C# 模拟子验证器时FluentValidation引发的NullReference异常
从简单的事情开始:C# 模拟子验证器时FluentValidation引发的NullReference异常,c#,fluentvalidation,nsubstitute,fluent-assertions,C#,Fluentvalidation,Nsubstitute,Fluent Assertions,从简单的事情开始: public interface IChild { string Value { get; } } public class ChildValidator : AbstractValidator<IChild> { public ChildValidator() { RuleFor(c => c.Value) .NotEmpty() .NotEmpty() .WithMessage("Friendly
public interface IChild
{
string Value { get; }
}
public class ChildValidator : AbstractValidator<IChild>
{
public ChildValidator()
{
RuleFor(c => c.Value)
.NotEmpty()
.NotEmpty()
.WithMessage("Friendly Error Message");
}
}
抛出一个NullReferenceException
资料来源:“FluentValidation”
堆栈跟踪:
在中的FluentValidation.Validators.ChildValidatorAdapter.Validate(PropertyValidatorContext上下文)处
/home/jskinner/code/FluentValidation/src/FluentValidation/Validators/childvalidatoradapter.cs:第56行
在中的FluentValidation.Internal.PropertyRule.InvokePropertyValidator(ValidationContext上下文,IPropertyValidator验证器,字符串propertyName)处
/home/jskinner/code/FluentValidation/src/FluentValidation/Internal/PropertyRule.cs:第442行
在FluentValidation.Internal.PropertyRule.d_u65.MoveNext()中
在/home/jskinner/code/FluentValidation/src/FluentValidation/Internal/PropertyRule.cs中:第282行
在System.Linq.Enumerable.SelectManySingleSelectorIterator`2.MoveNext()中
位于System.Linq.Enumerable.WhereEnumerableInterator`1.MoveNext()
在FluentValidation.AbstractValidator1.中验证(ValidationContext
1上下文)
/home/jskinner/code/FluentValidation/src/FluentValidation/AbstractValidator.cs:第115行
在/home/jskinner/code/FluentValidation/src/FluentValidation/AbstractValidator.cs中的FluentValidation.AbstractValidator`1.Validate(T instance)处:第83行
在SubValidationTest.Program.Test\u ParentValidator\u和mockedchildvalidator()中
我是否还需要在模拟的验证器上模拟其他东西,以使其正确工作
我无法在DotNetFiddle上运行此代码:(从堆栈跟踪来看,它似乎无法运行
FluentValidation.AbstractValidator1.Validate(ValidationContext1 context)
不是在模拟上配置的成员之一
这应该像预期的那样
[TestMethod]
public void Test_ParentValidator_WithMockedChildValidator() {
var child = Substitute.For<IChild>();
var childValidator = Substitute.For<IValidator<IChild>>();
var parent = Substitute.For<IParent>();
var validator = new ParentValidator(childValidator);
parent.Child.Returns(null as IChild);
validator.Validate(parent).IsValid.Should().BeTrue();
parent.Child.Returns(child);
var failedResult = new ValidationResult(new List<ValidationFailure> { new ValidationFailure("property", "message") });
childValidator.Validate(Arg.Any<ValidationContext>()).Returns(failedResult);
validator.Validate(parent).IsValid.Should().BeFalse();
var validResult = new ValidationResult();
childValidator.Validate(Arg.Any<ValidationContext>()).Returns(validResult);
validator.Validate(parent).IsValid.Should().BeTrue();
}
[TestMethod]
公共无效测试\u ParentValidator\u和MockedChildValidator(){
var child=Substitute.For();
var childValidator=Substitute.For();
var parent=Substitute.For();
var validator=新的ParentValidator(childValidator);
parent.Child.Returns(null作为IChild);
validator.Validate(parent.IsValid.Should().BeTrue();
父.子.返回(子);
var failedResult=new ValidationResult(新列表{new ValidationFailure(“属性”、“消息”)});
验证(Arg.Any())。返回(failedResult);
validator.Validate(parent.IsValid.Should().BeFalse();
var validResult=新的ValidationResult();
validator.Validate(Arg.Any()).Returns(validResult);
validator.Validate(parent.IsValid.Should().BeTrue();
}
是的,显然子验证器会被另一个重载调用。
static void Test_ParentValidator_WithRealChildValidator()
{
var child = Substitute.For<IChild>();
var childValidator = new ChildValidator();
var parent = Substitute.For<IParent>();
var validator = new ParentValidator(childValidator);
parent.Child.Returns(null as IChild);
validator.Validate(parent).IsValid.Should().BeTrue();
parent.Child.Returns(child);
validator.Validate(parent).IsValid.Should().BeFalse();
child.Value.Returns("a");
validator.Validate(parent).IsValid.Should().BeTrue();
}
static void Test_ParentValidator_WithMockedChildValidator()
{
var child = Substitute.For<IChild>();
var childValidator = Substitute.For<IValidator<IChild>>();
var parent = Substitute.For<IParent>();
var validator = new ParentValidator(childValidator);
parent.Child.Returns(null as IChild);
validator.Validate(parent).IsValid.Should().BeTrue();
parent.Child.Returns(child);
childValidator.Validate(Arg.Any<IChild>())
.Returns(
new ValidationResult(
new List<ValidationFailure> { new ValidationFailure("property", "message") }));
validator.Validate(parent).IsValid.Should().BeFalse();
childValidator.Validate(Arg.Any<IChild>())
.Returns(new ValidationResult());
validator.Validate(parent).IsValid.Should().BeTrue();
}
FluentValidation.AbstractValidator1.Validate(ValidationContext1 context)
[TestMethod]
public void Test_ParentValidator_WithMockedChildValidator() {
var child = Substitute.For<IChild>();
var childValidator = Substitute.For<IValidator<IChild>>();
var parent = Substitute.For<IParent>();
var validator = new ParentValidator(childValidator);
parent.Child.Returns(null as IChild);
validator.Validate(parent).IsValid.Should().BeTrue();
parent.Child.Returns(child);
var failedResult = new ValidationResult(new List<ValidationFailure> { new ValidationFailure("property", "message") });
childValidator.Validate(Arg.Any<ValidationContext>()).Returns(failedResult);
validator.Validate(parent).IsValid.Should().BeFalse();
var validResult = new ValidationResult();
childValidator.Validate(Arg.Any<ValidationContext>()).Returns(validResult);
validator.Validate(parent).IsValid.Should().BeTrue();
}