C# NServiceBus:测试是否同时发布事件和引发异常
我在我们的一项服务中遇到了如下代码:C# NServiceBus:测试是否同时发布事件和引发异常,c#,unit-testing,nservicebus,C#,Unit Testing,Nservicebus,我在我们的一项服务中遇到了如下代码: try { // Step 1: collect underpants. } catch (Exception ex) { // If this is the last retry we'll raise an event. if (Bus.IsLastRetry()) { PublishFailedEvent(ex); } // But we'll also send the error t
try
{
// Step 1: collect underpants.
}
catch (Exception ex)
{
// If this is the last retry we'll raise an event.
if (Bus.IsLastRetry())
{
PublishFailedEvent(ex);
}
// But we'll also send the error to the error queue no matter what.
throw;
}
Test.Handler(bus => new Processor() { Bus = bus })
.ExpectPublish<IFailedEvent>()
.OnMessage<ISomeHappenedEvent>();
下面是一个测试:
try
{
// Step 1: collect underpants.
}
catch (Exception ex)
{
// If this is the last retry we'll raise an event.
if (Bus.IsLastRetry())
{
PublishFailedEvent(ex);
}
// But we'll also send the error to the error queue no matter what.
throw;
}
Test.Handler(bus => new Processor() { Bus = bus })
.ExpectPublish<IFailedEvent>()
.OnMessage<ISomeHappenedEvent>();
Test.Handler(总线=>newprocessor(){bus=bus})
.publish()
.OnMessage();
因为我们在发布测试失败后立即抛出。有没有办法测试FailedEvent是否已发布并引发异常?只需将对test()的调用包装在一个try catch中,然后针对异常进行断言。根据NSB的版本,处理程序可能会引发TargetInvocationException,您需要对其进行查询以获得内部异常
try
{
Test.Handler(bus => new Processor() { Bus = bus }).OnMessage<ISomeHappenedEvent>();
}
catch (MyExpectedException ex)
{
// Asserts
...
}
试试看
{
Handler(bus=>newprocessor(){bus=bus}).OnMessage();
}
捕获(MyExpectedException ex)
{
//断言
...
}
或者
试试看
{
Handler(bus=>newprocessor(){bus=bus}).OnMessage();
}
捕获(目标异常)
{
//针对ex.InnerException的断言
...
}
只需将对Test()的调用包装在try catch中,然后针对异常断言即可。根据NSB的版本,处理程序可能会引发TargetInvocationException,您需要对其进行查询以获得内部异常
try
{
Test.Handler(bus => new Processor() { Bus = bus }).OnMessage<ISomeHappenedEvent>();
}
catch (MyExpectedException ex)
{
// Asserts
...
}
试试看
{
Handler(bus=>newprocessor(){bus=bus}).OnMessage();
}
捕获(MyExpectedException ex)
{
//断言
...
}
或者
试试看
{
Handler(bus=>newprocessor(){bus=bus}).OnMessage();
}
捕获(目标异常)
{
//针对ex.InnerException的断言
...
}
如果使用,还可以使用属性来测试预期的异常
[Test]
[ExpectedException(typeof(MyException))]
public void it_should_throw_attribute()
{
Assert.Fail();
}
或者,如果您更愿意使用,您也可以使用它并检查抛出的异常的确切类型,或者只检查基本异常,并进行进一步检查,例如conaining InnerException、Message、
[Test]
public void it_should_throw_exactly()
{
Action actionToTest = () => { throw new MyException(); };
actionToTest.ShouldThrowExactly<MyException>();
}
[Test]
public void it_should_throw()
{
Action actionToTest = () => { throw new MyException(); };
actionToTest.ShouldThrow<Exception>();
}
[测试]
公之于众它应该扔它正好()
{
Action actionToTest=()=>{抛出新的MyException();};
actionToTest.shouldThrowectly();
}
[测试]
公开作废它应该扔()
{
Action actionToTest=()=>{抛出新的MyException();};
actionToTest.ShouldThrow();
}
如果使用,还可以使用属性来测试预期的异常
[Test]
[ExpectedException(typeof(MyException))]
public void it_should_throw_attribute()
{
Assert.Fail();
}
或者,如果您更愿意使用,您也可以使用它并检查抛出的异常的确切类型,或者只检查基本异常,并进行进一步检查,例如conaining InnerException、Message、
[Test]
public void it_should_throw_exactly()
{
Action actionToTest = () => { throw new MyException(); };
actionToTest.ShouldThrowExactly<MyException>();
}
[Test]
public void it_should_throw()
{
Action actionToTest = () => { throw new MyException(); };
actionToTest.ShouldThrow<Exception>();
}
[测试]
公之于众它应该扔它正好()
{
Action actionToTest=()=>{抛出新的MyException();};
actionToTest.shouldThrowectly();
}
[测试]
公开作废它应该扔()
{
Action actionToTest=()=>{抛出新的MyException();};
actionToTest.ShouldThrow();
}
如果处理程序引发异常,则不会检查期望值。为了测试这一点,您可以向处理程序引入一个布尔标志,并将测试分为两个测试。i、 e
[Test]
public void it_should_publish_event()
{
Test.Handler(bus => new Processor() { Bus = bus, DoNotThrow = true })
.ExpectPublish<IFailedEvent>()
.OnMessage<ISomeHappenedEvent>();
}
[Test, ExpectedException(typeof(YourException))]
public void it_should_throw()
{
Test.Handler(bus => new Processor() { Bus = bus })
.OnMessage<ISomeHappenedEvent>();
}
[测试]
public void it\u应该发布\u事件()
{
Handler(bus=>newprocessor(){bus=bus,DoNotThrow=true})
.publish()
.OnMessage();
}
[Test,ExpectedException(typeof(YourException))]
公开作废它应该扔()
{
Handler(bus=>newprocessor(){bus=bus})
.OnMessage();
}
请注意,如果使用DTC或发件箱配置传输,则如果处理程序中引发异常,则不会发布此事件(除非发布配置为立即分派) 如果处理程序抛出异常,则不会检查期望值。为了测试这一点,您可以向处理程序引入一个布尔标志,并将测试分为两个测试。i、 e
[Test]
public void it_should_publish_event()
{
Test.Handler(bus => new Processor() { Bus = bus, DoNotThrow = true })
.ExpectPublish<IFailedEvent>()
.OnMessage<ISomeHappenedEvent>();
}
[Test, ExpectedException(typeof(YourException))]
public void it_should_throw()
{
Test.Handler(bus => new Processor() { Bus = bus })
.OnMessage<ISomeHappenedEvent>();
}
[测试]
public void it\u应该发布\u事件()
{
Handler(bus=>newprocessor(){bus=bus,DoNotThrow=true})
.publish()
.OnMessage();
}
[Test,ExpectedException(typeof(YourException))]
公开作废它应该扔()
{
Handler(bus=>newprocessor(){bus=bus})
.OnMessage();
}
请注意,如果使用DTC或发件箱配置传输,则如果处理程序中引发异常,则不会发布此事件(除非发布配置为立即分派) 用线,睡一会儿time@viveknuna这绝对不是一个有用的建议。使用线程。睡一会儿time@viveknuna这绝对不是一个有用的建议。