extjs-gpl/packages/core/test/specs/data/proxy/Proxy.js

GPL licensed version of Sencha Ext JS

describe("Ext.data.proxy.Proxy", function() {
    var proxy,
        Proxy = Ext.data.proxy.Proxy,
        AlienModelName   = 'spec.Alien',
        AlienModelConfig =  {
            extend: 'Ext.data.Model',
            fields: [
                {name: 'name',  type: 'string'},
                {name: 'age',   type: 'int'},
                {name: 'planet', type: 'string'}
            ]
        },
        AlienModel, HumanModel,
        HumanModelName   = 'spec.Human',
        HumanModelConfig =  {
            extend: 'Ext.data.Model',
            fields: [
                {name: 'name',  type: 'string'},
                {name: 'age',   type: 'int'},
                {name: 'planet', type: 'string', defaultValue: 'Earth'}
            ]
        };

    beforeEach(function() {
        Ext.ClassManager.enableNamespaceParseCache = false; 
        proxy = new Proxy({});
        
        AlienModel = Ext.define(AlienModelName, AlienModelConfig);
        HumanModel = Ext.define(HumanModelName, HumanModelConfig);

    });
    
    afterEach(function(){
        Ext.ClassManager.enableNamespaceParseCache = true; 
        Ext.data.Model.schema.clear();
        Ext.undefine('spec.Alien');
        Ext.undefine('spec.Human');
        
        if (proxy) {
            proxy.destroy();
        }
        
        proxy = null;
    });
    

    it("should mixin Ext.mixins.Observable", function() {
        expect(proxy.mixins.observable).toEqual(Ext.mixin.Observable.prototype);
    });

    describe("instantiation", function() {
        it("should default the batch order to create/update/destroy", function() {
            expect(proxy.getBatchOrder()).toBe('create,update,destroy');
        });
    });
    
    describe("destruction", function() {
        it("should call parent destructor", function() {
            proxy.destroy();
            
            expect(proxy.isDestroyed).toBe(true);
            
            proxy = null;
        });
    });

    describe("methods", function() {
        describe("getModel", function() {
            it ("should return the proxy model", function() {
                proxy.setModel(AlienModel);
                expect(proxy.getModel()).toEqual(AlienModel);
            });
        });

        describe("setModel", function() {
            it('should have a model equal to AlienModel', function(){
                proxy.setModel(AlienModel);
                expect(proxy.getModel()).toEqual(AlienModel);
            });

            describe("if the Reader has already been instantiated", function() {
                beforeEach(function() {
                    proxy.setReader(new Ext.data.reader.Reader({
                        model: null
                    }));

                    spyOn(proxy.getReader(), 'setModel').andReturn(true);
                });

                it("should set the Reader's Model", function() {
                    proxy.setModel(AlienModel);

                    expect(proxy.getReader().setModel).toHaveBeenCalledWith(AlienModel);
                });
            });
        });

        describe("batch", function() {
            var spy,
                batchOperations = {
                    create : [AlienModel, HumanModel],
                    update : [AlienModel]
                },
                batchListeners = {
                    complete: {
                        fn    : Ext.emptyFn,
                        scope : this
                    }
                };

            it('should run Ext.data.Batch.prototype.add 2 times', function() {
                spy = spyOn(Ext.data.Batch.prototype, 'add').andCallThrough();
                proxy.batch(batchOperations, batchListeners); 
                expect(spy.callCount).toEqual(2);
            });

            it('should run Ext.data.Batch.prototype.start 1 times', function(){
                spy = spyOn(Ext.data.Batch.prototype, 'start').andCallThrough();
                proxy.batch(batchOperations, batchListeners); 
                expect(spy.callCount).toEqual(1);
            });
        });
    });

    describe("metachange event", function () {
        function completeWithData(data) {
            Ext.Ajax.mockComplete({
                status: 200,
                responseText: Ext.JSON.encode(data)
            });
        }

        var wasCalled = false,
            successData = {
                success: true,
                data: [
                    {name: 'alex'},
                    {name: 'ben'},
                    {name: 'don'},
                    {name: 'evan'},
                    {name: 'nige'},
                    {name: 'phil'}
                ],
                metaData: {
                    root: 'data',
                    fields: ['occupation']
                }
            },
            args, proxyArg, metaArg;

        beforeEach(function () {
            MockAjaxManager.addMethods();
            proxy = new Ext.data.proxy.Ajax({
                listeners: {
                    metachange: function (proxy, meta) {
                        wasCalled = true;
                        args = arguments;
                        proxyArg = proxy;
                        metaArg = meta;
                    }
                }
            });

            proxy.read(new Ext.data.operation.Read({
                url: 'foo'
            }));
            completeWithData(successData);
        });

        afterEach(function () {
            MockAjaxManager.removeMethods();
            wasCalled = false;
            args = proxyArg = metaArg = null;
        });

        it("should call the listener", function () {
            expect(wasCalled).toBe(true);
        });

        it("should return the proxy", function () {
            expect(proxyArg).toBe(proxy);
        });

        it("should return the meta data", function () {
            expect(metaArg).toEqual(successData.metaData);
        });

        it("should return the proxy as the first arg", function () {
            expect(args[0]).toBe(proxy);
        });

        it("should return the meta data as the second arg", function () {
            expect(args[1]).toBe(metaArg);
        });
    });
    
    describe("pending operations", function() {
        var op1, op2;
        
        beforeEach(function() {
            op1 = new Ext.data.operation.Operation();
            op2 = new Ext.data.operation.Operation();
            
            spyOn(op1, 'abort');
            spyOn(op2, 'abort');
            
            proxy.pendingOperations[op1._internalId] = op1;
            proxy.pendingOperations[op2._internalId] = op2;
        });
        
        afterEach(function() {
            op1 = op2 = proxy = null;
        });
        
        describe("aborting", function() {
            beforeEach(function() {
                op1.execute();
                proxy.destroy();
            });
            
            it("should abort running operations", function() {
                expect(op1.abort).toHaveBeenCalled();
            });
            
            it("should not abort non-running operations", function() {
                expect(op2.abort).not.toHaveBeenCalled();
            });
        });
        
        describe("cleanup", function() {
            beforeEach(function() {
                proxy.destroy();
            });
            
            it("should null pendingOperations", function() {
                expect(proxy.pendingOperations).toBe(null);
            });
        });
    });
});