c# – Fluent NHibernate PersistenceSpecification CheckList
发布时间:2020-12-16 01:33:28 所属栏目:百科 来源:网络整理
导读:我目前正在开展一个大学项目,我们正在使用Fluent NHibernate.我正在研究如何为我们的实体和Fluent映射创建测试. 然而,在试图弄清楚如何使用PersistenceSpecification的CheckList时,我已经走到了尽头. 单元测试失败,出现以下错误: MvcShop.Core.Tests.Entiti
我目前正在开展一个大学项目,我们正在使用Fluent NHibernate.我正在研究如何为我们的实体和Fluent映射创建测试.
然而,在试图弄清楚如何使用PersistenceSpecification的CheckList时,我已经走到了尽头. 单元测试失败,出现以下错误: MvcShop.Core.Tests.EntitiesTests.ItemTest.CanMapItem threw exception: NHibernate.PropertyValueException: not-null property references a null or transient valueMvcShop.Core.Entities.ItemPicture.Item. 测试定义为: private IList<ItemPicture> _itemPictures = new List<ItemPicture>() { new ItemPicture { Filename = "test.jpg",Title = "Test title",PrimaryPicture = true},new ItemPicture { Filename = "test2.jpg",Title = "Test title 2" } }; [TestMethod] public void CanMapItem() { new PersistenceSpecification<Item>(Session) .CheckProperty(i => i.Title,"Test item") .CheckProperty(i => i.Description,"Test description") .CheckProperty(i => i.SalesPrice,(decimal)0.0) .CheckList(i => i.ItemPictures,_itemPictures) // Complains that Item on ItemPicture is null. .VerifyTheMappings(); } 我的映射定义为: public ItemMap() { Table("Item"); Id(i => i.ItemID).GeneratedBy.Identity().Column("Item_id"); Map(i => i.ItemNo).Nullable().Length(30); Map(i => i.Title).Not.Nullable().Length(250); Map(i => i.Description).Nullable(); Map(i => i.SalesPrice).Not.Nullable().Precision(18); Map(i => i.AverageRating).Precision(18).Nullable(); Map(i => i.Visible).Not.Nullable(); Map(i => i.Weight).Not.Nullable().Precision(18); Map(i => i.TimesPurchased); Map(i => i.InStock).Not.Nullable(); Map(i => i.DateAdded).Not.Nullable(); HasManyToMany(i => i.ItemCategories).Cascade.All().Inverse().Table("ItemCategoryItem"); HasMany(i => i.ItemPictures).Cascade.AllDeleteOrphan().Inverse().LazyLoad(); HasMany(i => i.Comments).Cascade.AllDeleteOrphan().Inverse().LazyLoad(); HasMany(i => i.Ratings).Inverse().LazyLoad(); } public ItemPictureMap() { Table("ItemPicture"); Id(i => i.ItemPictureID).GeneratedBy.Identity().Column("ItemPicture_id"); Map(i => i.Title).Nullable(); Map(i => i.Filename).Not.Nullable(); Map(i => i.PrimaryPicture).Not.Nullable(); References(i => i.Item).Not.Nullable().Column("Item_id"); } 我真的无法想象如何在使用PersistenceSpecification类时填充ItemPicture的Item属性. 有任何想法吗? 最好的祝福, 解决方法
我认为在对它运行测试之前,ItemPicture必须存在于数据库中(根据Fluent文档:
http://wiki.fluentnhibernate.org/Persistence_specification_testing – 请参见该页面的最后一行.)
尝试: [TestMethod] public void CanMapItem() { var p1 = new ItemPicture { Filename = "test.jpg",PrimaryPicture = true}; var p2 = new ItemPicture { Filename = "test2.jpg",Title = "Test title 2" }; using (var tx = Session.BeginTransaction()) { Session.Save(p1); Session.Save(p2); }; new PersistenceSpecification<Item>(Session) .CheckProperty(i => i.Title,"Test item") .CheckProperty(i => i.Description,"Test description") .CheckProperty(i => i.SalesPrice,(decimal)0.0) .CheckList(i => i.ItemPictures,new List<ItemPicture> {p1,p2}); .VerifyTheMappings(); } (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |