C# 如何在ASP.NET MVC 2中对DataAnnotationsModelBinder进行单元测试
我正在使用ASP.NET MVC 2,其中DataAnnotation属性散布在属性上,如下所示:C# 如何在ASP.NET MVC 2中对DataAnnotationsModelBinder进行单元测试,c#,asp.net-mvc,unit-testing,validation,C#,Asp.net Mvc,Unit Testing,Validation,我正在使用ASP.NET MVC 2,其中DataAnnotation属性散布在属性上,如下所示: public class LogOnViewModel { [Required] public string UserName { get; set; } [Required] public string Password { get; set; } [Required] public string Domain { get; set; } }
public class LogOnViewModel
{
[Required]
public string UserName { get; set; }
[Required]
public string Password { get; set; }
[Required]
public string Domain { get; set; }
}
我有一个单元测试,在验证失败时检查当前视图是否呈现。但是,我正在手动将错误添加到ModelState
以使其正常工作:
[Test]
public void TestThatLogOnActionRedirectsToLogOnViewIfValidationFails()
{
//create a invalid view model
var model = new LogOnViewModel {UserName = "jsmith"};
//Can I avoid doing this manually?
//populate Model State Errors Collection
_accountController.ModelState.AddModelError("FirstName", "First Name Required");
_accountController.ModelState.AddModelError("LastName", "Last Name Required");
var result = _accountController.LogOn(model);
result.AssertViewRendered()
.ForView(Constants.Views.LogOn)
.WithViewData<LogOnViewModel>();
}
[测试]
public void TestThatLogOnActionRedirectsToLogOnViewIfValidationFails()
{
//创建无效的视图模型
var model=newlogonviewmodel{UserName=“jsmith”};
//我可以避免手动执行此操作吗?
//填充模型状态错误集合
_accountController.ModelState.AddModelError(“名字”,“需要名字”);
_accountController.ModelState.AddModelError(“姓氏”,“需要姓氏”);
var result=\u accountController.LogOn(模型);
result.AssertViewRendered()的
.ForView(常量.Views.LogOn)
.WithViewData();
}
在单元测试中是否有直接或间接与ModelBinder交互的方法?例如:
[Test]
public void TestThatLogOnActionRedirectsToLogOnViewIfValidationFails()
{
//create a invalid view model
var model = new LogOnViewModel {UserName = "jsmith"};
//validate model
//not sure about the api call...
var validationResults = new DataAnnotationsModelBinder().Validate(model);
_accountController.ModelState.Merge(validationResults);
var result = _accountController.LogOn(model);
result.AssertViewRendered()
.ForView(Constants.Views.LogOn)
.WithViewData<LogOnViewModel>();
}
[测试]
public void TestThatLogOnActionRedirectsToLogOnViewIfValidationFails()
{
//创建无效的视图模型
var model=newlogonviewmodel{UserName=“jsmith”};
//验证模型
//不确定api调用。。。
var validationResults=new DataAnnotationsModelBinder().Validate(model);
_accountController.ModelState.Merge(validationResults);
var result=\u accountController.LogOn(模型);
result.AssertViewRendered()的
.ForView(常量.Views.LogOn)
.WithViewData();
}
Brad Wilson有一篇关于DataAnnotationsModelBinder的不错的博客,包括如何对其进行单元测试:我通常通过直接调用System.ComponentModel.DataAnnotations.Validator的facade方法对我的模型验证设置进行单元测试
我就这个问题写了一篇文章
我最终得到了这样的代码(本文展示了一个用于模型验证的更干净、可重用的单元测试基类)
[测试]
[TestCaseSource(“ValidationRule_Source”)]
公共无效验证规则(ValidateRuleSpec规范){
//安排
var model=CreateValidPersonModel();
//应用坏值
model.GetType().GetProperty(spec.MemberName).SetValue(model,spec.BadValue);
//表演
var validationResults=新列表();
var success=Validator.TryValidateObject(模型,新的ValidationContext(模型),validationResults,true);
//断言
期望(成功,错误);
Expect(validationResults.Count,等式(1));
Expect(validationResults.SingleOrDefault(r=>r.MemberNames.Contains(spec.MemberName)),Not.Null);
}
public IEnumerable ValidationRule_Source(){
收益率返回新ValidateRuleSpec(){
BadValue=null,
MemberName=“FirstName”
};
收益率返回新ValidateRuleSpec(){
BadValue=string.Empty,
MemberName=“FirstName”
};
收益率返回新ValidateRuleSpec(){
BadValue=null,
MemberName=“LastName”
};
/* ... */
}
我不喜欢只相信代码工作,所以我系统地为我的模型验证代码编写单元测试。但是,我相信框架/模型绑定器可以执行验证。
通过这个单元测试,我可以编写信任验证的控制器。嗨,Dave,我在盯着主题看之后发现了这篇文章,我对他关于“只信任”DataAnnotationsModelBinder的回答不满意,所以我决定在这里发布一个问题。无论如何谢谢你
[Test]
[TestCaseSource("ValidationRule_Source")]
public void ValidationRule(ValidateRuleSpec spec) {
// Arrange
var model = CreateValidPersonModel();
// Apply bad valud
model.GetType().GetProperty(spec.MemberName).SetValue(model, spec.BadValue);
// Act
var validationResults = new List<ValidationResult>();
var success = Validator.TryValidateObject(model, new ValidationContext(model), validationResults, true);
// Assert
Expect(success, False);
Expect(validationResults.Count, EqualTo(1));
Expect(validationResults.SingleOrDefault(r => r.MemberNames.Contains(spec.MemberName)), Not.Null);
}
public IEnumerable<ValidateRuleSpec> ValidationRule_Source() {
yield return new ValidateRuleSpec() {
BadValue = null,
MemberName = "FirstName"
};
yield return new ValidateRuleSpec() {
BadValue = string.Empty,
MemberName = "FirstName"
};
yield return new ValidateRuleSpec() {
BadValue = null,
MemberName = "LastName"
};
/* ... */
}