Ziele Untersuchung
mit Columbo Integrität von
Datenbanken Interaktion und
Portierbarkeit Ergonomie der
Schnittstellen

Angebot Produkte Projekt Beratung

Mittel Analytik Modellierung Sprachen Algebra Logik Hardware Denken Kreativität

Zusammenhänge Gesellschaft Wirtschaft Branche Firma


products/sources/formale Sprachen/C/Firefox/testing/xpcshell/node-ws/test/ (Browser von der Mozilla Stiftung Version 136.0.1^©) Datei vom 10.2.2025 mit Größe 11 kB

Quelle sender.test.js Sprache: JAVA

'use strict';

const assert = require('assert');

const extension = require('../lib/extension');
const PerMessageDeflate = require('../lib/permessage-deflate');
const Sender = require('../lib/sender');
const { EMPTY_BUFFER } = require('../lib/constants');

class MockSocket {
  constructor({ write } = {}) {
    this.readable = true;
    this.writable = true;

    if (write) this.write = write;
  }

  cork() {}
  write() {}
  uncork() {}
}

describe('Sender', () => {
  describe('.frame', () => {
    it('does not mutate the input buffer if data is `readOnly`', () => {
      const buf = Buffer.from([1, 2, 3, 4, 5]);

      Sender.frame(buf, {
        readOnly: true,
        rsv1: false,
        mask: true,
        opcode: 2,
        fin: true
      });

      assert.ok(buf.equals(Buffer.from([1, 2, 3, 4, 5])));
    });

    it('honors the `rsv1` option', () => {
      const list = Sender.frame(EMPTY_BUFFER, {
        readOnly: false,
        mask: false,
        rsv1: true,
        opcode: 1,
        fin: true
      });

      assert.strictEqual(list[0][0] & 0x40, 0x40);
    });

    it('accepts a string as first argument', () => {
      const list = Sender.frame('€', {
        readOnly: false,
        rsv1: false,
        mask: false,
        opcode: 1,
        fin: true
      });

      assert.deepStrictEqual(list[0], Buffer.from('8103', 'hex'));
      assert.deepStrictEqual(list[1], Buffer.from('e282ac', 'hex'));
    });
  });

  describe('#send', () => {
    it('compresses data if compress option is enabled', (done) => {
      const chunks = [];
      const perMessageDeflate = new PerMessageDeflate();
      const mockSocket = new MockSocket({
        write: (chunk) => {
          chunks.push(chunk);
          if (chunks.length !== 6) return;

          assert.strictEqual(chunks[0].length, 2);
          assert.strictEqual(chunks[0][0] & 0x40, 0x40);

          assert.strictEqual(chunks[2].length, 2);
          assert.strictEqual(chunks[2][0] & 0x40, 0x40);

          assert.strictEqual(chunks[4].length, 2);
          assert.strictEqual(chunks[4][0] & 0x40, 0x40);
          done();
        }
      });
      const sender = new Sender(mockSocket, {
        'permessage-deflate': perMessageDeflate
      });

      perMessageDeflate.accept([{}]);

      const options = { compress: true, fin: true };
      const array = new Uint8Array([0x68, 0x69]);

      sender.send(array.buffer, options);
      sender.send(array, options);
      sender.send('hi', options);
    });

    describe('when context takeover is disabled', () => {
      it('honors the compression threshold', (done) => {
        const chunks = [];
        const perMessageDeflate = new PerMessageDeflate();
        const mockSocket = new MockSocket({
          write: (chunk) => {
            chunks.push(chunk);
            if (chunks.length !== 2) return;

            assert.strictEqual(chunks[0].length, 2);
            assert.notStrictEqual(chunk[0][0] & 0x40, 0x40);
            assert.strictEqual(chunks[1], 'hi');
            done();
          }
        });
        const sender = new Sender(mockSocket, {
          'permessage-deflate': perMessageDeflate
        });
        const extensions = extension.parse(
          'permessage-deflate; client_no_context_takeover'
        );

        perMessageDeflate.accept(extensions['permessage-deflate']);

        sender.send('hi', { compress: true, fin: true });
      });

      it('compresses all fragments of a fragmented message', (done) => {
        const chunks = [];
        const perMessageDeflate = new PerMessageDeflate({ threshold: 3 });
        const mockSocket = new MockSocket({
          write: (chunk) => {
            chunks.push(chunk);
            if (chunks.length !== 4) return;

            assert.strictEqual(chunks[0].length, 2);
            assert.strictEqual(chunks[0][0] & 0x40, 0x40);
            assert.strictEqual(chunks[1].length, 9);

            assert.strictEqual(chunks[2].length, 2);
            assert.strictEqual(chunks[2][0] & 0x40, 0x00);
            assert.strictEqual(chunks[3].length, 4);
            done();
          }
        });
        const sender = new Sender(mockSocket, {
          'permessage-deflate': perMessageDeflate
        });
        const extensions = extension.parse(
          'permessage-deflate; client_no_context_takeover'
        );

        perMessageDeflate.accept(extensions['permessage-deflate']);

        sender.send('123', { compress: true, fin: false });
        sender.send('12', { compress: true, fin: true });
      });

      it('does not compress any fragments of a fragmented message', (done) => {
        const chunks = [];
        const perMessageDeflate = new PerMessageDeflate({ threshold: 3 });
        const mockSocket = new MockSocket({
          write: (chunk) => {
            chunks.push(chunk);
            if (chunks.length !== 4) return;

            assert.strictEqual(chunks[0].length, 2);
            assert.strictEqual(chunks[0][0] & 0x40, 0x00);
            assert.strictEqual(chunks[1].length, 2);

            assert.strictEqual(chunks[2].length, 2);
            assert.strictEqual(chunks[2][0] & 0x40, 0x00);
            assert.strictEqual(chunks[3].length, 3);
            done();
          }
        });
        const sender = new Sender(mockSocket, {
          'permessage-deflate': perMessageDeflate
        });
        const extensions = extension.parse(
          'permessage-deflate; client_no_context_takeover'
        );

        perMessageDeflate.accept(extensions['permessage-deflate']);

        sender.send('12', { compress: true, fin: false });
        sender.send('123', { compress: true, fin: true });
      });

      it('compresses empty buffer as first fragment', (done) => {
        const chunks = [];
        const perMessageDeflate = new PerMessageDeflate({ threshold: 0 });
        const mockSocket = new MockSocket({
          write: (chunk) => {
            chunks.push(chunk);
            if (chunks.length !== 4) return;

            assert.strictEqual(chunks[0].length, 2);
            assert.strictEqual(chunks[0][0] & 0x40, 0x40);
            assert.strictEqual(chunks[1].length, 5);

            assert.strictEqual(chunks[2].length, 2);
            assert.strictEqual(chunks[2][0] & 0x40, 0x00);
            assert.strictEqual(chunks[3].length, 6);
            done();
          }
        });
        const sender = new Sender(mockSocket, {
          'permessage-deflate': perMessageDeflate
        });
        const extensions = extension.parse(
          'permessage-deflate; client_no_context_takeover'
        );

        perMessageDeflate.accept(extensions['permessage-deflate']);

        sender.send(Buffer.alloc(0), { compress: true, fin: false });
        sender.send('data', { compress: true, fin: true });
      });

      it('compresses empty buffer as last fragment', (done) => {
        const chunks = [];
        const perMessageDeflate = new PerMessageDeflate({ threshold: 0 });
        const mockSocket = new MockSocket({
          write: (chunk) => {
            chunks.push(chunk);
            if (chunks.length !== 4) return;

            assert.strictEqual(chunks[0].length, 2);
            assert.strictEqual(chunks[0][0] & 0x40, 0x40);
            assert.strictEqual(chunks[1].length, 10);

            assert.strictEqual(chunks[2].length, 2);
            assert.strictEqual(chunks[2][0] & 0x40, 0x00);
            assert.strictEqual(chunks[3].length, 1);
            done();
          }
        });
        const sender = new Sender(mockSocket, {
          'permessage-deflate': perMessageDeflate
        });
        const extensions = extension.parse(
          'permessage-deflate; client_no_context_takeover'
        );

        perMessageDeflate.accept(extensions['permessage-deflate']);

        sender.send('data', { compress: true, fin: false });
        sender.send(Buffer.alloc(0), { compress: true, fin: true });
      });
    });
  });

  describe('#ping', () => {
    it('works with multiple types of data', (done) => {
      const perMessageDeflate = new PerMessageDeflate();
      let count = 0;
      const mockSocket = new MockSocket({
        write: (data) => {
          if (++count < 3) return;

          if (count % 2) {
            assert.ok(data.equals(Buffer.from([0x89, 0x02])));
          } else if (count < 8) {
            assert.ok(data.equals(Buffer.from([0x68, 0x69])));
          } else {
            assert.strictEqual(data, 'hi');
            done();
          }
        }
      });
      const sender = new Sender(mockSocket, {
        'permessage-deflate': perMessageDeflate
      });

      perMessageDeflate.accept([{}]);

      const array = new Uint8Array([0x68, 0x69]);

      sender.send('foo', { compress: true, fin: true });
      sender.ping(array.buffer, false);
      sender.ping(array, false);
      sender.ping('hi', false);
    });
  });

  describe('#pong', () => {
    it('works with multiple types of data', (done) => {
      const perMessageDeflate = new PerMessageDeflate();
      let count = 0;
      const mockSocket = new MockSocket({
        write: (data) => {
          if (++count < 3) return;

          if (count % 2) {
            assert.ok(data.equals(Buffer.from([0x8a, 0x02])));
          } else if (count < 8) {
            assert.ok(data.equals(Buffer.from([0x68, 0x69])));
          } else {
            assert.strictEqual(data, 'hi');
            done();
          }
        }
      });
      const sender = new Sender(mockSocket, {
        'permessage-deflate': perMessageDeflate
      });

      perMessageDeflate.accept([{}]);

      const array = new Uint8Array([0x68, 0x69]);

      sender.send('foo', { compress: true, fin: true });
      sender.pong(array.buffer, false);
      sender.pong(array, false);
      sender.pong('hi', false);
    });
  });

  describe('#close', () => {
    it('throws an error if the first argument is invalid', () => {
      const mockSocket = new MockSocket();
      const sender = new Sender(mockSocket);

      assert.throws(
        () => sender.close('error'),
        /^TypeError: First argument must be a valid error code number$/
      );

      assert.throws(
        () => sender.close(1004),
        /^TypeError: First argument must be a valid error code number$/
      );
    });

    it('throws an error if the message is greater than 123 bytes', () => {
      const mockSocket = new MockSocket();
      const sender = new Sender(mockSocket);

      assert.throws(
        () => sender.close(1000, 'a'.repeat(124)),
        /^RangeError: The message must not be greater than 123 bytes$/
      );
    });

    it('should consume all data before closing', (done) => {
      const perMessageDeflate = new PerMessageDeflate();

      let count = 0;
      const mockSocket = new MockSocket({
        write: (data, cb) => {
          count++;
          if (cb) cb();
        }
      });
      const sender = new Sender(mockSocket, {
        'permessage-deflate': perMessageDeflate
      });

      perMessageDeflate.accept([{}]);

      sender.send('foo', { compress: true, fin: true });
      sender.send('bar', { compress: true, fin: true });
      sender.send('baz', { compress: true, fin: true });

      sender.close(1000, undefined, false, () => {
        assert.strictEqual(count, 8);
        done();
      });
    });
  });
});

quality95%

¤ Dauer der Verarbeitung: 0.5 Sekunden ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.