如何对集合中的属性使用FluentAssertions中的排除? [英] How to use Exclude in FluentAssertions for property in collection?

问题描述

我有两节课:

public class ClassA
{
  public int? ID {get; set;}
  public IEnumerable<ClassB> Children {get; set;}
}

public class ClassB
{
  public int? ID {get; set;}
  public string Name {get; set;}
}

我想使用流畅的断言与ClassA实例进行比较.但是我想忽略这些ID(因为ID将在保存后分配).

I want to use fluent assertions to compare to ClassA instances. However I want to ignore the IDs (because the IDs will have been assigned after the save).

我知道我可以做到:

expectedA.ShouldBeEquivalentTo(actualA, options => options.Excluding(x => x.PropertyPath == "Children[0].ID"));

显然，我可以对集合中的每个ClassB重复该操作.但是，我正在寻找一种排除所有ID的方法(而不是对每个元素进行排除).

Which I can obviously repeat for each ClassB in the collection. However I'm looking for a way to exclude the all the IDs (rather than doing an exclude for each element).

我已阅读

I've read this question however if I remove the [0] indexers the assertions fail.

这可能吗?

推荐答案

那又如何?

expected.ShouldBeEquivalentTo(actualA, options => options.Excluding(su => 
   (su.RuntimeType == typeof(ClassB)) && (su.PropertyPath.EndsWith("Id")));`

或者您可以在属性路径上进行RegEx匹配，例如

Or you could do a RegEx match on the property path, such as

expected.ShouldBeEquivalentTo(actualA, options => options.Excluding(su => (Regex.IsMatch
   ("Children\[.+\]\.ID"));

我实际上很喜欢最后一个，但是正则表达式的东西使阅读起来有些困难.也许我应该使用一种方法来扩展ISubjectInfo，以将路径与通配符模式进行匹配，以便您可以执行以下操作:

I actually like that last one, but the regex stuff makes it a bit difficult to read. Maybe I should extend ISubjectInfo with a method to match the path against a wildcard pattern, so that you can do this:

expected.ShouldBeEquivalentTo(actualA, options => options
  .Excluding(su => su.PathMatches("Children[*].ID")));

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