@qooxdoo/framework/source/class/qx/test/lang/Function.js

The JS Framework for Coders

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

   qooxdoo - the new era of web development

   http://qooxdoo.org

   Copyright:
     2007-2008 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)

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

/**
 * @ignore(qx.test.Name.*)
 */

qx.Class.define("qx.test.lang.Function", {
  extend: qx.dev.unit.TestCase,

  members: {
    testGlobalEval() {
      qx.lang.Function.globalEval("var JUHU=12;");
      this.assertEquals(12, window.JUHU);

      try {
        delete window.JUHU;
      } catch (e) {
        window.JUHU = null;
      }
    },

    testFunctionWrap() {
      var context = null;
      var result = 0;

      var add = function (a, b) {
        context = this;
        return a + b;
      };

      context = null;
      result = add(1, 2);

      this.assertEquals(context, window);
      this.assertEquals(3, result);

      context = null;
      var boundAdd = qx.lang.Function.bind(add, this);
      result = boundAdd(1, 3);
      this.assertEquals(context, this);
      this.assertEquals(4, result);

      context = null;
      var addOne = qx.lang.Function.bind(add, this, 1);
      result = addOne(4);
      this.assertEquals(context, this);
      this.assertEquals(5, result);
    },

    testBindWithDisposedContext() {
      if (!this.isDebugOn()) {
        return;
      }

      var obj = new qx.core.Object();
      obj.dispose();
      var callback = function () {};

      var bound = qx.lang.Function.bind(callback, obj);
      this.assertException(function () {
        bound();
      }, qx.core.AssertionError);
    },

    testBindWithUndefinedArguments() {
      var undef;
      var callback = function (undef, arg) {
        this.assertTrue(arg);
      };
      var bound = qx.lang.Function.bind(callback, this, undef, true);
      bound();
    },

    testCreateDelayGlobalError() {
      var fail = function () {
        throw new Error("fail");
      };

      var onError = function () {
        this.resume(function () {
          qx.event.GlobalError.setErrorHandler(null, null);
        });
      };
      qx.event.GlobalError.setErrorHandler(onError, this);

      var delayed = qx.lang.Function.create(fail, {
        self: this,
        delay: 20
      });

      delayed();
      this.wait(100);
    },

    testGetName() {
      qx.Class.define("qx.test.Name", {
        extend: qx.core.Object,
        construct() {},

        properties: {
          prop: {}
        },

        statics: {
          foo() {}
        },

        members: {
          bar() {}
        },

        destruct() {}
      });

      var name = new qx.test.Name();
      this.assertEquals(
        "qx.test.Name.constructor()",
        qx.lang.Function.getName(qx.test.Name)
      );

      this.assertEquals(
        "qx.test.Name.destruct()",
        qx.lang.Function.getName(qx.test.Name.$$destructor)
      );

      name.setProp(1);
      name.getProp();
      this.assertEquals(
        "qx.test.Name.prototype.setProp()",
        qx.lang.Function.getName(name.setProp)
      );

      this.assertEquals(
        "qx.test.Name.prototype.getProp()",
        qx.lang.Function.getName(name.getProp)
      );

      this.assertEquals(
        "qx.test.Name.foo()",
        qx.lang.Function.getName(qx.test.Name.foo)
      );

      this.assertEquals(
        "qx.test.Name.prototype.bar()",
        qx.lang.Function.getName(name.bar)
      );

      this.assertEquals(
        "anonymous()",
        qx.lang.Function.getName(function () {})
      );

      function named() {}
      // the variable optimizer renames the "named" function. Only perform this
      // test if variable optimization is off.
      if (named.toString().indexOf("named") !== -1) {
        this.assertEquals("named()", qx.lang.Function.getName(named));
      }
    }
  }
});