c# - FluentAssertions 断言单个对象的多个属性

Question

有没有办法使用 FluentAssertions 做这样的事情

response.Satisfy(r =>
    r.Property1== "something" &&
    r.Property2== "anotherthing"));

我试图避免编写多个 Assert 语句。这可以通过 https://sharptestex.codeplex.com/ 实现我使用时间最长的。但是SharpTestEx不支持.Net Core。

Answer 1

.Match() 解决方案不会返回正确的错误消息。所以如果你想有一个好的错误并且只有一个断言然后使用:

result.Should().BeEquivalentTo(new MyResponseObject()
            {
                Property1 = "something",
                Property2 = "anotherthing"
            });

匿名对象(谨慎使用!)

如果您只想检查某些成员，请使用:

    result.Should().BeEquivalentTo(new
            {
                Property1 = "something",
                Property2 = "anotherthing"
            }, options => options.ExcludingMissingMembers());

Note: You will miss (new) members when testing like this. So only use if you really want to check only certain members now and in the future. Not using the exclude option will force you to edit your test when a new property is added and that can be a good thing

多个断言

Note: All given solutions gives you one line asserts. In my opinion there is nothing wrong with multiple lines of asserts as long as it is one assert functionally.

如果您想要这样做是因为您希望同时出现多个错误，请考虑将您的多行断言包装在 AssertionScope 中。

using (new AssertionScope())
{
    result.Property1.Should().Be("something");
    result.Property2.Should().Be("anotherthing");
}

如果它们都失败了，上面的语句现在会同时给出两个错误。

https://fluentassertions.com/introduction#assertion-scopes