MSTest 使用不同的运行时参数重复单元测试

Question

我有一个通用的测试方法，如果 INotification 我想测试所有的实现：

private async Task TestNotification(INotification notification)
{
   var result await _notificationService.SendNotification(notification);
   Assert.Something(result);
}

是否可以注释 TestNotification 方法，以便 Visual Studio 发现每个通知实例的测试？我目前只有一个测试：

[TestMethod]
public async Task TestAllNotification()
{
    var notificationTypes = typeof(INotification).Assembly.GetTypes()
        .Where(t => typeof(INotification).IsAssignableFrom(t) && !t.IsAbstract)
        .ToArray();

    foreach (var type in notificationTypes)
    {
        try
        {
            var instance = (INotification)Activator.CreateInstance(type);
            await TestNotification(instance);
        }
        catch(Exception ex)
        {
            throw new AssertFailedException(type.FullName, ex);
        }
    }
}

Answer 1

好消息！你应该会发现 MsTestV2 中的 new-ish [DynamicData] 属性可以解决你的问题：

[DynamicData(nameof(AllNotificationTypes))]
[DataTestMethod]
public async Task TestNotification(Type type)
{

}

public static Type[] AllNotificationTypes 
    => typeof(INotification).Assembly.GetTypes()
        .Where(t => typeof(INotification).IsAssignableFrom(t) && !t.IsAbstract)
        .ToArray();

https://dev.to/frannsoft/mstest-v2---new-old-kid-on-the-block is a good brief intro to the new features, but there are more gory details in posts starting at https://blogs.msdn.microsoft.com/devops/2017/07/18/extending-mstest-v2/

MSTest 使用不同的运行时参数重复单元测试

MSTest repeat unit test with different runtime parameter

c#

mstest

.net-core