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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System;
using System.Web.Mvc;
using System.Web.TestUtil;
using Microsoft.Web.UnitTestUtil;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace Microsoft.Web.Mvc.ModelBinding.Test
{
public class ExtensibleModelBindingContextTest
{
[Fact]
public void CopyConstructor()
{
// Arrange
ExtensibleModelBindingContext originalBindingContext = new ExtensibleModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(object)),
ModelName = "theName",
ModelState = new ModelStateDictionary(),
ValueProvider = new SimpleValueProvider()
};
// Act
ExtensibleModelBindingContext newBindingContext = new ExtensibleModelBindingContext(originalBindingContext);
// Assert
Assert.Null(newBindingContext.ModelMetadata);
Assert.Equal("", newBindingContext.ModelName);
Assert.Equal(originalBindingContext.ModelState, newBindingContext.ModelState);
Assert.Equal(originalBindingContext.ValueProvider, newBindingContext.ValueProvider);
}
[Fact]
public void ModelBinderProvidersProperty()
{
// Arrange
ExtensibleModelBindingContext bindingContext = new ExtensibleModelBindingContext();
// Act & assert
MemberHelper.TestPropertyWithDefaultInstance(bindingContext, "ModelBinderProviders", new ModelBinderProviderCollection(), ModelBinderProviders.Providers);
}
[Fact]
public void ModelProperty()
{
// Arrange
ExtensibleModelBindingContext bindingContext = new ExtensibleModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(int))
};
// Act & assert
MemberHelper.TestPropertyValue(bindingContext, "Model", 42);
}
[Fact]
public void ModelProperty_ThrowsIfModelMetadataDoesNotExist()
{
// Arrange
ExtensibleModelBindingContext bindingContext = new ExtensibleModelBindingContext();
// Act & assert
Assert.Throws<InvalidOperationException>(
delegate { bindingContext.Model = null; },
"The ModelMetadata property must be set before accessing this property.");
}
[Fact]
public void ModelNameProperty()
{
// Arrange
ExtensibleModelBindingContext bindingContext = new ExtensibleModelBindingContext();
// Act & assert
Assert.Reflection.StringProperty(bindingContext, (context) => context.ModelName, String.Empty);
}
[Fact]
public void ModelStateProperty()
{
// Arrange
ExtensibleModelBindingContext bindingContext = new ExtensibleModelBindingContext();
ModelStateDictionary modelState = new ModelStateDictionary();
// Act & assert
MemberHelper.TestPropertyWithDefaultInstance(bindingContext, "ModelState", modelState);
}
[Fact]
public void ModelAndModelTypeAreFedFromModelMetadata()
{
// Act
ExtensibleModelBindingContext bindingContext = new ExtensibleModelBindingContext
{
ModelMetadata = ModelMetadataProviders.Current.GetMetadataForType(() => 42, typeof(int))
};
// Assert
Assert.Equal(42, bindingContext.Model);
Assert.Equal(typeof(int), bindingContext.ModelType);
}
[Fact]
public void ValidationNodeProperty()
{
// Act
ExtensibleModelBindingContext bindingContext = new ExtensibleModelBindingContext
{
ModelMetadata = ModelMetadataProviders.Current.GetMetadataForType(() => 42, typeof(int))
};
// Act & assert
MemberHelper.TestPropertyWithDefaultInstance(bindingContext, "ValidationNode", new ModelValidationNode(bindingContext.ModelMetadata, "someName"));
}
[Fact]
public void ValidationNodeProperty_DefaultValues()
{
// Act
ExtensibleModelBindingContext bindingContext = new ExtensibleModelBindingContext
{
ModelMetadata = ModelMetadataProviders.Current.GetMetadataForType(() => 42, typeof(int)),
ModelName = "theInt"
};
// Act
ModelValidationNode validationNode = bindingContext.ValidationNode;
// Assert
Assert.NotNull(validationNode);
Assert.Equal(bindingContext.ModelMetadata, validationNode.ModelMetadata);
Assert.Equal(bindingContext.ModelName, validationNode.ModelStateKey);
}
}
}
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