import { describe, expect, it } from 'vitest'
import { arith } from '../src/renderer/game/data/arith'

describe('0.1.36 arith 纯解析器（CSP safe——零 Function/eval）', () => {
  it('基础四则与变量', () => {
    expect(arith('0.5 + 0.1*L', 3)).toBeCloseTo(0.8)
    expect(arith('10 * L', 2)).toBe(20)
    expect(arith('4 * L ^ 2', 3)).toBe(36)
    expect(arith('80 * 1.6^(L-1)', 3)).toBeCloseTo(204.8, 3)
    expect(arith('(1 + 2) * 3')).toBe(9)
  })
  it('非法输入→NaN（不抛异常）', () => {
    expect(Number.isNaN(arith(''))).toBe(true)
    expect(Number.isNaN(arith('L + foo'))).toBe(true)
    expect(Number.isNaN(arith('1 + '))).toBe(true)
    expect(Number.isNaN(arith('alert(1)'))).toBe(true)
    expect(Number.isNaN(arith('0.5 + 0.1*L^', 3))).toBe(true)
    expect(Number.isNaN(arith('L/0 +1', 3))).toBe(true)
  })
  it('负号/右结合幂/除零', () => {
    expect(arith('-3 + 5')).toBe(2)
    expect(arith('2 ^ 3 ^ 2')).toBe(512)
    expect(Number.isNaN(arith('1/0'))).toBe(true)
  })
  it('与旧 bonusOf 语义一致（0.5+0.1*L @3→0.8）', () => {
    expect(arith('0.5 + 0.1*L', 3)).toBeCloseTo(0.8)
    expect(arith('0.35*L', 2)).toBeCloseTo(0.7)
  })
})