Quelle event-target.test.js Sprache: JAVA

'use strict';

const assert = require('assert');

const {
  CloseEvent,
  ErrorEvent,
  Event,
  MessageEvent
} = require('../lib/event-target');

describe('Event', () => {
  describe('#ctor', () => {
    it('takes a `type` argument', () => {
      const event = new Event('foo');

      assert.strictEqual(event.type, 'foo');
    });
  });

  describe('Properties', () => {
    describe('`target`', () => {
      it('is enumerable and configurable', () => {
        const descriptor = Object.getOwnPropertyDescriptor(
          Event.prototype,
          'target'
        );

        assert.strictEqual(descriptor.configurable, true);
        assert.strictEqual(descriptor.enumerable, true);
        assert.ok(descriptor.get !== undefined);
        assert.ok(descriptor.set === undefined);
      });

      it('defaults to `null`', () => {
        const event = new Event('foo');

        assert.strictEqual(event.target, null);
      });
    });

    describe('`type`', () => {
      it('is enumerable and configurable', () => {
        const descriptor = Object.getOwnPropertyDescriptor(
          Event.prototype,
          'type'
        );

        assert.strictEqual(descriptor.configurable, true);
        assert.strictEqual(descriptor.enumerable, true);
        assert.ok(descriptor.get !== undefined);
        assert.ok(descriptor.set === undefined);
      });
    });
  });
});

describe('CloseEvent', () => {
  it('inherits from `Event`', () => {
    assert.ok(CloseEvent.prototype instanceof Event);
  });

  describe('#ctor', () => {
    it('takes a `type` argument', () => {
      const event = new CloseEvent('foo');

      assert.strictEqual(event.type, 'foo');
    });

    it('takes an optional `options` argument', () => {
      const event = new CloseEvent('close', {
        code: 1000,
        reason: 'foo',
        wasClean: true
      });

      assert.strictEqual(event.type, 'close');
      assert.strictEqual(event.code, 1000);
      assert.strictEqual(event.reason, 'foo');
      assert.strictEqual(event.wasClean, true);
    });
  });

  describe('Properties', () => {
    describe('`code`', () => {
      it('is enumerable and configurable', () => {
        const descriptor = Object.getOwnPropertyDescriptor(
          CloseEvent.prototype,
          'code'
        );

        assert.strictEqual(descriptor.configurable, true);
        assert.strictEqual(descriptor.enumerable, true);
        assert.ok(descriptor.get !== undefined);
        assert.ok(descriptor.set === undefined);
      });

      it('defaults to 0', () => {
        const event = new CloseEvent('close');

        assert.strictEqual(event.code, 0);
      });
    });

    describe('`reason`', () => {
      it('is enumerable and configurable', () => {
        const descriptor = Object.getOwnPropertyDescriptor(
          CloseEvent.prototype,
          'reason'
        );

        assert.strictEqual(descriptor.configurable, true);
        assert.strictEqual(descriptor.enumerable, true);
        assert.ok(descriptor.get !== undefined);
        assert.ok(descriptor.set === undefined);
      });

      it('defaults to an empty string', () => {
        const event = new CloseEvent('close');

        assert.strictEqual(event.reason, '');
      });
    });

    describe('`wasClean`', () => {
      it('is enumerable and configurable', () => {
        const descriptor = Object.getOwnPropertyDescriptor(
          CloseEvent.prototype,
          'wasClean'
        );

        assert.strictEqual(descriptor.configurable, true);
        assert.strictEqual(descriptor.enumerable, true);
        assert.ok(descriptor.get !== undefined);
        assert.ok(descriptor.set === undefined);
      });

      it('defaults to false', () => {
        const event = new CloseEvent('close');

        assert.strictEqual(event.wasClean, false);
      });
    });
  });
});

describe('ErrorEvent', () => {
  it('inherits from `Event`', () => {
    assert.ok(ErrorEvent.prototype instanceof Event);
  });

  describe('#ctor', () => {
    it('takes a `type` argument', () => {
      const event = new ErrorEvent('foo');

      assert.strictEqual(event.type, 'foo');
    });

    it('takes an optional `options` argument', () => {
      const error = new Error('Oops');
      const event = new ErrorEvent('error', { error, message: error.message });

      assert.strictEqual(event.type, 'error');
      assert.strictEqual(event.error, error);
      assert.strictEqual(event.message, error.message);
    });
  });

  describe('Properties', () => {
    describe('`error`', () => {
      it('is enumerable and configurable', () => {
        const descriptor = Object.getOwnPropertyDescriptor(
          ErrorEvent.prototype,
          'error'
        );

        assert.strictEqual(descriptor.configurable, true);
        assert.strictEqual(descriptor.enumerable, true);
        assert.ok(descriptor.get !== undefined);
        assert.ok(descriptor.set === undefined);
      });

      it('defaults to `null`', () => {
        const event = new ErrorEvent('error');

        assert.strictEqual(event.error, null);
      });
    });

    describe('`message`', () => {
      it('is enumerable and configurable', () => {
        const descriptor = Object.getOwnPropertyDescriptor(
          ErrorEvent.prototype,
          'message'
        );

        assert.strictEqual(descriptor.configurable, true);
        assert.strictEqual(descriptor.enumerable, true);
        assert.ok(descriptor.get !== undefined);
        assert.ok(descriptor.set === undefined);
      });

      it('defaults to an empty string', () => {
        const event = new ErrorEvent('error');

        assert.strictEqual(event.message, '');
      });
    });
  });
});

describe('MessageEvent', () => {
  it('inherits from `Event`', () => {
    assert.ok(MessageEvent.prototype instanceof Event);
  });

  describe('#ctor', () => {
    it('takes a `type` argument', () => {
      const event = new MessageEvent('foo');

      assert.strictEqual(event.type, 'foo');
    });

    it('takes an optional `options` argument', () => {
      const event = new MessageEvent('message', { data: 'bar' });

      assert.strictEqual(event.type, 'message');
      assert.strictEqual(event.data, 'bar');
    });
  });

  describe('Properties', () => {
    describe('`data`', () => {
      it('is enumerable and configurable', () => {
        const descriptor = Object.getOwnPropertyDescriptor(
          MessageEvent.prototype,
          'data'
        );

        assert.strictEqual(descriptor.configurable, true);
        assert.strictEqual(descriptor.enumerable, true);
        assert.ok(descriptor.get !== undefined);
        assert.ok(descriptor.set === undefined);
      });

      it('defaults to `null`', () => {
        const event = new MessageEvent('message');

        assert.strictEqual(event.data, null);
      });
    });
  });
});

quality97%

¤ Dauer der Verarbeitung: 0.13 Sekunden (vorverarbeitet) ¤

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.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.