import assert from 'assert'
import math from '../../src/pocomath.mjs'

describe('tuple', () => {
   it('can be created and provide its length', () => {
      assert.strictEqual(math.length(math.tuple(3, 5.2, 2)), 3)
   })

   it('does not allow unification by converting consecutive arguments', () => {
      assert.throws(() => math.tuple(3, 5.2, 2n), /TypeError.*unif/)
      // Hence, the order matters in a slightly unfortunate way,
      // but I think being a little ragged in these edge cases is OK:
      assert.throws(
         () => math.tuple(3, 2n, math.complex(5.2)),
         /TypeError.*unif/)
      assert.deepStrictEqual(
         math.tuple(3, math.complex(2n), 5.2),
         {elts: [math.complex(3), math.complex(2n), math.complex(5.2)]})
   })

   it('can be tested for zero', () => {
      assert.strictEqual(math.isZero(math.tuple(0,1)), false)
      assert.strictEqual(math.isZero(math.tuple(0n,0n,0n,0n)), true)
      assert.strictEqual(math.isZero(math.tuple(0,0.001,0)), false)
      assert.strictEqual(math.isZero(math.tuple(0,math.complex(0,0))), true)
   })

})