import { expect, test } from "vitest"

import {
  bigintAbs,
  bigintClamp,
  bigintIsNegative,
  bigintIsPositive,
  bigintIsZero,
  bigintMaxOf,
  bigintMinOf,
} from "#Source/basic/index.ts"

test("bigintIsZero returns expected values", () => {
  expect(bigintIsZero(0n)).toBe(true)
  expect(bigintIsZero(2n)).toBe(false)
  expect(bigintIsZero(0)).toBe(false)
})

test("bigintIsPositive returns expected values", () => {
  expect(bigintIsPositive(3n)).toBe(true)
  expect(bigintIsPositive(0n)).toBe(false)
  expect(bigintIsPositive(-1n)).toBe(false)
})

test("bigintIsNegative returns expected values", () => {
  expect(bigintIsNegative(-3n)).toBe(true)
  expect(bigintIsNegative(0n)).toBe(false)
  expect(bigintIsNegative(1n)).toBe(false)
})

test("bigintAbs returns absolute values", () => {
  expect(bigintAbs(-5n)).toBe(5n)
  expect(bigintAbs(2n)).toBe(2n)
})

test("bigintMinOf returns expected values", () => {
  expect(bigintMinOf(2n, 9n)).toBe(2n)
  expect(bigintMinOf(5n, -1n)).toBe(-1n)
})

test("bigintMaxOf returns expected values", () => {
  expect(bigintMaxOf(2n, 9n)).toBe(9n)
  expect(bigintMaxOf(5n, -1n)).toBe(5n)
})

test("bigintClamp clamps to provided bounds", () => {
  expect(bigintClamp(0n, 10n, 5n)).toBe(5n)
  expect(bigintClamp(0n, 10n, -3n)).toBe(0n)
  expect(bigintClamp(10n, 0n, 12n)).toBe(10n)
})