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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Web.Http.Controllers;
using System.Web.Http.Internal;
using System.Web.Http.Metadata.Providers;
using System.Web.Http.Util;
using Moq;
using Xunit;
namespace System.Web.Http.ModelBinding.Binders
{
public class KeyValuePairModelBinderUtilTest
{
[Fact]
public void TryBindStrongModel_BinderExists_BinderReturnsCorrectlyTypedObject_ReturnsTrue()
{
// Arrange
Mock<IModelBinder> mockIntBinder = new Mock<IModelBinder>();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(int)),
ModelName = "someName",
ModelState = new ModelStateDictionary(),
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) =>
{
Assert.Equal("someName.key", mbc.ModelName);
mbc.Model = 42;
return true;
});
// Act
int model;
bool retVal = context.TryBindStrongModel(bindingContext, "key", new EmptyModelMetadataProvider(), out model);
// Assert
Assert.True(retVal);
Assert.Equal(42, model);
Assert.Single(bindingContext.ValidationNode.ChildNodes);
Assert.Empty(bindingContext.ModelState);
}
[Fact]
public void TryBindStrongModel_BinderExists_BinderReturnsIncorrectlyTypedObject_ReturnsTrue()
{
// Arrange
Mock<IModelBinder> mockIntBinder = new Mock<IModelBinder>();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(int)),
ModelName = "someName",
ModelState = new ModelStateDictionary(),
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) =>
{
Assert.Equal("someName.key", mbc.ModelName);
return true;
});
// Act
int model;
bool retVal = context.TryBindStrongModel(bindingContext, "key", new EmptyModelMetadataProvider(), out model);
// Assert
Assert.True(retVal);
Assert.Equal(default(int), model);
Assert.Single(bindingContext.ValidationNode.ChildNodes);
Assert.Empty(bindingContext.ModelState);
}
[Fact]
public void TryBindStrongModel_NoBinder_ReturnsFalse()
{
// Arrange
HttpActionContext context = ContextUtil.CreateActionContext();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(int)),
ModelName = "someName",
ModelState = new ModelStateDictionary(),
ValueProvider = new SimpleHttpValueProvider()
};
// Act
int model;
bool retVal = context.TryBindStrongModel(bindingContext, "key", new EmptyModelMetadataProvider(), out model);
// Assert
Assert.False(retVal);
Assert.Equal(default(int), model);
Assert.Empty(bindingContext.ValidationNode.ChildNodes);
Assert.Empty(bindingContext.ModelState);
}
}
}
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