import { describe, it, expect } from 'vitest'
import { toUint8, toInt8 } from '../../src/lib/utilities/math-utilities'

describe('toUint8', () => {
    it('min interval value should get 0', () => {
        expect(toUint8(-1, -1, 1)).toBe(0)
    })
    it('middle interval value should get 128', () => {
        expect(toUint8(0, -1, 1)).toBe(128)
    })

    it('max interval value should get 255', () => {
        expect(toUint8(1, -1, 1)).toBe(255)
    })

    it('min value should be clamped', () => {
        expect(toUint8(-2, -1, 1)).toBe(0)
    })

    it('max value should be clamped', () => {
        expect(toUint8(2, -1, 1)).toBe(255)
    })
})

describe('toInt8', () => {
    it('min interval value should get -128', () => {
        expect(toInt8(-1, -1, 1)).toBe(-128)
    })
    it('middle interval value should get 0', () => {
        expect(toInt8(0, -1, 1)).toBe(0)
    })

    it('max interval value should get 127', () => {
        expect(toInt8(1, -1, 1)).toBe(127)
    })

    it('min value should be clamped', () => {
        expect(toInt8(-2, -1, 1)).toBe(-128)
    })

    it('max value should be clamped', () => {
        expect(toInt8(2, -1, 1)).toBe(127)
    })
})