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我遇到了一个很奇怪的例外与NUnit的和autofixture工作进行单元测试时。Autofixture - GuardClauseException
我有不同类别,所有获得的对象作为输入,并根据这些对象(我格式化对象以JSON和提出要求)
在我的单元测试我做这做的HttpRequest:
IFixture fixture = new Fixture().Customize(new AutoMoqCustomization());
var assertion = new GuardClauseAssertion(fixture);
然后用我所有的课我这样做:
assertion.Verify(typeof(MyClass));
每次上课到现在为止通过了测试,但人们不。该测试抛出异常
Message: Ploeh.AutoFixture.Idioms.GuardClauseException : A Guard Clause test was performed
on a method that may contain a deferred iterator block, but the test failed. See the inner
exception for more details. However, because of the deferred nature of the iterator block,
this test failure may look like a false positive. Perhaps you already have a Guard Clause
in place, but in conjunction with the 'yield' keyword (if you're using C#); if this is the
case, the Guard Clause is dormant, and will first be triggered when a client starts looping
over the iterator. This doesn't adhere to the Fail Fast principle, so should be addressed.
这是内部异常:
----> Ploeh.AutoFixture.Idioms.GuardClauseException : An attempt was made to assign the
value null to the parameter "status" of the method "ChangeStatus", and no Guard Clause
prevented this. Are you missing a Guard Clause?
Method Signature: System.String ChangeStatus(Interfaces.IProject, Status)
Parameter Type: Status, , Version=1.0.0.0
Culture=neutral, PublicKeyToken=bd4b9bc26bc147ff
Declaring Type: ReleaseRepository,
Version=1.0.0.0, Culture=neutral, PublicKeyToken=bd4b9bc26bc147ff
Reflected Type: ReleaseRepository
Version=1.0.0.0, Culture=neutral, PublicKeyToken=bd4b9bc26bc147ff
----> System.InvalidOperationException : The passed project has no valid name.
在我的课的最后一个方法,看起来像这样:
if(string.IsNullOrEmpty(myObject.Name))
throw new InvalidOperationException("...");
在mentionted的方法内部异常是: (状态为枚举,但我与wasnt枚举其他对象得到了错误)
public string ChangeStatus(IObject1, IObject2, Status status)
{
// Here are the if clauses to check if something is null or not given
return client.Post(url, status);
}
我不知道,因为我做同样的,如果子句中我的所有其他类具有相同类型的对象,他们通过。
(这是与这个测试:)
assertion.Verify(typeof(myObject).GetMethods());
我不知道可能是什么原因相同。
提供一个[MCVE]可用于重现该问题。 – Nkosi
错误消息说什么? –
@MarkSeeman eroror消息sais“对一个可能包含延迟迭代器块的方法执行Guard子句测试,但测试失败。”但在其他帖子上的解决方案并没有帮助我。我是一个新的单元测试,所以很抱歉,如果它是一个容易解决的问题。 PS:对不起,我忘记了异常信息 – Nick77