Question

我正在尝试为以下通用接口设置最小起订量，但出现异常

 public interface IReadAccess<TEntity>
 {
     Task<IEnumerable<TEntity>> GetAll();
 }

var m = new Mock<IReadAccess<Foo>>(MockBehavior.Strict);

m.Setup(p => p.GetAll()).ReturnsAsync(new List<Foo>());

m.VerifyAll();

获取波纹管异常

Moq.MockException
  HResult=0x80131500
  Message=The following setups on mock
    'Mock<EPIC.CrossCutting.Interfaces.DAL.Framework.IReadAccess<EPIC.CrossCutting.DTOs.Data.Announcement.AnnouncementCrosscutDTO>:00000002>' 
  were not matched:
IReadAccess<AnnouncementCrosscutDTO> p => p.GetAll()

  Source=Moq
  StackTrace:
   at Moq.Mock.VerifyAll()
   at EPIC.Tests.Business.Rules.Announcements.AnnouncementPlanning.CrosscutsProgrammaticActivitiesValidationRuleServiceTests.<ExecuteSuccessTest>d__5.MoveNext() 
in D:\dev\main\Tests\EPIC.Tests.Business.Rules\Announcements\AnnouncementPlanning\CrosscutsProgrammaticActivitiesValidationRuleServiceTests.cs:line 108

Answer 1

您的测试正确失败了，因为您尝试验证GetAll（）是否被调用，即使您实际上并未调用它。

如果您在测试中或正在测试的代码中调用该方法，它将通过。

[Fact]
public async Task Test1()
{
    var m = new Mock<IReadAccess<Foo>>(MockBehavior.Strict);
    m.Setup(p => p.GetAll()).ReturnsAsync(new List<Foo>());

    var result = await m.Object.GetAll();

    m.VerifyAll();
}

提示出在您的错误消息中： Message =以下关于模拟....的设置不匹配： IReadAccess p => p.GetAll（）

Answer 2

感谢Connell，这可以正常工作，但是我有类似的方法

public interface IReadAccess<TEntity>  
{  
    Task<IEnumerable<TEntity>> GetAll();   
    Task<IEnumerable<TEntity>> Find(FormattableString whereClause, object whereClauseObject);

}

并尝试设置

var m = new Mock<IReadAccess<Foo>>(MockBehavior.Strict);
m.Setup(x => x.Find($"ID = @ID", new { ID = 5 })).ReturnsAsync(new List<Foo>());
var result = await m.Object.Find($"ID= @ID", new { ID = 5 });
m.VerifyAll();

在对现有代码进行了一些更改之后，现在安装程序可以正常工作，但是在从测试，更新的代码中调用时，在实际服务上会出错

var test = new Test {ID = 5};
object whereClause = new { ID = test.ID };
            FormattableString formattableString = $"ID = @ID";

            m.Setup(x => x.Find(formattableString, whereClause)).ReturnsAsync(new List<Foo>());

 var ruleServiceOutput = await this.testValidationRuleService.ExecuteAsync(test);

实际代码

public async Task<IRuleServiceOutput<bool>> ExecuteAsync(Test test)
        {
            var errors = new List<string>();

            object whereClause = new { ID = test.ID };
            FormattableString formattableString = $"ID = @ID";

            var output = (await m.Find(formattableString, whereClause)).ToArray();

            return new RuleServiceOutput<bool>(output.Errors.IsEmpty(), output.Errors);
        }

'IReadAccess`1.Find（ID = @ID，{ID = 5}）调用因模拟行为严格而失败。模拟中的所有调用都必须具有相应的设置。'

设置MockBehavior之后。默认一切正常：）

在Moq中使用接口模拟通用方法

2 个答案: