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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.Http.Controllers;
using System.Web.Http.Metadata.Providers;
using System.Web.Http.Util;
using Moq;
using Xunit;
namespace System.Web.Http.ModelBinding.Binders
{
public class KeyValuePairModelBinderTest
{
[Fact]
public void BindModel_MissingKey_ReturnsFalse()
{
// Arrange
KeyValuePairModelBinder<int, string> binder = new KeyValuePairModelBinder<int, string>();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(KeyValuePair<int, string>)),
ModelName = "someName",
ValueProvider = new SimpleHttpValueProvider()
};
HttpActionContext context = ContextUtil.CreateActionContext();
context.ControllerContext.Configuration.Services.Replace(typeof(ModelBinderProvider), new SimpleModelBinderProvider(typeof(KeyValuePair<int, string>), binder));
// Act
bool retVal = binder.BindModel(context, bindingContext);
// Assert
Assert.False(retVal);
Assert.Null(bindingContext.Model);
Assert.Empty(bindingContext.ValidationNode.ChildNodes);
}
[Fact]
public void BindModel_MissingValue_ReturnsTrue()
{
// Arrange
Mock<IModelBinder> mockIntBinder = new Mock<IModelBinder>();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(KeyValuePair<int, string>)),
ModelName = "someName",
ValueProvider = new SimpleHttpValueProvider()
};
HttpActionContext context = ContextUtil.CreateActionContext();
context.ControllerContext.Configuration.Services.Replace(typeof(ModelBinderProvider), new SimpleModelBinderProvider(typeof(int), mockIntBinder.Object) { SuppressPrefixCheck = true });
mockIntBinder
.Setup(o => o.BindModel(context, It.IsAny<ModelBindingContext>()))
.Returns((HttpActionContext cc, ModelBindingContext mbc) =>
{
mbc.Model = 42;
return true;
});
KeyValuePairModelBinder<int, string> binder = new KeyValuePairModelBinder<int, string>();
// Act
bool retVal = binder.BindModel(context, 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
Mock<IModelBinder> mockIntBinder = new Mock<IModelBinder>();
Mock<IModelBinder> mockStringBinder = new Mock<IModelBinder>();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(KeyValuePair<int, string>)),
ModelName = "someName",
ValueProvider = new SimpleHttpValueProvider()
};
HttpActionContext context = ContextUtil.CreateActionContext();
context.ControllerContext.Configuration.Services.ReplaceRange(typeof(ModelBinderProvider),
new ModelBinderProvider[] {
new SimpleModelBinderProvider(typeof(int), mockIntBinder.Object) { SuppressPrefixCheck = true },
new SimpleModelBinderProvider(typeof(string), mockStringBinder.Object) { SuppressPrefixCheck = true }
});
mockIntBinder
.Setup(o => o.BindModel(context, It.IsAny<ModelBindingContext>()))
.Returns((HttpActionContext cc, ModelBindingContext mbc) =>
{
mbc.Model = 42;
return true;
});
mockStringBinder
.Setup(o => o.BindModel(context, It.IsAny<ModelBindingContext>()))
.Returns((HttpActionContext cc, ModelBindingContext mbc) =>
{
mbc.Model = "forty-two";
return true;
});
KeyValuePairModelBinder<int, string> binder = new KeyValuePairModelBinder<int, string>();
// Act
bool retVal = binder.BindModel(context, 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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