代码之家 › 专栏 › 技术社区 › Ranjith Varatharajan

C中表达式树的单元测试#

linqkit xunit mstest expression c#

Ranjith Varatharajan · 技术社区 · 7 年前

如何在C中编写表达式树的单元测试。

我有这门课需要测试。此方法返回表达式树,并获取一个表达式树作为参数。

代码:

public ExpressionStarter<SpecFinderDataModel> DoSearch(bool status, string searchValue, ExpressionStarter<SpecFinderDataModel> predicate)
{
    var localPredicate = predicate;
    if (status == false)
    {
        var searchTerms = searchValue.Split(' ').ToList().ConvertAll(x => x.ToLower());
        localPredicate = localPredicate.Or(s => searchTerms.Any(srch => s.ProductID.ToLower().Contains(srch)));
        localPredicate = localPredicate.Or(s => searchTerms.Any(srch => s.ISBN13.ToLower().Contains(srch)));
        localPredicate = localPredicate.Or(s => searchTerms.Any(srch => s.Title.ToLower().Contains(srch)));
    }
    return localPredicate;
}

任何建议都是有益的。谢谢。

更新第1号 我用Linqkit来表达

1 回复 | 直到 7 年前

Mrinal Kamboj 7 年前

Expression<Func<SpecFinderDataModel,bool>> DoSearch SpecFinderDataModel

public class SpecFinderDataModel
{
    public string ProductID {get; set;}

    public string ISBN13 {get; set;}

    public string Title {get; set;}
}

   // Initial Expression value constant false is the result
   Expression<Func<SpecFinderDataModel, bool>> expr = c => false;

    // SpecFinderDataModel Object
    var sfd = new SpecFinderDataModel
    {
     ISBN13 = "",
     ProductID = "Test A B C",
     Title = ""
    }

    // Call DoSearch and supply the sfd for testing
    var result = DoSearch(false,"Test",expr).Compile()(sfd);

    // Assert the result in the unit test to understand 
    Assert.True(result,true);

sfd