import { describe, expect, test } from "vitest";
import { RandomAccessIterator, SequenceContainer, Vector, VectorIterator } from "../src";

describe(Vector.name, () => {
  test('@concepts', () => {
    expect(SequenceContainer.is(Vector.prototype, true)).toBeTruthy()
    expect(RandomAccessIterator.is(VectorIterator.prototype, true)).toBeTruthy()
  })

  test('get, set', () => {
    const vec = new Vector(0, 2)
    expect(vec.get(1)).toEqual(0)
    vec.set(1, 2)
    expect(vec.get(1)).toEqual(2)
    expect(() => vec.get(2)).toThrow()
  })
})

describe(VectorIterator.name, () => {
  test('sub', () => {
    const vector = Vector.from([1, 2, 3])
    expect(vector.begin().add(2).value).toEqual(3)
    expect(vector.begin().add(2).sub(vector.begin())).toEqual(2)
  })
})