场景：我有一个具有可为空属性的对象，当我运行被测方法时，该对象将被更新。在预期的对象中，我没有指定它，因为我想单独验证该值。这是一个简单的测试演示
using System;
using FluentAssertions;
using NUnit.Framework;
namespace FluentAssertionsNullableFailure
{
public class SimpleWithNullable
{
public Int64? nullableIntegerProperty
{ get; set; }
public string strProperty
{ get; set; }
}
[TestFixture]
public class Demo
{
public SimpleWithNullable actual = new SimpleWithNullable { nullableIntegerProperty = 1, strProperty = "I haz a string!" };
public SimpleWithNullable expected = new SimpleWithNullable { strProperty = "I haz a string!" };
[Test]
public void NullableTest ()
{
actual.ShouldBeEquivalentTo (
expected,
opt => opt.Using<Int64?> ( c => c.Subject.Should ().BeInRange ( 0, 10 ) ).WhenTypeIs<Int64?> ()
);
}
}
}
但是，这会失败并显示以下消息：
Test Name: NullableTest
Test FullName: FluentAssertionsNullableFailure.Demo.NullableTest
Test Source: c:\Users\ebelew\Documents\Visual Studio 2012\Projects\FluentAssertionsNullableFailure\FluentAssertionsNullableFailure\Demo.cs : line 25
Test Outcome: Failed
Test Duration: 0:00:00.271
Result Message:
Expected property nullableIntegerProperty to be <null>, but found 1.
With configuration:
- Select all declared properties
- Match property by name (or throw)
- Invoke Action<Nullable`1> when info.RuntimeType.IsSameOrInherits(System.Nullable`1[System.Int64])
- Invoke Action<DateTime> when info.RuntimeType.IsSameOrInherits(System.DateTime)
- Invoke Action<String> when info.RuntimeType.IsSameOrInherits(System.String)
Result StackTrace:
at FluentAssertions.Execution.LateBoundTestFramework.Throw(String message) in d:\Workspace\Github\FluentAssertions\FluentAssertions.Net35\Execution\LateBoundTestFramework.cs:line 25
at FluentAssertions.Execution.CollectingAssertionStrategy.ThrowIfAny(IDictionary`2 context) in d:\Workspace\Github\FluentAssertions\FluentAssertions.Net35\Execution\CollectingAssertionStrategy.cs:line 57
at FluentAssertions.Execution.AssertionScope.Dispose() in d:\Workspace\Github\FluentAssertions\FluentAssertions.Net35\Execution\AssertionScope.cs:line 267
at FluentAssertions.Equivalency.EquivalencyValidator.AssertEquality(EquivalencyValidationContext context) in d:\Workspace\Github\FluentAssertions\FluentAssertions.Net35\Equivalency\EquivalencyValidator.cs:line 55
at FluentAssertions.AssertionExtensions.ShouldBeEquivalentTo[T](T subject, Object expectation, Func`2 config, String reason, Object[] reasonArgs) in d:\Workspace\Github\FluentAssertions\FluentAssertions.Net35\AssertionExtensions.cs:line 497
at FluentAssertionsNullableFailure.Demo.NullableTest() in c:\Users\ebelew\Documents\Visual Studio 2012\Projects\FluentAssertionsNullableFailure\FluentAssertionsNullableFailure\Demo.cs:line 25
如何使用 Options 上下文执行此操作，而不是将其拆分为两个或多个断言。（一个断言用于公共属性，每个用于具有范围或所需值而不是严格等价的项目）
expected注意：这在对象中没有显式值的引用类型上也会失败。
注意+：我试过 ExcludingMissingProperties()，它不会改变错误。