.has
      const set1 = new Set<number>([1, 2, 3, 4, 5]);
      console.log(set1.has(1));
      // expected output: true
      
      console.log(set1.has(5));
      // expected output: true
      
      console.log(set1.has(6));
      // expected output: false
      // #END
      
      expect(set1.has(1)).toEqual(true);
      expect(set1.has(5)).toEqual(true);
      expect(set1.has(6)).toEqual(false);
    })
    test('forEach', () => {
      // #TEST Set.forEach,Set.forEach_1，Set.forEach_2
      const set1 = new Set<any>(['foo', 'bar'])
      let logSetElements = (value : any) => {
        console.log(value);
        // expected output: foo
        // expected output: bar
      }
      // #END
      logSetElements = (value : any) => {
        expect(set1.has(value)).toEqual(true);
      }
      set1.forEach(logSetElements);
    })

    test("entries", () => {
      // const mySet = new Set<string>();
      // mySet.add("foo");
      // mySet.add("bar");
      // mySet.add("baz");
      // const setIter = mySet.entries();
      // expect(setIter.next().value).toEqual(["foo", "foo"]);
      // expect(setIter.next().value).toEqual(["bar", "bar"]);
      // expect(setIter.next().value).toEqual(["baz", "baz"]);
      // expect(setIter.next().done).toEqual(true);
    })
    test("keys", () => {
      // const mySet = new Set<string>();
      // mySet.add("foo");
      // mySet.add("bar");
      // mySet.add("baz");
      // const setIter = mySet.keys();
      // expect(setIter.next().value).toEqual("foo");
      // expect(setIter.next().value).toEqual("bar");
      // expect(setIter.next().value).toEqual("baz");
      // expect(setIter.next().done).toEqual(true);
    })

    test("values", () => {
      // const mySet = new Set<string>();
      // mySet.add("foo");
      // mySet.add("bar");
      // mySet.add("baz");
      // const setIter = mySet.values();
      // expect(setIter.next().value).toEqual("foo");
      // expect(setIter.next().value).toEqual("bar");
      // expect(setIter.next().value).toEqual("baz");
      // expect(setIter.next().done).toEqual(true);
    })
  })
}