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• [DIR] ..
• [FILE] array_test.js
• [FILE] bool_test.js
• [FILE] define_test.js
• [FILE] double_test.js
• [FILE] enum_test.js
• [FILE] float_test.js
• [FILE] hyper_test.js
• [FILE] int_test.js
• [FILE] opaque_test.js
• [FILE] option_test.js
• [FILE] quadruple_test.js
• [FILE] string_test.js
• [FILE] struct_test.js
• [FILE] struct_union_test.js
• [FILE] union_test.js
• [FILE] unsigned-hyper_test.js
• [FILE] unsigned-int_test.js
• [FILE] var-array_test.js
• [FILE] var-opaque_test.js
• [FILE] void_test.js

Просмотр файла: hyper_test.js

let Hyper = XDR.Hyper;
import { Cursor } from '../../src/cursor';
import { cursorToArray } from '../support/io-helpers';

describe('Hyper.read', function() {
  it('decodes correctly', function() {
    expect(read([0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00])).to.eql(
      Hyper.fromString('0')
    );
    expect(read([0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01])).to.eql(
      Hyper.fromString('1')
    );
    expect(read([0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff])).to.eql(
      Hyper.fromString('-1')
    );
    expect(read([0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff])).to.eql(
      Hyper.MAX_VALUE
    );
    expect(read([0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00])).to.eql(
      Hyper.MIN_VALUE
    );
  });

  function read(bytes) {
    let io = new Cursor(bytes);
    return Hyper.read(io);
  }
});

describe('Hyper.write', function() {
  it('encodes correctly', function() {
    expect(write(Hyper.fromString('0'))).to.eql([
      0x00,
      0x00,
      0x00,
      0x00,
      0x00,
      0x00,
      0x00,
      0x00
    ]);
    expect(write(Hyper.fromString('1'))).to.eql([
      0x00,
      0x00,
      0x00,
      0x00,
      0x00,
      0x00,
      0x00,
      0x01
    ]);
    expect(write(Hyper.fromString('-1'))).to.eql([
      0xff,
      0xff,
      0xff,
      0xff,
      0xff,
      0xff,
      0xff,
      0xff
    ]);
    expect(write(Hyper.MAX_VALUE)).to.eql([
      0x7f,
      0xff,
      0xff,
      0xff,
      0xff,
      0xff,
      0xff,
      0xff
    ]);
    expect(write(Hyper.MIN_VALUE)).to.eql([
      0x80,
      0x00,
      0x00,
      0x00,
      0x00,
      0x00,
      0x00,
      0x00
    ]);
  });

  function write(value) {
    let io = new Cursor(8);
    Hyper.write(value, io);
    return cursorToArray(io);
  }
});

describe('Hyper.isValid', function() {
  it('returns true for Hyper instances', function() {
    expect(Hyper.isValid(Hyper.MIN_VALUE)).to.be.true;
    expect(Hyper.isValid(Hyper.MAX_VALUE)).to.be.true;
    expect(Hyper.isValid(Hyper.fromString('0'))).to.be.true;
    expect(Hyper.isValid(Hyper.fromString('-1'))).to.be.true;
  });

  it('returns false for non Hypers', function() {
    expect(Hyper.isValid(null)).to.be.false;
    expect(Hyper.isValid(undefined)).to.be.false;
    expect(Hyper.isValid([])).to.be.false;
    expect(Hyper.isValid({})).to.be.false;
    expect(Hyper.isValid(1)).to.be.false;
    expect(Hyper.isValid(true)).to.be.false;
  });
});

describe('Hyper.fromString', function() {
  it('works for positive numbers', function() {
    expect(Hyper.fromString('1059').toString()).to.eql('1059');
  });

  it('works for negative numbers', function() {
    expect(Hyper.fromString('-1059').toString()).to.eql('-1059');
  });

  it('fails when providing a string with a decimal place', function() {
    expect(() => Hyper.fromString('105946095601.5')).to.throw(/Invalid/);
  });
});

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