我正在尝试创建单元测试.我有班级用户:
public class User
{
public int UsersCount
{
get
{
using (MainContext context = new MainContext())
{
return context.Users.Count();
}
}
}
public Guid Id { get; set; } = Guid.NewGuid();
public string UserName { get; set; }
public string Password { get; set; }
public Contact UserContact { get; set; }
}
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我的第一个测试是UsersCount_Test测试,它测试UsersCount属性:
[TestMethod]
public void UsersCount_Test()
{
var user = new User();
var context = new MainContext();
int usersCount = context.Users.Count();
context.Users.Add(new User());
context.SaveChanges();
Assert.AreEqual(usersCount + 1, …Run Code Online (Sandbox Code Playgroud) 我有两个类Order和OrderDetail:
public class Order : Entity
{
public Order(KitchenAppContext context) : base(context)
{
}
public Order() : base()
{
}
public DateTime Date { get; set; }
public Guid MenuId { get; set; }
public virtual Menu Menu { get; set; }
public bool IsClosed { get; set; }
public decimal Price { get; set; }
public virtual int PeopleCount { get { return Details.Count; } }
public virtual List<OrderDetail> Details { get; set; } = new List<OrderDetail>();
}
public …Run Code Online (Sandbox Code Playgroud) 我有一些类和接口:
interface IAnimal { }
interface ILiveInZoo { }
class Cat : IAnimal, ILiveInZoo { }
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另外,我有一些方法和通用方法:
class Context
{
private static CompositionContainer Container = null;
public ILiveInZoo GetWhoLivesInZoo(string name)
{
if (name == "Cat")
return new Cat();
return null;
}
public void GiveFood<T>(T animal) where T : IAnimal
{
var methods = Container.GetExports<Action<T, EventArgs>, AttributeMetadata>();
//execute methods
}
}
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这是一个用例:
Context context = new Context();
var cat = context.GetWhoLivesInZoo("Cat");
if (cat is IAnimal animal)
{
context.GiveFood(animal);
}
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如您在GiveFood …
我有两个名称相同,大小写不同的属性,Title并且TITLE:
public class Product
{
[Key]
public Guid Id { get; set; }
public string Name { get; set; }
public decimal Price { get; set; }
public string Category { get; set; }
[NotMapped]
public virtual string Title { get; set; }
public string TITLE { get; set; }
}
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我在OData配置中包含Title:
ODataModelBuilder builder = new ODataConventionModelBuilder();
builder.EntitySet<Product>("Products");
builder.EntityType<Product>().Property(a => a.Title);
config.MapODataServiceRoute(
routeName: "ODataRoute",
routePrefix: null,
model: builder.GetEdmModel());
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这是OData控制器的操作:
public IHttpActionResult Get(ODataQueryOptions<Product> queryOptions, CancellationToken cancellationToken)
{ …Run Code Online (Sandbox Code Playgroud) 我们可以从浏览器,社交网络,应用程序播放mp3文件...我想在播放mp3时获取URL。一种方法是在浏览器中创建扩展。但是在其他应用程序中我们不能。这是一个示例:我去某个站点并打开一些mp3:
如果您可以看到音乐正在播放,并且有URL。当音乐开始播放时,我想获得此URL。我怎样才能做到这一点?以及如何获取在某些应用程序中播放的音乐的URL?可能吗?
我的preveus问题中的这个主题:如何在Windows事件查看器中删除和创建日志
我创建了wpf app.我用3种方式捕捉未处理的异常:
public partial class App : Application
{
public App()
{
DispatcherUnhandledException += App_DispatcherUnhandledException;
Dispatcher.UnhandledException += Dispatcher_UnhandledException;
AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
}
private void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
{
}
private void Dispatcher_UnhandledException(object sender, System.Windows.Threading.DispatcherUnhandledExceptionEventArgs e)
{
}
private void App_DispatcherUnhandledException(object sender, System.Windows.Threading.DispatcherUnhandledExceptionEventArgs e)
{
}
}
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我正在创建这样的异常:
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
throw new Exception("Test exception");
}
}
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在执行方法(Dispatcher_UnhandledException,)之后CurrentDomain_UnhandledException,App_DispatcherUnhandledException这个异常仍在抛出.Windows事件查看器正在创建这样的日志
描述:由于未处理的异常,进程终止.异常信息:System.Data.ProviderBase.DbConnectionFactory.TryGetConnection的System.InvalidOperationException(System.Data.Common.DbConnection,System.Threading.Tasks.TaskCompletionSource
1<System.Data.ProviderBase.DbConnectionInternal>, System.Data.Common.DbConnectionOptions, System.Data.ProviderBase.DbConnectionInternal, System.Data.ProviderBase.DbConnectionInternal ByRef) …
我enum喜欢这个:
enum Numbers
{
SmallerThenThree = 3,
SmallerThenFive = 5,
SmallerThenTen = 10,
}
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是否有可能获得enum具体数量的项目?例如 :
var numberFour = 4;
var enumOfNumber = (Numbers)numberFour; // There should be SmallerThenFive enum type
var numberSix = 6;
enumOfNumber = (Numbers)numberSix; // There should be SmallerThenTen enum type
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