blocks|key|4190404|text|您需要等待对GetConfiguration的调用才能获得IActionResult对象，如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4190405|var+actionResult+=+await+controller.GetConfiguration(12);|code-block|syntax|javascript|4190406|为此，您需要将测试方法的签名也更改为异步。因此，请更改以下内容：|4190407|public+void+ConfigurationSearchGetTest()|4190408|要这样做：|4190409|public+async+Task+ConfigurationSearchGetTest()|4190410|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

You need to await the call to GetConfiguration to get the IActionResult object back as follows:

<pre><code>var actionResult = await controller.GetConfiguration(12);
</code></pre>

To do this you need to change the signature of your test method to be async as well. So change this:

<pre><code>public void ConfigurationSearchGetTest()
</code></pre>

To this:

<pre><code>public async Task ConfigurationSearchGetTest()
</code></pre>

blocks|key|4190491|text|良好的实践表明，您在控制器操作中没有太多代码要测试，而大部分逻辑都在其他地方的解耦对象中，这些对象更容易测试。话虽如此，如果您仍然想测试您的控制器，那么您需要进行测试async并等待调用。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4190492|你会遇到的一个问题是，你使用的是IActionResult，因为它允许你返回BadRequest(...)和Ok(...)。但是，由于您使用的是ASP.NET+MVC+Core2.1，因此您可能希望开始使用新的ActionResult类型。这应该有助于您的测试，因为您现在可以直接访问强类型返回值。例如：|4190493|//Assuming+your+return+type+is+`Configuration`
public+async+Task<ActionResult<Configuration>>+GetConfiguration([FromRoute]+int?+id)
{
++++try
++++{
++++++++if+(!ModelState.IsValid)
++++++++{
++++++++++++return+BadRequest(ModelState);
++++++++}

++++++++.....+//+Some+code+here

++++++++//+Note+we+are+now+returning+the+object+directly,+there+is+an+implicit+conversion+
++++++++//+done+for+you
++++++++return+configuration;
++++}
++++catch+(Exception+ex)
++++{
++++++++...+//+Some+code+here
++++}
}|code-block|syntax|javascript|4190494|注意，我们现在直接返回对象，因为有一个implicit+conversion+from+Foo+to+ActionResult|4190495|现在，您的测试可以如下所示：|4190496|[TestMethod]+
public+async+Task+ConfigurationSearchGetTest()
{
++++var+context+=+GetContextWithData();
++++var+controller+=+new+ConfigurationSearchController(context);
++++var+items+=+context.Configurations.Count();

++++//+We+now+await+the+call
++++var+actionResult+=+await+controller.GetConfiguration(12);

++++//+And+the+value+we+want+is+now+a+property+of+the+return
++++var+configuration+=+actionResult.Value;

++++Assert.IsTrue(true);
++++context.Dispose();
}|4190497|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.microsoft.com/en-us/aspnet/core/web-api/action-return-types?view=aspnetcore-2.1#actionresultt-type|1|https://docs.microsoft.com/en-us/dotnet/api/microsoft.aspnetcore.mvc.actionresult-1.op_implicit?view=aspnetcore-2.1#Microsoft_AspNetCore_Mvc_ActionResult_1_op_Implicit_TValue__Microsoft_AspNetCore_Mvc_ActionResult_TValue_^0|2B|5|0|G|D|12|F|1I|7|2X|C|2X|C|0|0|0|18|3|1F|C|J|18|1|0|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@$9|13|A|14|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|15|8|@$9|16|A|17|B|C]|$9|18|A|19|B|C]|$9|1A|A|1B|B|C]|$9|1C|A|1D|B|C]]|D|@$9|1E|A|1F|1|1G]]|E|$]]|$1|H|3|I|5|J|7|1H|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|1I|8|@$9|1J|A|1K|B|C]|$9|1L|A|1M|B|C]]|D|@$9|1N|A|1O|1|1P]]|E|$]]|$1|O|3|P|5|6|7|1Q|8|@]|D|@]|E|$]]|$1|Q|3|R|5|J|7|1R|8|@]|D|@]|E|$K|L]]|$1|S|3|-4|5|6|7|1S|8|@]|D|@]|E|$]]]|T|$U|$5|V|W|X|E|$Y|Z]]|10|$5|V|W|X|E|$Y|11]]]]

Good practice would suggest that you don't have a lot of code in your controller actions to test and the bulk of logic is in decoupled objects elsewhere that are much easier to test. Having said that, if you still want to test your controllers then you need to make your test <code>async</code> and await the calls.

One of the problems you will have is that you are using <code>IActionResult</code> as it allows you to return <code>BadRequest(...)</code> and <code>Ok(...)</code>. However, since you are using ASP.NET MVC Core 2.1, you may want to start using the new <a href="https://docs.microsoft.com/en-us/aspnet/core/web-api/action-return-types?view=aspnetcore-2.1#actionresultt-type" rel="noreferrer"><code>ActionResult&lt;T&gt;</code></a> type instead. This should help with your testing because you can now get direct access to the strongly typed return value. For example:

<pre><code>//Assuming your return type is `Configuration`
public async Task&lt;ActionResult&lt;Configuration&gt;&gt; GetConfiguration([FromRoute] int? id)
{
 try
 {
 if (!ModelState.IsValid)
 {
 return BadRequest(ModelState);
 }

 ..... // Some code here

 // Note we are now returning the object directly, there is an implicit conversion 
 // done for you
 return configuration;
 }
 catch (Exception ex)
 {
 ... // Some code here
 }
}
</code></pre>

Note we are now returning the object directly as there is an <a href="https://docs.microsoft.com/en-us/dotnet/api/microsoft.aspnetcore.mvc.actionresult-1.op_implicit?view=aspnetcore-2.1#Microsoft_AspNetCore_Mvc_ActionResult_1_op_Implicit_TValue__Microsoft_AspNetCore_Mvc_ActionResult_TValue_" rel="noreferrer">implicit conversion from <code>Foo</code> to <code>ActionResult&lt;Foo&gt;</code></a>

Now your test can look like this:

<pre><code>[TestMethod] 
public async Task ConfigurationSearchGetTest()
{
 var context = GetContextWithData();
 var controller = new ConfigurationSearchController(context);
 var items = context.Configurations.Count();

 // We now await the call
 var actionResult = await controller.GetConfiguration(12);

 // And the value we want is now a property of the return
 var configuration = actionResult.Value;

 Assert.IsTrue(true);
 context.Dispose();
}
</code></pre>

blocks|key|4190604|text|您可以在不更改返回类型的情况下获得经过测试的控制器。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4190605|IActionResult是所有其他类型的基类型。|offset|length|style|CODE|4190606|将结果转换为预期类型，并将返回值与预期值进行比较。|4190607|因为您测试的是异步方法，所以也要使测试方法异步。|4190608|[TestMethod]+
public+async+Task+ConfigurationSearchGetTest()
{
++++using+(var+context+=+GetContextWithData())
++++{
++++++++var+controller+=+new+ConfigurationSearchController(context);
++++++++var+items+=+context.Configurations.Count();

++++++++var+actionResult+=+await+controller.GetConfiguration(12);

++++++++var+okResult+=+actionResult+as+OkObjectResult;
++++++++var+actualConfiguration+=+okResult.Value+as+Configuration;

++++++++//+Now+you+can+compare+with+expected+values
++++++++actualConfuguration.Should().BeEquivalentTo(expected);
++++}
}|code-block|syntax|javascript|4190609|entityMap^0|0|0|D|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@$D|U|E|V|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|W|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|X|8|@]|9|@]|A|$]]|$1|L|3|M|5|N|7|Y|8|@]|9|@]|A|$O|P]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

You can get tested controller without changing returned type. 
<code>IActionResult</code> is base type for all others. 
Cast result into expected type and compare returned value with expected.

Since you are testing asynchronous method, make test method asynchronous as well.

<pre><code>[TestMethod] 
public async Task ConfigurationSearchGetTest()
{
 using (var context = GetContextWithData())
 {
 var controller = new ConfigurationSearchController(context);
 var items = context.Configurations.Count();

 var actionResult = await controller.GetConfiguration(12);

 var okResult = actionResult as OkObjectResult;
 var actualConfiguration = okResult.Value as Configuration;

 // Now you can compare with expected values
 actualConfuguration.Should().BeEquivalentTo(expected);
 }
}
</code></pre>

blocks|key|4191163|text|如果你需要快速的解决方案，使用JsonConvert.SerializeObject()，然后使用JsonConvert.DeserializeObject()，然后你会得到带有值的Object。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4191164|+[TestMethod]+
++++public+async+Task+ConfigurationSearchGetTest()
++++{
++++++++using+(var+context+=+GetContextWithData())
++++++++{
++++++++++++var+controller+=+new+ConfigurationSearchController(context);
++++++++++++var+items+=+context.Configurations.Count();
++++
++++++++++++var+actionResult+=+await+controller.GetConfiguration(12);
++++
++++++++++++var+okResult+=+actionResult+as+OkObjectResult;
++++++++++++var+actualConfiguration+=+okResult.Value+;
++//
++//IMPORTANT+ONLY+BELOW+two+lines++need.
++//

var+actualConfigurationJStr=JsonConvert.SerializeObject(+okResult.Value+);
var+hereObjectWithStrongType=JsonConvert.DeserializeObject<Configuration>(actualConfigurationJStr);

++++
++++++++++++//+Now+you+can+compare+with+expected+values
++++++++++++actualConfuguration.Should().BeEquivalentTo(expected);
++++++++}
++++}|code-block|syntax|javascript|4191165|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If you need fast solution,
use JsonConvert.SerializeObject() and after that JsonConvert.DeserializeObject() then you will get Object with values.
<pre><code> [TestMethod] 
 public async Task ConfigurationSearchGetTest()
 {
 using (var context = GetContextWithData())
 {
 var controller = new ConfigurationSearchController(context);
 var items = context.Configurations.Count();
 
 var actionResult = await controller.GetConfiguration(12);
 
 var okResult = actionResult as OkObjectResult;
 var actualConfiguration = okResult.Value ;
 //
 //IMPORTANT ONLY BELOW two lines need.
 //

var actualConfigurationJStr=JsonConvert.SerializeObject( okResult.Value );
var hereObjectWithStrongType=JsonConvert.DeserializeObject&lt;Configuration&gt;(actualConfigurationJStr);

 
 // Now you can compare with expected values
 actualConfuguration.Should().BeEquivalentTo(expected);
 }
 }
</code></pre>

I have created an API using ASP.NET MVC Core v2.1. One of my <code>HttpGet</code> methods is set up as follows:

<pre><code>public async Task&lt;IActionResult&gt; GetConfiguration([FromRoute] int? id)
{
 try
 {
 if (!ModelState.IsValid)
 {
 return BadRequest(ModelState);
 }

 ..... // Some code here

 return Ok(configuration);
 }
 catch (Exception ex)
 {
 ... // Some code here
 }
}
</code></pre>

When unit testing this I can check that Ok was the response, but I really need to see the values of the configuration. I don't seem to be able to get this to work with the following:

<pre><code>[TestMethod] 
public void ConfigurationSearchGetTest()
{
 var context = GetContextWithData();
 var controller = new ConfigurationSearchController(context);
 var items = context.Configurations.Count();
 var actionResult = controller.GetConfiguration(12);

 Assert.IsTrue(true);
 context.Dispose();
}
</code></pre>

At runtime, I can check that <code>actionResult</code> has certain values that I am unable to code for. Is there something I am doing wrong? Or am I just thinking about this wrong? I would like to be able to do:

<pre><code>Assert.AreEqual(12, actionResult.Values.ConfigurationId);
</code></pre>

How to get the Values from a Task<IActionResult> returned through an API for Unit Testing

单元测试

我已经使用ASP.NET MVC Corev2.1创建了一个应用程序接口。我的一个HttpGet方法设置如下：public async Task<IActionResult> GetConfiguration([FromRoute] int? id){ try { if (!ModelStat...

问如何从通过单元测试API返回的Task<IActionResult>中获取值
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