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import assert from "assert";import { decode } from "../src";import * as ieee754 from "ieee754";
const FLOAT32_TYPE = 0xca;const FLOAT64_TYPE = 0xcb;
const SPECS = {  POSITIVE_ZERO: +0.0,  NEGATIVE_ZERO: -0.0,  POSITIVE_INFINITY: Number.POSITIVE_INFINITY,  NEGATIVE_INFINITY: Number.NEGATIVE_INFINITY,
  POSITIVE_VALUE_1: +0.1,  POSITIVE_VALUE_2: +42,  POSITIVE_VALUE_3: +Math.PI,  POSITIVE_VALUE_4: +Math.E,  NEGATIVE_VALUE_1: -0.1,  NEGATIVE_VALUE_2: -42,  NEGATIVE_VALUE_3: -Math.PI,  NEGATIVE_VALUE_4: -Math.E,
  MAX_SAFE_INTEGER: Number.MAX_SAFE_INTEGER,  MIN_SAFE_INTEGER: Number.MIN_SAFE_INTEGER,
  MAX_VALUE: Number.MAX_VALUE,  MIN_VALUE: Number.MIN_VALUE,} as Record<string, number>;
describe("codec: float 32/64", () => {  context("float 32", () => {    for (const [name, value] of Object.entries(SPECS)) {      it(`decodes ${name} (${value})`, () => {        const buf = new Uint8Array(4);        ieee754.write(buf, value, 0, false, 23, 4);        const expected = ieee754.read(buf, 0, false, 23, 4);
        assert.deepStrictEqual(decode([FLOAT32_TYPE, ...buf]), expected, "matched sign");        assert.notDeepStrictEqual(decode([FLOAT32_TYPE, ...buf]), -expected, "unmatched sign");      });    }
    it(`decodes NaN`, () => {      const buf = new Uint8Array(4);      ieee754.write(buf, NaN, 0, false, 23, 4);      const expected = ieee754.read(buf, 0, false, 23, 4);
      assert.deepStrictEqual(decode([FLOAT32_TYPE, ...buf]), expected, "matched sign");    });  });
  context("float 64", () => {    for (const [name, value] of Object.entries(SPECS)) {      it(`decodes ${name} (${value})`, () => {        const buf = new Uint8Array(8);        ieee754.write(buf, value, 0, false, 52, 8);        const expected = ieee754.read(buf, 0, false, 52, 8);
        assert.deepStrictEqual(decode([FLOAT64_TYPE, ...buf]), expected, "matched sign");        assert.notDeepStrictEqual(decode([FLOAT64_TYPE, ...buf]), -expected, "unmatched sign");      });    }
    it(`decodes NaN`, () => {      const buf = new Uint8Array(8);      ieee754.write(buf, NaN, 0, false, 52, 8);      const expected = ieee754.read(buf, 0, false, 52, 8);
      assert.deepStrictEqual(decode([FLOAT64_TYPE, ...buf]), expected, "matched sign");    });  });});