如何对具有wcf客户端的服务进行单元测试 [英] How to do unit test a service which has wcf client called
问题描述
public class RefDataProvider : IRefDataProvider
{
private const string REF_DATA_COUNTRIES = "CountryData";
public IEnumerable<CountryLookupDto> GetCountries()
{
//if in cache then get cached version
if (CacheManager.GetInstance.OCache.Contains(REF_DATA_COUNTRIES))
return CacheManager.GetInstance.GetTypedItem<IEnumerable<CountryLookupDto>>(REF_DATA_COUNTRIES);
//not in cache so get from dadtavase
using (var service = new CrmServiceClient())
{
try
{
IEnumerable<CountryLookupDto> countriesDto = service.LookupCountries("*");
bool addedToCache = CacheManager.GetInstance.AddItemWithExpiration(REF_DATA_COUNTRIES, countriesDto,
12);
if (!addedToCache) throw new Exception("Cannot add ref data to cache");
}
catch (Exception ex)
{
LoggingManager.GetInstance.Log("Error", ex, LoggingManager.LogLevel.Error);
throw;
}
finally
{
service.Close();
}
}
return CacheManager.GetInstance.GetTypedItem<IEnumerable<CountryLookupDto>>(REF_DATA_COUNTRIES);
}
}
尝试对该方法进行单元测试. wcf客户端调用有问题.
Trying to do unit test onto the method. Having problem with wcf client call.
我正在尝试在单元测试中验证CrmServiceClient()调用.有什么方法可以在单元测试中测试wcf调用.请告知.
I am trying to verify CrmServiceClient() calls in unit test. Is there any way to test wcf calls in unit test. Please advise.
[TestFixture]
public class TestRefDataProvider
{
private IReferenceDataProvider _referenceDataProvider;
[SetUp]
public void SetUp()
{
_referenceDataProvider = new ReferenceDataProvider();
}
[Test]
public void Verify_GetCountries()
{
Assert.IsNotNull(_referenceDataProvider.GetCountries());
}
}
感谢伊利亚.在Ilya解释之后:我想到了这一点:
Thanks Ilya. After Ilya explains: I came out with this:
public class ReferenceDataProvider : IReferenceDataProvider
{
private const string REF_DATA_TITLE = "TitleData";
private const string REF_DATA_COUNTRIES = "CountryData";
private readonly ICrmService _crmService;
public ReferenceDataProvider(ICrmService crmService)
{
_crmService = crmService;
}
public IEnumerable<CountryLookupDto> GetCountries()
{
//if in cache then get cached version
if (CacheManager.GetInstance.OCache.Contains(REF_DATA_COUNTRIES))
return CacheManager.GetInstance.GetTypedItem<IEnumerable<CountryLookupDto>>(REF_DATA_COUNTRIES);
try
{
IEnumerable<CountryLookupDto> countriesDto = _crmService.LookupCountries("*");
bool addedToCache = CacheManager.GetInstance.AddItemWithExpiration(REF_DATA_COUNTRIES, countriesDto,
12);
if (!addedToCache) throw new Exception("Cannot add ref data to cache");
}
catch (Exception ex)
{
LoggingManager.GetInstance.Log("Error", ex, LoggingManager.LogLevel.Error);
throw;
}
return CacheManager.GetInstance.GetTypedItem<IEnumerable<CountryLookupDto>>(REF_DATA_COUNTRIES);
}
}
我的问题是我之前有过service.Close().现在我不能使用它.这样安全吗?
My question here is I had service.Close() before. Now I can't use it. Is that safe ?
推荐答案
如果CrmServiceClient
是您的WCF服务,那么您应该具有接口ICrmServiceClient
.
因此,您不应在代码中创建CrmServiceClient
的新实例.您唯一需要的是对ICrmServiceClient
的依赖(例如通过构造函数)
If CrmServiceClient
is your WCF service so you should have an interface ICrmServiceClient
.
Therefore you should not create new instance of CrmServiceClient
in your code. The only thing your need is a dependency on ICrmServiceClient
(e.g. via constructor)
public class RefDataProvider : IRefDataProvider
{
private readonly ICrmServiceClient crmServiceClient;
public RefDataProvider(ICrmServiceClient crmServiceClient)
{
this.crmServiceClient = crmServiceClient;
}
public IEnumerable<CountryLookupDto> GetCountries()
{
/* your code */
}
}
在这种情况下,可以很容易地将模拟
In this case it is possible to inject mock ok ICrmServiceClient
easily.
[TestFixture]
public class TestRefDataProvider
{
private Mock<ICrmServiceClient> crmServiceClientMock;
private IReferenceDataProvider _referenceDataProvider;
[SetUp]
public void SetUp()
{
crmServiceClientMock = new Mock<ICrmServiceClient>();
crmServiceClientMock
.Setuo(/* your code */)
.Returns(/* your code */);
_referenceDataProvider = new ReferenceDataProvider(
crmServiceClientMock.Object
);
}
}
MOQ 框架用于模拟依赖关系.
MOQ framework is used in order to mock dependencies.
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