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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Collections.Generic;
using System.Linq;
using Moq;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.Mvc.Test
{
public class ModelValidatorProviderCollectionTest
{
[Fact]
public void ListWrappingConstructor()
{
// Arrange
List<ModelValidatorProvider> list = new List<ModelValidatorProvider>()
{
new Mock<ModelValidatorProvider>().Object, new Mock<ModelValidatorProvider>().Object
};
// Act
ModelValidatorProviderCollection collection = new ModelValidatorProviderCollection(list);
// Assert
Assert.Equal(list, collection.ToList());
}
[Fact]
public void ListWrappingConstructorThrowsIfListIsNull()
{
// Act & Assert
Assert.ThrowsArgumentNull(
delegate { new ModelValidatorProviderCollection((IList<ModelValidatorProvider>)null); },
"list");
}
[Fact]
public void DefaultConstructor()
{
// Act
ModelValidatorProviderCollection collection = new ModelValidatorProviderCollection();
// Assert
Assert.Empty(collection);
}
[Fact]
public void AddNullModelValidatorProviderThrows()
{
// Arrange
ModelValidatorProviderCollection collection = new ModelValidatorProviderCollection();
// Act & Assert
Assert.ThrowsArgumentNull(
delegate { collection.Add(null); },
"item");
}
[Fact]
public void SetItem()
{
// Arrange
ModelValidatorProviderCollection collection = new ModelValidatorProviderCollection();
collection.Add(new Mock<ModelValidatorProvider>().Object);
ModelValidatorProvider newProvider = new Mock<ModelValidatorProvider>().Object;
// Act
collection[0] = newProvider;
// Assert
ModelValidatorProvider provider = Assert.Single(collection);
Assert.Equal(newProvider, provider);
}
[Fact]
public void SetNullModelValidatorProviderThrows()
{
// Arrange
ModelValidatorProviderCollection collection = new ModelValidatorProviderCollection();
collection.Add(new Mock<ModelValidatorProvider>().Object);
// Act & Assert
Assert.ThrowsArgumentNull(
delegate { collection[0] = null; },
"item");
}
[Fact]
public void GetValidators()
{
// Arrange
ModelMetadata metadata = GetMetadata();
ControllerContext controllerContext = new ControllerContext();
ModelValidator[] allValidators = new ModelValidator[]
{
new SimpleModelValidator(),
new SimpleModelValidator(),
new SimpleModelValidator(),
new SimpleModelValidator(),
new SimpleModelValidator()
};
Mock<ModelValidatorProvider> provider1 = new Mock<ModelValidatorProvider>();
provider1.Setup(p => p.GetValidators(metadata, controllerContext)).Returns(new ModelValidator[]
{
allValidators[0], allValidators[1]
});
Mock<ModelValidatorProvider> provider2 = new Mock<ModelValidatorProvider>();
provider2.Setup(p => p.GetValidators(metadata, controllerContext)).Returns(new ModelValidator[]
{
allValidators[2], allValidators[3], allValidators[4]
});
ModelValidatorProviderCollection collection = new ModelValidatorProviderCollection();
collection.Add(provider1.Object);
collection.Add(provider2.Object);
// Act
IEnumerable<ModelValidator> returnedValidators = collection.GetValidators(metadata, controllerContext);
// Assert
Assert.Equal(allValidators, returnedValidators.ToArray());
}
[Fact]
public void GetValidatorsDelegatesToResolver()
{
// Arrange
ModelValidator[] allValidators = new ModelValidator[]
{
new SimpleModelValidator(),
new SimpleModelValidator(),
new SimpleModelValidator(),
new SimpleModelValidator()
};
ModelMetadata metadata = GetMetadata();
ControllerContext controllerContext = new ControllerContext();
Mock<ModelValidatorProvider> resolverProvider1 = new Mock<ModelValidatorProvider>();
resolverProvider1.Setup(p => p.GetValidators(metadata, controllerContext)).Returns(new ModelValidator[]
{
allValidators[0], allValidators[1]
});
Mock<ModelValidatorProvider> resolverprovider2 = new Mock<ModelValidatorProvider>();
resolverprovider2.Setup(p => p.GetValidators(metadata, controllerContext)).Returns(new ModelValidator[]
{
allValidators[2], allValidators[3]
});
Resolver<IEnumerable<ModelValidatorProvider>> resolver = new Resolver<IEnumerable<ModelValidatorProvider>>();
resolver.Current = new ModelValidatorProvider[] { resolverProvider1.Object, resolverprovider2.Object };
ModelValidatorProviderCollection collection = new ModelValidatorProviderCollection(resolver);
// Act
IEnumerable<ModelValidator> returnedValidators = collection.GetValidators(metadata, controllerContext);
// Assert
Assert.Equal(allValidators, returnedValidators.ToArray());
}
private static ModelMetadata GetMetadata()
{
ModelMetadataProvider provider = new EmptyModelMetadataProvider();
return provider.GetMetadataForType(null, typeof(object));
}
private sealed class SimpleModelValidator : ModelValidator
{
public SimpleModelValidator()
: base(GetMetadata(), new ControllerContext())
{
}
public override IEnumerable<ModelValidationResult> Validate(object container)
{
throw new NotImplementedException();
}
}
}
}
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