text: const test = require('ava')
  const { create, clone, fromValues } = require('./index')
  
  const { compareVectors } = require('../../../../test/helpers/index')
  
  test('plane: clone() should return a new plane with same values', (t) => {
    const org1 = fromValues(0, 0, 0, 0)
    const obs1 = clone(org1)
    t.true(compareVectors(obs1, [0, 0, 0, 0]))
    t.not(obs1, org1)
  
    const org2 = fromValues(1, 2, 3, 4)
    const obs2 = clone(org2)
    t.true(compareVectors(obs2, [1, 2, 3, 4]))
    t.not(obs2, org2)
  
    const org3 = fromValues(-1, -2, -3, -4)
    const obs3 = clone(org3)
    t.true(compareVectors(obs3, [-1, -2, -3, -4]))
    t.not(obs3, org3)
  })
  
  test('plane: clone() with two params should update a plane with same values', (t) => {
    const org1 = create()
    const plane1 = fromValues(0, 0, 0, 0)
    const ret1 = clone(org1, plane1)
    t.true(compareVectors(org1, [0, 0, 0, 0]))
    t.true(compareVectors(ret1, [0, 0, 0, 0]))
    t.not(ret1, plane1)
    t.is(ret1, org1)
  
    const org2 = create()
    const plane2 = fromValues(1, 2, 3, 4)
    const ret2 = clone(org2, plane2)
    t.true(compareVectors(org2, [1, 2, 3, 4]))
    t.true(compareVectors(ret2, [1, 2, 3, 4]))
    t.not(ret2, plane2)
    t.is(ret2, org2)
  
    const org3 = create()
    const plane3 = fromValues(-1, -2, -3, -4)
    const ret3 = clone(org3, plane3)
    t.true(compareVectors(org3, [-1, -2, -3, -4]))
    t.true(compareVectors(ret3, [-1, -2, -3, -4]))
    t.not(ret3, plane3)
    t.is(ret3, org3)
  })
  