text: import BaseObject from '../../../../src/ol/Object.js';
  import {listen} from '../../../../src/ol/events.js';
  
  describe('ol.Object', function () {
    let o;
    beforeEach(function () {
      o = new BaseObject();
    });
  
    describe('get, set and unset', function () {
      describe('get an unset property', function () {
        let v;
        beforeEach(function () {
          v = o.get('k');
        });
  
        it('returns undefined', function () {
          expect(v).to.be(undefined);
        });
      });
  
      describe('get a set property', function () {
        let v;
        beforeEach(function () {
          o.set('k', 1);
          v = o.get('k');
        });
  
        it('returns expected value', function () {
          expect(v).to.eql(1);
        });
      });
  
      describe('unset a set property', function () {
        beforeEach(function () {
          o.set('k', 1);
        });
  
        it('returns undefined', function () {
          const v = o.unset('k');
          expect(v).to.be(undefined);
        });
      });
    });
  
    describe('#get()', function () {
      it('does not return values that are not explicitly set', function () {
        const o = new BaseObject();
        expect(o.get('constructor')).to.be(undefined);
        expect(o.get('hasOwnProperty')).to.be(undefined);
        expect(o.get('isPrototypeOf')).to.be(undefined);
        expect(o.get('propertyIsEnumerable')).to.be(undefined);
        expect(o.get('toLocaleString')).to.be(undefined);
        expect(o.get('toString')).to.be(undefined);
        expect(o.get('valueOf')).to.be(undefined);
      });
    });
  
    describe('#set()', function () {
      it('can be used with arbitrary names', function () {
        const o = new BaseObject();
  
        o.set('set', 'sat');
        expect(o.get('set')).to.be('sat');
  
        o.set('get', 'got');
        expect(o.get('get')).to.be('got');
  
        o.set('toString', 'string');
        expect(o.get('toString')).to.be('string');
        expect(typeof o.toString).to.be('function');
      });
    });
  
    describe('#getKeys()', function () {
      it('returns property names set at construction', function () {
        const o = new BaseObject({
          prop1: 'val1',
          prop2: 'val2',
          toString: 'string',
          get: 'foo',
        });
  
        const keys = o.getKeys();
        expect(keys.length).to.be(4);
        expect(keys.sort()).to.eql(['get', 'prop1', 'prop2', 'toString']);
      });
    });
  
    describe('setProperties', function () {
      it('sets multiple values at once', function () {
        o.setProperties({
          k1: 1,
          k2: 2,
        });
        expect(o.get('k1')).to.eql(1);
        expect(o.get('k2')).to.eql(2);
  
        const keys = o.getKeys().sort();
        expect(keys).to.eql(['k1', 'k2']);
      });
    });
  
    describe('hasProperties', function () {
      it('has no properties after creation', function () {
        expect(o.hasProperties()).to.eql(false);
      });
  
      it('has properties after set', function () {
        o.set('foo', 1);
        expect(o.hasProperties()).to.eql(true);
      });
  
      it('has no properties after unset all', function () {
        o.unset('foo');
        expect(o.hasProperties()).to.eql(false);
      });
    });
  
    describe('notify', function () {
      let listener1, listener2;
  
      beforeEach(function () {
        listener1 = sinon.spy();
        listen(o, 'change:k', listener1);
  
        listener2 = sinon.spy();
        listen(o, 'propertychange', listener2);
      });
  
      it('dispatches events', function () {
        o.notify('k', 1);
        expect(listener1.calledOnce).to.be(true);
        const args = listener1.firstCall.args;
        expect(args).to.have.length(1);
        const event = args[0];
        expect(event.key).to.be('k');
        expect(event.oldValue).to.be(1);
      });
  
      it('dispatches generic change events to bound objects', function () {
        o.notify('k', 1);
        expect(listener2.calledOnce).to.be(true);
        const args = listener2.firstCall.args;
        expect(args).to.have.length(1);
        const event = args[0];
        expect(event.key).to.be('k');
        expect(event.oldValue).to.be(1);
      });
    });
  
    describe('set', function () {
      let listener1, listener2;
  
      beforeEach(function () {
        listener1 = sinon.spy();
        listen(o, 'change:k', listener1);
  
        listener2 = sinon.spy();
        listen(o, 'propertychange', listener2);
      });
  
      it('dispatches events to object', function () {
        o.set('k', 1);
        expect(listener1.called).to.be(true);
  
        expect(o.getKeys()).to.eql(['k']);
      });
  
      it('dispatches generic change events to object', function () {
        o.set('k', 1);
        expect(listener2.calledOnce).to.be(true);
        const args = listener2.firstCall.args;
        expect(args).to.have.length(1);
        const event = args[0];
        expect(event.key).to.be('k');
      });
  
      it('dispatches events only if the value is different', function () {
        o.set('k', 1);
        o.set('k', 1);
        expect(listener1.calledOnce).to.be(true);
        expect(listener2.calledOnce).to.be(true);
      });
    });
  
    describe('setter', function () {
      beforeEach(function () {
        o.setX = function (x) {
          this.set('x', x);
        };
        sinon.spy(o, 'setX');
      });
  
      it('does not call the setter', function () {
        o.set('x', 1);
        expect(o.get('x')).to.eql(1);
        expect(o.setX.called).to.be(false);
  
        expect(o.getKeys()).to.eql(['x']);
      });
    });
  
    describe('getter', function () {
      beforeEach(function () {
        o.getX = function () {
          return 1;
        };
        sinon.spy(o, 'getX');
      });
  
      it('does not call the getter', function () {
        expect(o.get('x')).to.be(undefined);
        expect(o.getX.called).to.be(false);
      });
    });
  
    describe('create with options', function () {
      it('sets the property', function () {
        const o = new BaseObject({k: 1});
        expect(o.get('k')).to.eql(1);
  
        expect(o.getKeys()).to.eql(['k']);
      });
    });
  
    describe('case sensitivity', function () {
      let listener1, listener2;
  
      beforeEach(function () {
        listener1 = sinon.spy();
        listen(o, 'change:k', listener1);
        listener2 = sinon.spy();
        listen(o, 'change:K', listener2);
      });
  
      it('dispatches the expected event', function () {
        o.set('K', 1);
        expect(listener1.called).to.be(false);
        expect(listener2.called).to.be(true);
  
        expect(o.getKeys()).to.eql(['K']);
      });
    });
  });
  