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linux-packaging-mono/external/aspnetwebstack/test/System.Web.Mvc.Test/Test/ModelValidatorTest.cs
Jo Shields a575963da9 Imported Upstream version 3.6.0
Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14
2014-08-13 10:39:27 +01:00

236 lines
8.5 KiB
C#

// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.Mvc.Test
{
public class ModelValidatorTest
{
[Fact]
public void ConstructorGuards()
{
// Arrange
ModelMetadata metadata = ModelMetadataProviders.Current.GetMetadataForType(null, typeof(object));
ControllerContext context = new ControllerContext();
// Act & Assert
Assert.ThrowsArgumentNull(
() => new TestableModelValidator(null, context),
"metadata");
Assert.ThrowsArgumentNull(
() => new TestableModelValidator(metadata, null),
"controllerContext");
}
[Fact]
public void ValuesSet()
{
// Arrange
ModelMetadata metadata = ModelMetadataProviders.Current.GetMetadataForProperty(() => 15, typeof(string), "Length");
ControllerContext context = new ControllerContext();
// Act
TestableModelValidator validator = new TestableModelValidator(metadata, context);
// Assert
Assert.Same(context, validator.ControllerContext);
Assert.Same(metadata, validator.Metadata);
}
[Fact]
public void NoClientRulesByDefault()
{
// Arrange
ModelMetadata metadata = ModelMetadataProviders.Current.GetMetadataForProperty(() => 15, typeof(string), "Length");
ControllerContext context = new ControllerContext();
// Act
TestableModelValidator validator = new TestableModelValidator(metadata, context);
// Assert
Assert.Empty(validator.GetClientValidationRules());
}
[Fact]
public void IsRequiredFalseByDefault()
{
// Arrange
ModelMetadata metadata = ModelMetadataProviders.Current.GetMetadataForProperty(() => 15, typeof(string), "Length");
ControllerContext context = new ControllerContext();
// Act
TestableModelValidator validator = new TestableModelValidator(metadata, context);
// Assert
Assert.False(validator.IsRequired);
}
[Fact]
public void GetModelValidator_DoesNotReadPropertyValues()
{
ModelValidatorProvider[] originalProviders = ModelValidatorProviders.Providers.ToArray();
try
{
// Arrange
ModelValidatorProviders.Providers.Clear();
ModelValidatorProviders.Providers.Add(new ObservableModelValidatorProvider());
ObservableModel model = new ObservableModel();
ModelMetadata metadata = new EmptyModelMetadataProvider().GetMetadataForType(() => model, typeof(ObservableModel));
ControllerContext controllerContext = new ControllerContext();
// Act
ModelValidator validator = ModelValidator.GetModelValidator(metadata, controllerContext);
ModelValidationResult[] results = validator.Validate(model).ToArray();
// Assert
Assert.False(model.PropertyWasRead());
}
finally
{
ModelValidatorProviders.Providers.Clear();
foreach (ModelValidatorProvider provider in originalProviders)
{
ModelValidatorProviders.Providers.Add(provider);
}
}
}
private class ObservableModelValidatorProvider : ModelValidatorProvider
{
public override IEnumerable<ModelValidator> GetValidators(ModelMetadata metadata, ControllerContext context)
{
return new ModelValidator[] { new ObservableModelValidator(metadata, context) };
}
private class ObservableModelValidator : ModelValidator
{
public ObservableModelValidator(ModelMetadata metadata, ControllerContext controllerContext)
: base(metadata, controllerContext)
{
}
public override IEnumerable<ModelValidationResult> Validate(object container)
{
return Enumerable.Empty<ModelValidationResult>();
}
}
}
private class ObservableModel
{
private bool _propertyWasRead;
public int TheProperty
{
get
{
_propertyWasRead = true;
return 42;
}
}
public bool PropertyWasRead()
{
return _propertyWasRead;
}
}
[Fact]
public void GetModelValidatorWithTypeLevelValidator()
{
// Arrange
ControllerContext context = new ControllerContext();
DataErrorInfo1 model = new DataErrorInfo1 { Error = "Some Type Error" };
ModelMetadata metadata = ModelMetadataProviders.Current.GetMetadataForType(() => model, model.GetType());
ModelValidator validator = ModelValidator.GetModelValidator(metadata, context);
// Act
ModelValidationResult result = validator.Validate(null).Single();
// Assert
Assert.Equal(String.Empty, result.MemberName);
Assert.Equal("Some Type Error", result.Message);
}
[Fact]
public void GetModelValidatorWithPropertyLevelValidator()
{
// Arrange
ControllerContext context = new ControllerContext();
DataErrorInfo1 model = new DataErrorInfo1();
model["SomeStringProperty"] = "Some Property Error";
ModelMetadata metadata = ModelMetadataProviders.Current.GetMetadataForType(() => model, model.GetType());
ModelValidator validator = ModelValidator.GetModelValidator(metadata, context);
// Act
ModelValidationResult result = validator.Validate(null).Single();
// Assert
Assert.Equal("SomeStringProperty", result.MemberName);
Assert.Equal("Some Property Error", result.Message);
}
[Fact]
public void GetModelValidatorWithFailedPropertyValidatorsPreventsTypeValidatorFromRunning()
{
// Arrange
ControllerContext context = new ControllerContext();
DataErrorInfo1 model = new DataErrorInfo1 { Error = "Some Type Error" };
model["SomeStringProperty"] = "Some Property Error";
model["SomeOtherStringProperty"] = "Some Other Property Error";
ModelMetadata metadata = ModelMetadataProviders.Current.GetMetadataForType(() => model, model.GetType());
ModelValidator validator = ModelValidator.GetModelValidator(metadata, context);
// Act
List<ModelValidationResult> result = validator.Validate(null).ToList();
// Assert
Assert.Equal(2, result.Count);
Assert.Equal("SomeStringProperty", result[0].MemberName);
Assert.Equal("Some Property Error", result[0].Message);
Assert.Equal("SomeOtherStringProperty", result[1].MemberName);
Assert.Equal("Some Other Property Error", result[1].Message);
}
private class TestableModelValidator : ModelValidator
{
public TestableModelValidator(ModelMetadata metadata, ControllerContext context)
: base(metadata, context)
{
}
public override IEnumerable<ModelValidationResult> Validate(object container)
{
throw new NotImplementedException();
}
}
private class DataErrorInfo1 : IDataErrorInfo
{
private readonly Dictionary<string, string> _errors = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
public string SomeStringProperty { get; set; }
public string SomeOtherStringProperty { get; set; }
public string Error { get; set; }
public string this[string columnName]
{
get
{
string outVal;
_errors.TryGetValue(columnName, out outVal);
return outVal;
}
set { _errors[columnName] = value; }
}
}
}
}