import {
  compute_zscore,
  compute_zscore_adjusted,
  anthro_zscore_adjusted,
  adjust_lenhei,
  flag_zscore,
  apply_zscore_and_growthstandards
} from './z-score-helper';
import { round } from './utils'

describe('Zscore helper', () => {
  test('It computes a zscore correctly', () => {
    expect(compute_zscore(50, 56.4833, 1, 0.03492)).toEqual(((50 / 56.4833)**1 - 1) / (0.03492 * 1))
  });
  test('It computes an adjusted zscore correctly', () => {
    expect(round(compute_zscore_adjusted(17, 16.433, -0.3387, 0.14051),2)).toEqual(0.24)
  });
  test('It computes apply zscore and growthstandards correctly', () => {
    expect(apply_zscore_and_growthstandards(compute_zscore_adjusted,'weianthro',1522,2, 17 )).toEqual(0.24)
  });
})