import { expect, test, vi } from "vitest"

import { randomNumber } from "#Source/random/index.ts"

test("randomNumber returns expected output across ranges and available random sources", () => {
  const defaultValue = randomNumber()
  expect(defaultValue).toBeGreaterThanOrEqual(0)
  expect(defaultValue).toBeLessThan(1)

  const singleBoundValue = randomNumber(5)
  expect(singleBoundValue).toBeGreaterThanOrEqual(0)
  expect(singleBoundValue).toBeLessThan(5)

  const reversedRangeValue = randomNumber(10, 3)
  expect(reversedRangeValue).toBeGreaterThanOrEqual(3)
  expect(reversedRangeValue).toBeLessThan(10)

  expect(randomNumber(4, 4)).toBe(4)
  expect(() => randomNumber(Number.NaN)).toThrow(TypeError)
  expect(() => randomNumber(Number.POSITIVE_INFINITY)).toThrow(TypeError)
  expect(() => randomNumber(1, Number.NEGATIVE_INFINITY)).toThrow(TypeError)

  vi.stubGlobal("crypto", undefined)

  try {
    const fallbackValue = randomNumber(-2, 2)
    expect(fallbackValue).toBeGreaterThanOrEqual(-2)
    expect(fallbackValue).toBeLessThan(2)
  } finally {
    vi.unstubAllGlobals()
  }
})