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node_modules/delegates/test/index.js 1.74 KB
2a09d1a4   liuqimichale   添加宜春 天水 宣化
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  var assert = require('assert');
  var delegate = require('..');
  
  describe('.method(name)', function(){
    it('should delegate methods', function(){
      var obj = {};
  
      obj.request = {
        foo: function(bar){
          assert(this == obj.request);
          return bar;
        }
      };
  
      delegate(obj, 'request').method('foo');
  
      obj.foo('something').should.equal('something');
    })
  })
  
  describe('.getter(name)', function(){
    it('should delegate getters', function(){
      var obj = {};
  
      obj.request = {
        get type() {
          return 'text/html';
        }
      }
  
      delegate(obj, 'request').getter('type');
  
      obj.type.should.equal('text/html');
    })
  })
  
  describe('.setter(name)', function(){
    it('should delegate setters', function(){
      var obj = {};
  
      obj.request = {
        get type() {
          return this._type.toUpperCase();
        },
  
        set type(val) {
          this._type = val;
        }
      }
  
      delegate(obj, 'request').setter('type');
  
      obj.type = 'hey';
      obj.request.type.should.equal('HEY');
    })
  })
  
  describe('.access(name)', function(){
    it('should delegate getters and setters', function(){
      var obj = {};
  
      obj.request = {
        get type() {
          return this._type.toUpperCase();
        },
  
        set type(val) {
          this._type = val;
        }
      }
  
      delegate(obj, 'request').access('type');
  
      obj.type = 'hey';
      obj.type.should.equal('HEY');
    })
  })
  
  describe('.fluent(name)', function () {
    it('should delegate in a fluent fashion', function () {
      var obj = {
        settings: {
          env: 'development'
        }
      };
  
      delegate(obj, 'settings').fluent('env');
  
      obj.env().should.equal('development');
      obj.env('production').should.equal(obj);
      obj.settings.env.should.equal('production');
    })
  })