montage-deserializer-spec.js

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var Montage = require("montage").Montage,
    Component = require("montage/ui/component").Component,
    logger = require("montage/core/logger").logger("deserializer-spec"),
    Deserializer = require("montage/core/serialization/deserializer/montage-deserializer").MontageDeserializer,
    deserialize = require("montage/core/serialization/deserializer/montage-deserializer").deserialize,
    Alias = require("montage/core/serialization/alias").Alias,
    Bindings = require("montage/frb"),
    Promise = require("montage/core/promise").Promise,
    objects = require("spec/serialization/testobjects-v2").objects;

logger.isError = true;

describe("serialization/montage-deserializer-spec", function () {
    var deserializer;

    beforeEach(function () {
        deserializer = new Deserializer();
    });

    describe("Montage Objects Deserialization", function () {
        it("should deserialize a class instance object", function (done) {
            var serialization = {
                    "root": {
                        "prototype": "montage",
                        "values": {
                            "number": 42,
                            "string": "a string"
                        }
                    }
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(
                serializationString, require);

            deserializer.deserializeObject().then(function (root) {
                expect(Object.getPrototypeOf(root)).toBe(Montage.prototype);
                expect(root.number).toBe(42);
                expect(root.string).toBe("a string");
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize two class instance objects", function (done) {
            var serialization = {
                    "root": {
                        "prototype": "montage",
                        "values": {
                            "oneprop": {"@": "oneprop"}
                        }
                    },

                    "oneprop": {
                        "prototype": "montage",
                        "values": {
                            "prop": 42
                        }
                    }
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(serializationString, require);

            deserializer.deserializeObject().then(function (root) {
                expect(root.oneprop.prop).toBe(42);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize an external object with a label", function (done) {
            var serialization = {
                    "root": {
                        "prototype": "montage",
                        "values": {
                            "simple": {"@": "simple"}
                        }
                    },

                    "simple": {}
                },
                serializationString = JSON.stringify(serialization),
                simple = {},
                instances = {
                    simple: simple
                };

            deserializer.init(
                serializationString, require);

            deserializer.deserializeObject(instances).then(function (root) {
                expect(root.simple).toBe(simple);
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize an object as another by providing an instance", function (done) {
            var serialization = {
                    "root": {
                        "prototype": "montage",
                        "values": {
                            "simple": {"@": "simple"}
                        }
                    },

                    "simple": {
                        "prototype": "spec/serialization/testobjects-v2[Simple]"
                    }
                },
                serializationString = JSON.stringify(serialization),
                simple = {},
                instances = {
                    simple: simple
                };

            deserializer.init(serializationString, require);

            deserializer.deserializeObject(instances).then(function (root) {
                expect(root.simple).toBe(simple);
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize to a different object", function (done) {
            var serialization = {
                    "root": {
                        "prototype": "spec/serialization/testobjects-v2[Singleton]",
                        "values": {
                            "number": 42
                        }
                    }
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(
                serializationString, require);

            deserializer.deserializeObject().then(function (root) {
                expect(root).toBe(objects.Singleton.prototype.instance);
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize an object's properties when an instance is given for that object", function (done) {
            var serialization = {
                    "root": {
                        "prototype": "montage",
                        "values": {
                            "number": 42
                        }
                    }
                },
                serializationString = JSON.stringify(serialization),
                root = {},
                instances = {
                    root: root
                };

            deserializer.init(
                serializationString, require);

            deserializer.deserializeObject(instances).then(function (root) {
                expect(root).toBe(instances.root);
                expect(instances.root.number).toBe(42);
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize an object's properties when an instance is given for that object even when the serialization doesn't have a prototype or object property", function (done) {
            var serialization = {
                    "owner": {
                        "values": {
                            "number": 42
                        }
                    }
                },
                serializationString = JSON.stringify(serialization),
                owner = {},
                instances = {
                    owner: owner
                };

            deserializer.init(
                serializationString, require);

            deserializer.deserialize(instances).then(function (objects) {
                expect(objects.owner).toBe(instances.owner);
                expect(instances.owner.number).toBe(42);
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize a complex key assignment", function (done) {
            var serialization = {
                "root": {
                    "value": {
                        "bar": {}
                    },
                    "values": {
                        "foo": 10,
                        "bar.quz": 42
                    }
                }
            },
                serializationString = JSON.stringify(serialization);
            deserialize(serializationString, require).then(function (object) {
                expect(object.foo).toBe(10);
                expect(object.bar.quz).toBe(42);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize a simple one-time assignment in normal form", function (done) {
            var serialization = {
                "root": {
                    "prototype": "montage",
                    "values": {
                        "foo": 10,
                        "bar": { "=": "foo" }
                    }
                }
            },
                serializationString = JSON.stringify(serialization);
            deserialize(serializationString, require).then(function (object) {
                expect(object.foo).toBe(10);
                expect(object.bar).toBe(10);
                object.foo = 20;
                expect(object.bar).toBe(10);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize a simple one-time assignment with a component reference", function (done) {
            var serialization = {
                "root": {
                    "prototype": "montage",
                    "values": {
                        "foo": 10,
                        "bar": { "=": "@root.foo" }
                    }
                }
            },
                serializationString = JSON.stringify(serialization);

            deserialize(serializationString, require).then(function (object) {
                expect(object.foo).toBe(10);
                expect(object.bar).toBe(10);
                object.foo = 20;
                expect(object.bar).toBe(10);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize a complex one-time assignment", function (done) {
            var serialization = {
                "root": {
                    "prototype": "montage",
                    "values": {
                        "foo": {
                            "qux": 10
                        },
                        "a": {
                            "b": 10,
                            "c": 20
                        },
                        "corge": [ 1, 2, 3, 4, 5 ],
                        "bar": { "=": "foo.qux" },
                        "qux": { "=": "foo.qux + 10" },
                        "quuz": { "=": "foo.qux + bar + @root.bar" },
                        "quux": { "=": "corge.sum()" },
                        "quuxz": { "=": 75.5 },
                        "quuxzz": { "=": true },
                        "a.b": { "=": 1 },
                        "a.c": 2
                    }
                }
            },
                serializationString = JSON.stringify(serialization);

            deserialize(serializationString, require).then(function (object) {
                expect(object.foo.qux).toBe(10);
                expect(object.bar).toBe(10);
                expect(object.qux).toBe(20);
                expect(object.quuz).toBe(30);
                expect(object.quux).toBe(15);
                object.foo.qux = 20;
                expect(object.bar).toBe(10);
                expect(object.qux).toBe(20);
                expect(object.quuxz).toBe(75.5);
                expect(object.quuxzz).toBe(true);
                expect(object.quuxzz).toBe(true);
                expect(object.a.b).toBe(1);
                expect(object.a.c).toBe(2);
                done();
            });
        });

        it("should fail deserializing an one-time assignment to a non existing object", function (done) {
            var serialization = {
                "root": {
                    "prototype": "montage",
                    "values": {
                        "foo": 10,
                        "bar": { "=": "@unknown.foo" }
                    }
                }
            },
                serializationString = JSON.stringify(serialization);

            deserialize(serializationString, require).then(function (object) {
                expect("deserialization").toBe("fail");
            }).catch(function (err) {
                expect(err).toBeDefined();
            }).finally(function () {
                done();
            });
        });


        it("should call deserializedFromSerialization function on the instantiated objects", function (done) {
            var serialization = {
                    "root": {
                        "prototype": "spec/serialization/testobjects-v2[OneProp]",
                        "values": {
                            "prop": {"@": "oneprop"}
                        }
                    },
                    "oneprop": {
                        "prototype": "spec/serialization/testobjects-v2[OneProp]"
                    }
                },
                serializationString = JSON.stringify(serialization),
                instances = {
                    root: new objects.OneProp()
                };

            deserializer.init(serializationString, require);
            deserializer.deserialize(instances).then(function (object) {
                var root = object.root,
                    oneprop = object.oneprop;

                expect(root.deserializedFromSerializationCount).toBe(0);
                expect(oneprop.deserializedFromSerializationCount).toBe(1);
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        // TODO Deprecated ?
        xit("should call deserializedFromSerialization function on the instantiated objects even if they were given as null instances", function (done) {
           var latch;
           var instances = {root: null};
           var exports;

           deserializer.init({
               root: {
                   module: "serialization/testobjects-v2",
                   name: "OneProp",
                   values: {
                       prop: {"@": "oneprop"}
                   }
               },
               oneprop: {
                   module: "serialization/testobjects-v2",
                   name: "OneProp"
               }
           }, require).deserializeObject(instances, function (objs) {
               latch = true;
               exports = objs;

               expect(exports.root.deserializedFromSerializationCount).toBe(1);
               done();
           });
        });

        it("should have isDeserializing set to true during units deserialization", function (done) {
            var serialization = {
                    "root": {
                        "prototype": "spec/serialization/testobjects-v2[OneProp]",
                        "values": {
                            "prop": 42
                        },
                        "spec": {}
                    }
                },
                serializationString = JSON.stringify(serialization),
                isDeserializing;

            deserializer.init(
                serializationString, require);

            Deserializer.defineDeserializationUnit("spec", function (deserializer, object) {
                isDeserializing = object.isDeserializing;
            });

            deserializer.deserialize().then(function (objects) {
                expect(isDeserializing).toBeTruthy();
                expect(objects.root.isDeserializing).toBeUndefined();
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });
    });

    describe("Alias deserialization", function () {
        it("should deserialize an alias", function (done) {
            var serialization = {
                    ":templateProperty": {
                        "alias": "@component:propertyName"
                    }
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(serializationString, require);
            deserializer.deserialize().then(function (objects) {
                var alias = objects[":templateProperty"];
                expect(Object.getPrototypeOf(alias)).toBe(Alias.prototype);
                expect(alias.value).toBe("@component:propertyName");
                expect(alias.componentLabel).toBe("component");
                expect(alias.propertyName).toBe("propertyName");
            }).finally(function () {
                done();
            });
        });
    });

    describe("Template properties deserialization", function () {
        it("should deserialize a template property as an alias", function (done) {
            var serialization = {
                    ":templateProperty": {
                        "alias": "@component:propertyName"
                    }
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(serializationString, require);
            deserializer.deserialize().then(function (result) {
                expect(result).toBeDefined();
            }).finally(function () {
                done();
            });
        });

        it("should not deserialize a template property as an external object", function (done) {
            var serialization = {
                    ":templateProperty": {}
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(serializationString, require);
            deserializer.deserialize().then(function () {
                expect("deserialization").toBe("failed");
            }).catch(function() {
                expect("failed").toBe("failed");
            }).finally(function () {
                done();
            });
        });

        it("should not deserialize a montage object as a template property", function (done) {
            var serialization = {
                    ":templateProperty": {
                        "prototype": "montage/ui/component"
                    }
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(serializationString, require);
            deserializer.deserialize().then(function () {
                expect("deserialization").toBe("failed");
            }).catch(function() {
                expect("failed").toBe("failed");
            }).finally(function () {
                done();
            });
        });

        it("should not deserialize a value as a template property", function (done) {
            var serialization = {
                    ":templateProperty": {
                        "value": 42
                    }
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(serializationString, require);
            deserializer.deserialize().then(function () {
                expect("deserialization").toBe("failed");
            }).catch(function() {
                expect("failed").toBe("failed");
            }).finally(function () {
                done();
            });
        });

        it("should not deserialize a regexp as a template property", function (done) {
            var serialization = {
                    ":templateProperty": {
                        "/": {"source": "regexp"}
                    }
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(serializationString, require);
            deserializer.deserialize().then(function () {
                expect("deserialization").toBe("failed");
            }).catch(function() {
                expect("failed").toBe("failed");
            }).finally(function () {
                done();
            });
        });

        it("should not deserialize a literal object as a template property", function (done) {
            var serialization = {
                    ":templateProperty": {
                        "value": {}
                    }
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(serializationString, require);
            deserializer.deserialize().then(function () {
                expect("deserialization").toBe("failed");
            }).catch(function() {
                expect("failed").toBe("failed");
            }).finally(function () {
                done();
            });
        });
    });

    describe("Object Location", function () {
        it("should deserialize using prototype: module[name]", function (done) {
            var serialization = {
                    "root": {
                        "prototype": "spec/serialization/testobjects-v2[TestobjectsV2]",
                        "values": {
                            "number": 42,
                            "string": "a string"
                        }
                    }
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(serializationString, require);
            deserializer.deserializeObject().then(function (root) {
                var info = Montage.getInfoForObject(root);
                expect(Object.getPrototypeOf(root)).toBe(objects.TestobjectsV2.prototype);
                expect(root.instance).toBeUndefined();
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize using prototype: module", function (done) {
            var serialization = {
                    "root": {
                        "prototype": "spec/serialization/testobjects-v2",
                        "values": {
                            "number": 42,
                            "string": "a string"
                        }
                    }
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(serializationString, require);
            deserializer.deserializeObject().then(function (root) {
                var info = Montage.getInfoForObject(root);

                expect(Object.getPrototypeOf(root)).toBe(objects.TestobjectsV2.prototype);

                expect(info.moduleId).toBe("spec/serialization/testobjects-v2");
                expect(info.objectName).toBe("TestobjectsV2");
                expect(info.isInstance).toBe(true);
                expect(root.instance).toBeUndefined();
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize using prototype: module-name.reel", function (done) {
            var serialization = {
                    "root": {
                        "prototype": "spec/serialization/module-name.reel",
                        "values": {
                            "number": 42,
                            "string": "a string"
                        }
                    }
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(serializationString, require);
            deserializer.deserializeObject().then(function (root) {
                var info = Montage.getInfoForObject(root);
                expect(info.moduleId).toBe("spec/serialization/module-name.reel");
                expect(info.objectName).toBe("ModuleName");
                expect(info.isInstance).toBe(true);
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize using object: module[name]", function (done) {
            var serialization = {
                    "root": {
                        "object": "spec/serialization/testobjects-v2[TestobjectsV2]",
                        "values": {
                            "number": 42,
                            "string": "a string"
                        }
                    }
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(serializationString, require);
            deserializer.deserializeObject().then(function (root) {
                var info = Montage.getInfoForObject(root);

                expect(root).toBe(objects.TestobjectsV2);
                expect(info.moduleId).toBe("spec/serialization/testobjects-v2");
                expect(info.objectName).toBe("TestobjectsV2");
                expect(info.isInstance).toBe(false);
                expect(root.type).toBeUndefined();
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize using object: module", function (done) {
            var serialization = {
                    "root": {
                        "object": "spec/serialization/testobjects-v2",
                        "values": {
                            "number": 42,
                            "string": "a string"
                        }
                    }
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(serializationString, require);
            deserializer.deserializeObject().then(function (root) {
                var info = Montage.getInfoForObject(root);

                expect(root).toBe(objects.TestobjectsV2);
                expect(info.moduleId).toBe("spec/serialization/testobjects-v2");
                expect(info.objectName).toBe("TestobjectsV2");
                expect(info.isInstance).toBe(false);
                expect(root.type).toBeUndefined();
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize using object: module.json", function (done) {
            var serialization = {
                    "root": {
                        "object": "spec/serialization/testjson.json"
                    }
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(serializationString, require);
            deserializer.deserializeObject().then(function (json) {
                expect("root" in json).toBe(true);
                expect(json.root.foo).toBe("bar");
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize using prototype: module.mjson", function (done) {
            var serialization = {
                    "root": {
                        "prototype": "spec/serialization/testmjson.mjson",
                        "values": {
                            "number": 42,
                            "string": {"<-": "'a string'"}
                        }
                    }
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(serializationString, require);
            deserializer.deserializeObject().then(function (root) {
                var info = Montage.getInfoForObject(root);
                expect(info.moduleId).toBe("core/core");
                expect(info.isInstance).toBe(true);
                expect(root.type).toBeUndefined();
                expect(root.name).toBe("RootObjectDescriptor");
                expect(root.number).toBe(42);
                expect(root.string).toBe("a string");
            }).catch(function (reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize instances using prototype: module.mjson", function (done) {
            var serialization = {
                    "root": {
                        "prototype": "montage",
                        "values": {
                            "bar": { "@": "bar" },
                            "foo": { "@": "foo" }
                        }
                    },
                    "bar": {
                        "prototype": "spec/serialization/testmjson.mjson"
                    },
                    "foo": {
                        "prototype": "spec/serialization/testmjson.mjson"
                    }
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(serializationString, require);
            deserializer.deserializeObject().then(function (root) {
                expect(root.foo).not.toBe(root.bar);
            }).catch(function (reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize using object: module.mjson", function (done) {
            var serialization = {
                    "root": {
                        "object": "spec/serialization/testmjson.mjson",
                        "values": {
                            "number": 42,
                            "string": {"<-": "'a string'"}
                        }
                    }
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(serializationString, require);
            deserializer.deserializeObject().then(function (root) {
                var info = Montage.getInfoForObject(root);
                expect(info.moduleId).toBe("core/core");
                expect(info.isInstance).toBe(true);
                expect(root.type).toBeUndefined();
                expect(root.name).toBe("RootObjectDescriptor");
                expect(root.number).toBe(42);
                expect(root.string).toBe("a string");
            }).catch(function (reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize singleton using object: module.mjson", function (done) {
            var serialization = {
                    "root": {
                        "prototype": "montage",
                        "values": {
                            "bar": { "@": "bar" },
                            "foo": { "@": "foo" }
                        }
                    },
                    "bar": {
                        "object": "spec/serialization/testmjson.mjson"
                    },
                    "foo": {
                        "object": "spec/serialization/testmjson.mjson"
                    }
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(serializationString, require);
            deserializer.deserializeObject().then(function (root) {
                expect(root.foo).toBe(root.foo);
            }).catch(function (reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize using instance after compilation", function (done) {
           var latch, objects;

            deserializer.init({
               root: {
                   prototype: "montage",
                   values: {
                       number: 15,
                       string: "string"
                   }
               }
            }, require).deserialize().then(function (objs) {
               latch = true;
               objects = objs;

               var root = objects.root,
                   info = Montage.getInfoForObject(root);

               expect(Montage.isPrototypeOf(root));
               expect(info.moduleId).toBe("core/core");
               expect(info.objectName).toBe("Montage");
               expect(info.isInstance).toBe(true);
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize using type after compilation", function (done) {
           var latch, objects;

           deserializer.init({
               root: {
                   object: "montage",
                   values: {
                       number: 15,
                       string: "string"
                   }
               }
           }, require).deserialize().then(function (objs) {
               latch = true;
               objects = objs;

               var root = objects.root,
                   info = Montage.getInfoForObject(root);

               expect(root).toBe(Montage);
               expect(info.moduleId).toBe("core/core");
               expect(info.objectName).toBe("Montage");
               expect(info.isInstance).toBe(false);
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });
    });

    describe("Module reference deserialization", function () {
        it("should deserialize a module", function (done) {
            var serialization = {
                    "root": {
                        "value": {"%": "./testobjects-v2"}
                    }
                },
                serializationString = JSON.stringify(serialization);

            deserializer.init(
                serializationString, require);

            deserializer.deserializeObject().then(function (root) {
                // module is now absolute from the root of the test package
                expect(root.id).toBe("spec/serialization/testobjects-v2");
                expect(root.require.location).toBe(require.location);
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should use the require of the package the deserializer is using", function (done) {

            require.loadPackage("spec/package-a").then(function (pkg1) {
                var serialization = {
                        "root": {
                            "value": {"%": "pass"}
                        }
                    },
                    serializationString = JSON.stringify(serialization);

                deserializer.init(
                    serializationString, pkg1);

                deserializer.deserializeObject().then(function (root) {
                    expect(root.id).toBe("pass");
                    expect(root.require.location).toBe(pkg1.location);
                }).finally(function () {
                    done();
                });
            });
        });
    });

    describe("Custom deserialization", function () {
        var customDeserialization = objects.CustomDeserialization,
            serialization = {
                "root": {
                    "prototype": "spec/serialization/testobjects-v2[CustomDeserialization]",
                    "values": {
                        "prop1": 3.14,
                        "prop2": {"<-": "@oneprop.prop"}
                    },
                    "listeners": [{
                        "type": "action",
                        "listener": {"@": "oneprop"}
                    }]
                },

                "oneprop": {
                    "prototype": "spec/serialization/testobjects-v2[OneProp]",
                    "values": {
                        "prop": 42
                    }
                }
            };

        it("should only create the object", function (done) {
            var serializationString = JSON.stringify(serialization);

            deserializer.init(
                serializationString, require);

            customDeserialization.prototype.deserializeSelf = function (deserializer) {

            };

            deserializer.deserializeObject().then(function (root) {
                expect(root.prop1).toBeNull();
                expect(root._bindingDescriptors).toBeFalsy();
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should report prototype type", function (done) {
            var serializationString = JSON.stringify(serialization),
                type,
                typeValue;

            deserializer.init(
                serializationString, require);

            customDeserialization.prototype.deserializeSelf = function (deserializer) {
                type = deserializer.getType();
                typeValue = deserializer.getTypeValue();
            };

            deserializer.deserializeObject().then(function (root) {
                expect(type).toBe("prototype");
                expect(typeValue).toBe("spec/serialization/testobjects-v2[CustomDeserialization]");
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should report object type", function (done) {
            var serialization = {
                    "root": {
                        "object": "spec/serialization/testobjects-v2[CustomDeserialization]"
                    }
                },
                serializationString = JSON.stringify(serialization),
                type,
                typeValue;

            deserializer.init(
                serializationString, require);

            customDeserialization.deserializeSelf = function (deserializer) {
                type = deserializer.getType();
                typeValue = deserializer.getTypeValue();
            };

            deserializer.deserializeObject().then(function (root) {
                expect(type).toBe("object");
                expect(typeValue).toBe("spec/serialization/testobjects-v2[CustomDeserialization]");
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should access properties", function (done) {
            var serializationString = JSON.stringify(serialization),
                prop1;

            deserializer.init(
                serializationString, require);

            customDeserialization.prototype.deserializeSelf = function (deserializer) {
                prop1 = deserializer.getProperty("prop1");
            };

            deserializer.deserializeObject().then(function (root) {
                expect(prop1).toBe(3.14);
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should only deserialize properties", function (done) {
            var serializationString = JSON.stringify(serialization);

            deserializer.init(
                serializationString, require);

            customDeserialization.prototype.deserializeSelf = function (deserializer) {
                deserializer.deserializeValues();
            };

            deserializer.deserializeObject().then(function (root) {
                expect(root.prop1).toBe(3.14);
                expect(root._bindingDescriptors).toBeFalsy();
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        xit("should deserialize properties and listeners", function (done) {
            var serializationString = JSON.stringify(serialization);

            deserializer.init(
                serializationString, require);

            customDeserialization.prototype.deserializeSelf = function (deserializer) {
                deserializer.deserializeValues();
                deserializer.deserializeUnit("listeners");
            };

            deserializer.deserializeObject().then(function (root) {
                expect(root.prop1).toBe(3.14);
                expect(root._bindingDescriptors).toBeFalsy();
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize properties and bindings", function (done) {
            var serializationString = JSON.stringify(serialization);

            deserializer.init(
                serializationString, require);

            customDeserialization.prototype.deserializeSelf = function (deserializer) {
                deserializer.deserializeValues();
                deserializer.deserializeUnit("bindings");
            };

            deserializer.deserializeObject().then(function (root) {
                expect(root.prop1).toBe(3.14);
                expect(Bindings.getBindings(root).size).toBeGreaterThan(0);
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize properties and all units", function (done) {
            var serializationString = JSON.stringify(serialization);

            deserializer.init(
                serializationString, require);

            customDeserialization.prototype.deserializeSelf = function (deserializer) {
                deserializer.deserializeValues();
                deserializer.deserializeUnits();
            };

            deserializer.deserializeObject().then(function (root) {
                expect(root.prop1).toBe(3.14);
                expect(Bindings.getBindings(root).size).toBeGreaterThan(0);
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });

        it("should deserialize into another object in an asynchronous way", function (done) {
            var serializationString = JSON.stringify(serialization),
                newRoot = {};

            deserializer.init(serializationString, require);

            customDeserialization.prototype.deserializeSelf = function (deserializer) {
                return Promise.resolve(newRoot);
            };

            deserializer.deserializeObject().then(function (root) {
                expect(root).toBe(newRoot);
            }).catch(function(reason) {
                fail(reason);
            }).finally(function () {
                done();
            });
        });
    });

    it("should load the correct module even if it's from a diferent package but with the same name", function (done) {
        var deserializer1 = new Deserializer(),
            deserializer2 = new Deserializer(),
            serialization = {
                root: {
                    prototype: "ui/main.reel"
                }
            },
            serializationString = JSON.stringify(serialization);

        require.loadPackage("spec/package-a").then(function (pkg1) {
            return require.loadPackage("spec/package-b").then(function (pkg2) {
                return deserializer1.init(serializationString, pkg1)
                .deserialize().then(function (object1) {
                    return deserializer2.init(serializationString, pkg2)
                    .deserialize().then(function (object2) {
                        expect(object1.root.name).toBe("A");
                        expect(object2.root.name).toBe("B");
                    });
                });
            }).finally(function () {
                done();
            });
        });
    });

    it("should deserialize null", function (done) {
        var serialization = {
            "a": {
                "value": null
            }
        },
        serializationString = JSON.stringify(serialization);

        deserializer.init(serializationString, require);
        deserializer.deserialize(serializationString).then(function (objects) {
            expect(objects.a).toBe(null);
        }).catch(function(reason) {
            fail(reason);
        }).finally(function () {
            done();
        });
    });

    describe("errors", function () {
        it("should fail if no require was given", function () {
            var serialization = {
                    "root": {
                        "prototype": "montage",
                        "values": {
                            "number": 42,
                            "string": "a string"
                        }
                    }
                },
                serializationString = JSON.stringify(serialization);

            try {
                deserializer.init(
                    serializationString, null);
                // should never execute
                expect(true).toBe(false);
            } catch (ex) {
                expect(ex).toBeDefined();
            }
        });

        it("should fail deserialize if serialization is malformed", function (done) {
            var serializationString = "{root:}";

            // return a promise when failling.
            deserializer.init(serializationString, require).deserialize().catch(function (ex) {
                expect(ex).toBeDefined();
            }).finally(function () {
                done();
            });
        });
    });

    describe("deserialization", function() {
        it("should deserialize a serialization string", function(done) {
            var serialization = {
                    "string": {
                        "value": "a string"
                    },

                    "number": {
                        "value": 42
                    },

                    "literal": {
                        "value": {
                            "string": "a string",
                            "number": 42
                        }
                    }
                },
                serializationString = JSON.stringify(serialization),
                expectedResult = {
                    string: "a string",
                    number: 42,
                    literal: {
                        string: "a string",
                        number: 42
                    }
                },
                deserializer = new Deserializer().init(serializationString, require);

            deserializer.deserialize().then(function(objects) {
                expect(objects).toEqual(jasmine.objectContaining(expectedResult));
            }).finally(function () {
                done();
            });
        });

        it("should deserialize an object from a serialization string", function(done) {
            var serialization = {
                    "root": {
                        "value": "a string"
                    }
                },
                serializationString = JSON.stringify(serialization),
                deserializer = new Deserializer().init(serializationString, require);

            deserializer.deserializeObject().then(function(object) {
                expect(object).toBe("a string");
            }).finally(function () {
                done();
            });
        });

        it("should deserialize an external object from a serialization string", function(done) {
            var serialization = {
                    "external": {}
                },
                userObjects = {
                    "external": {}
                },
                serializationString = JSON.stringify(serialization),
                deserializer = new Deserializer().init(serializationString, require);

            deserializer.deserialize(userObjects).then(function(objects) {
                expect(userObjects.external).toBe(objects.external);
            }).finally(function () {
                done();
            });
        });

        it("should fail deserializing a missing external object from a serialization string", function(done) {
            var serialization = {
                    "external": {}
                },
                serializationString = JSON.stringify(serialization),
                deserializer = new Deserializer().init(serializationString, require);

            deserializer.deserialize().then(function(objects) {
                expect("test").toBe("fail");
            }, function() {
                expect(true).toBe(true);
            }).finally(function () {
                done();
            });
        });

        it("should be oblivious to Object.prototype aditions", function(done) {
            Object.defineProperty(Object.prototype, "clear", {
                value: function() {},
                writable: true,
                configurable: true
            });

            var serialization = {
                    "clear": {
                        "value": "a string"
                    }
                },
                serializationString = JSON.stringify(serialization),
                deserializer = new Deserializer().init(serializationString, require);

            deserializer.deserialize().then(function(object) {
                delete Object.prototype.clear;
                expect(object.clear).toBe("a string");
            }).finally(function () {
                done();
            });
        });

        describe("shorthand", function() {
            it("should deserialize an object from a serialization string", function(done) {
                var serialization = {
                        "root": {
                            "value": "a string"
                        }
                    },
                    serializationString = JSON.stringify(serialization);

                deserialize(serializationString, require).then(function(object) {
                    expect(object).toEqual("a string");
                }).finally(function () {
                    done();
                });
            });
        });

        describe("errors", function() {
            it("should warn about invalid format", function(done) {
                // property name is missing quotes
                var serializationString = '{string: "a string"}';

                new Promise(function (resolve, reject) {
                    resolve(deserialize(serializationString, require)); // will fail
                }).then(function(objects) {
                    // never executed
                }, function(reason) {
                    expect(reason).toBeDefined();
                }).finally(function () {
                    done();
                });
            })
        });
    });

    it("handles circular references", function (done) {
        var serialization = {
            "root": {
                "object": "spec/serialization/circular/a.mjson"
            }
        };
        var deserializer = new Deserializer().init(JSON.stringify(serialization), require);
        deserializer.deserializeObject()
            .then(function (result) {
                expect(result.bRef.myBProp).toBe("bar");
                expect(result.bRef.aRef).toBe(result);
            }).catch(function (err) {
                fail(err);
            }).finally(function () {
                done();
            });
    });
});