@qooxdoo/framework/source/class/qx/test/log/RingBuffer.js

The JS Framework for Coders

/* ************************************************************************

   qooxdoo - the new era of web development

   http://qooxdoo.org

   Copyright:
     2004-2009 1&1 Internet AG, Germany, http://www.1und1.de

   License:
     MIT: https://opensource.org/licenses/MIT
     See the LICENSE file in the project's top-level directory for details.

   Authors:
     * Fabian Jakobs (fjakobs)

************************************************************************ */

qx.Class.define("qx.test.log.RingBuffer", {
  extend: qx.dev.unit.TestCase,

  members: {
    setUp() {
      this.__initialLogLevel = qx.log.Logger.getLevel();
    },

    tearDown() {
      qx.log.Logger.setLevel(this.__initialLogLevel);
      if (this.appender) {
        qx.log.Logger.unregister(this.appender);
      }
      this.appender = null;
    },

    testLog() {
      this.appender = new qx.log.appender.RingBuffer();

      qx.log.Logger.setLevel("debug");
      qx.log.Logger.clear();
      qx.log.Logger.register(this.appender);
      qx.log.Logger.debug("test");

      var events = this.appender.getAllLogEvents();
      this.assertEquals(1, events.length);
      this.assertEquals("test", events[0].items[0].text);

      qx.log.Logger.unregister(this.appender);
      this.appender = null;
    },

    testExceedMaxMessages() {
      var appender = new qx.log.appender.RingBuffer(2);

      for (var i = 0; i < 10; i++) {
        appender.process({ index: i });
      }

      var events = appender.getAllLogEvents();
      this.assertEquals(2, events.length);
      this.assertEquals(8, events[0].index);
      this.assertEquals(9, events[1].index);
    },

    testRetrieveLogEvents() {
      var appender = new qx.log.appender.RingBuffer(6);

      for (var i = 0; i < 10; i++) {
        var event = {
          index: i
        };

        appender.process(event);
      }

      var events = appender.retrieveLogEvents(5);
      this.assertEquals(5, events.length);
      this.assertEquals(5, events[0].index);
      this.assertEquals(9, events[4].index);
    },

    testClearHistory() {
      var appender = new qx.log.appender.RingBuffer();
      appender.process({});
      this.assertEquals(1, appender.getAllLogEvents().length);

      appender.clearHistory();
      this.assertEquals(0, appender.getAllLogEvents().length);
    }
  }
});