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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 System.Web.Mvc;
using Microsoft.Web.UnitTestUtil;
using Moq;
using Xunit;
namespace Microsoft.Web.Mvc.ModelBinding.Test
{
public class KeyValuePairModelBinderTest
{
[Fact]
public void BindModel_MissingKey_ReturnsFalse()
{
// Arrange
ControllerContext controllerContext = new ControllerContext();
ExtensibleModelBindingContext bindingContext = new ExtensibleModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(KeyValuePair<int, string>)),
ModelName = "someName",
ModelBinderProviders = new ModelBinderProviderCollection(),
ValueProvider = new SimpleValueProvider()
};
KeyValuePairModelBinder<int, string> binder = new KeyValuePairModelBinder<int, string>();
// Act
bool retVal = binder.BindModel(controllerContext, bindingContext);
// Assert
Assert.False(retVal);
Assert.Null(bindingContext.Model);
Assert.Empty(bindingContext.ValidationNode.ChildNodes);
}
[Fact]
public void BindModel_MissingValue_ReturnsTrue()
{
// Arrange
ControllerContext controllerContext = new ControllerContext();
ExtensibleModelBindingContext bindingContext = new ExtensibleModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(KeyValuePair<int, string>)),
ModelName = "someName",
ModelBinderProviders = new ModelBinderProviderCollection(),
ValueProvider = new SimpleValueProvider()
};
Mock<IExtensibleModelBinder> mockIntBinder = new Mock<IExtensibleModelBinder>();
mockIntBinder
.Setup(o => o.BindModel(controllerContext, It.IsAny<ExtensibleModelBindingContext>()))
.Returns(
delegate(ControllerContext cc, ExtensibleModelBindingContext mbc)
{
mbc.Model = 42;
return true;
});
bindingContext.ModelBinderProviders.RegisterBinderForType(typeof(int), mockIntBinder.Object, true /* suppressPrefixCheck */);
KeyValuePairModelBinder<int, string> binder = new KeyValuePairModelBinder<int, string>();
// Act
bool retVal = binder.BindModel(controllerContext, bindingContext);
// Assert
Assert.True(retVal);
Assert.Null(bindingContext.Model);
Assert.Equal(new[] { "someName.key" }, bindingContext.ValidationNode.ChildNodes.Select(n => n.ModelStateKey).ToArray());
}
[Fact]
public void BindModel_SubBindingSucceeds()
{
// Arrange
ControllerContext controllerContext = new ControllerContext();
ExtensibleModelBindingContext bindingContext = new ExtensibleModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(KeyValuePair<int, string>)),
ModelName = "someName",
ModelBinderProviders = new ModelBinderProviderCollection(),
ValueProvider = new SimpleValueProvider()
};
Mock<IExtensibleModelBinder> mockIntBinder = new Mock<IExtensibleModelBinder>();
mockIntBinder
.Setup(o => o.BindModel(controllerContext, It.IsAny<ExtensibleModelBindingContext>()))
.Returns(
delegate(ControllerContext cc, ExtensibleModelBindingContext mbc)
{
mbc.Model = 42;
return true;
});
bindingContext.ModelBinderProviders.RegisterBinderForType(typeof(int), mockIntBinder.Object, true /* suppressPrefixCheck */);
Mock<IExtensibleModelBinder> mockStringBinder = new Mock<IExtensibleModelBinder>();
mockStringBinder
.Setup(o => o.BindModel(controllerContext, It.IsAny<ExtensibleModelBindingContext>()))
.Returns(
delegate(ControllerContext cc, ExtensibleModelBindingContext mbc)
{
mbc.Model = "forty-two";
return true;
});
bindingContext.ModelBinderProviders.RegisterBinderForType(typeof(string), mockStringBinder.Object, true /* suppressPrefixCheck */);
KeyValuePairModelBinder<int, string> binder = new KeyValuePairModelBinder<int, string>();
// Act
bool retVal = binder.BindModel(controllerContext, bindingContext);
// Assert
Assert.True(retVal);
Assert.Equal(new KeyValuePair<int, string>(42, "forty-two"), bindingContext.Model);
Assert.Equal(new[] { "someName.key", "someName.value" }, bindingContext.ValidationNode.ChildNodes.Select(n => n.ModelStateKey).ToArray());
}
}
}
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