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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.Globalization;
using System.Linq;
using System.Web.Http.Controllers;
using System.Web.Http.Metadata.Providers;
using System.Web.Http.ModelBinding.Binders;
using System.Web.Http.Util;
using System.Web.Http.Validation;
using Moq;
using Xunit;
namespace System.Web.Http.ModelBinding
{
public class CollectionModelBinderTest
{
[Fact]
public void BindComplexCollectionFromIndexes_FiniteIndexes()
{
// Arrange
CultureInfo culture = CultureInfo.GetCultureInfo("fr-FR");
Mock<IModelBinder> mockIntBinder = new Mock<IModelBinder>();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(int)),
ModelName = "someName",
ValueProvider = new SimpleHttpValueProvider
{
{ "someName[foo]", "42" },
{ "someName[baz]", "200" }
}
};
HttpActionContext context = ContextUtil.CreateActionContext();
context.ControllerContext.Configuration.Services.Replace(typeof(ModelBinderProvider), new SimpleModelBinderProvider(typeof(int), mockIntBinder.Object));
mockIntBinder
.Setup(o => o.BindModel(context, It.IsAny<ModelBindingContext>()))
.Returns((HttpActionContext ec, ModelBindingContext mbc) =>
{
mbc.Model = mbc.ValueProvider.GetValue(mbc.ModelName).ConvertTo(mbc.ModelType);
return true;
});
// Act
List<int> boundCollection = CollectionModelBinder<int>.BindComplexCollectionFromIndexes(context, bindingContext, new[] { "foo", "bar", "baz" });
// Assert
Assert.Equal(new[] { 42, 0, 200 }, boundCollection.ToArray());
Assert.Equal(new[] { "someName[foo]", "someName[baz]" }, bindingContext.ValidationNode.ChildNodes.Select(o => o.ModelStateKey).ToArray());
}
[Fact]
public void BindComplexCollectionFromIndexes_InfiniteIndexes()
{
// Arrange
CultureInfo culture = CultureInfo.GetCultureInfo("fr-FR");
Mock<IModelBinder> mockIntBinder = new Mock<IModelBinder>();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(int)),
ModelName = "someName",
ValueProvider = new SimpleHttpValueProvider
{
{ "someName[0]", "42" },
{ "someName[1]", "100" },
{ "someName[3]", "400" }
}
};
HttpActionContext context = ContextUtil.CreateActionContext();
context.ControllerContext.Configuration.Services.Replace(typeof(ModelBinderProvider), new SimpleModelBinderProvider(typeof(int), mockIntBinder.Object));
mockIntBinder
.Setup(o => o.BindModel(context, It.IsAny<ModelBindingContext>()))
.Returns((HttpActionContext ec, ModelBindingContext mbc) =>
{
mbc.Model = mbc.ValueProvider.GetValue(mbc.ModelName).ConvertTo(mbc.ModelType);
return true;
});
// Act
List<int> boundCollection = CollectionModelBinder<int>.BindComplexCollectionFromIndexes(context, bindingContext, null /* indexNames */);
// Assert
Assert.Equal(new[] { 42, 100 }, boundCollection.ToArray());
Assert.Equal(new[] { "someName[0]", "someName[1]" }, bindingContext.ValidationNode.ChildNodes.Select(o => o.ModelStateKey).ToArray());
}
[Fact]
public void BindModel_ComplexCollection()
{
// Arrange
CultureInfo culture = CultureInfo.GetCultureInfo("fr-FR");
Mock<IModelBinder> mockIntBinder = new Mock<IModelBinder>();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(int)),
ModelName = "someName",
ValueProvider = new SimpleHttpValueProvider
{
{ "someName.index", new[] { "foo", "bar", "baz" } },
{ "someName[foo]", "42" },
{ "someName[bar]", "100" },
{ "someName[baz]", "200" }
}
};
HttpActionContext context = ContextUtil.CreateActionContext();
context.ControllerContext.Configuration.Services.Replace(typeof(ModelBinderProvider), new SimpleModelBinderProvider(typeof(int), mockIntBinder.Object));
mockIntBinder
.Setup(o => o.BindModel(context, It.IsAny<ModelBindingContext>()))
.Returns((HttpActionContext ec, ModelBindingContext mbc) =>
{
mbc.Model = mbc.ValueProvider.GetValue(mbc.ModelName).ConvertTo(mbc.ModelType);
return true;
});
CollectionModelBinder<int> modelBinder = new CollectionModelBinder<int>();
// Act
bool retVal = modelBinder.BindModel(context, bindingContext);
// Assert
Assert.Equal(new[] { 42, 100, 200 }, ((List<int>)bindingContext.Model).ToArray());
}
[Fact]
public void BindModel_SimpleCollection()
{
// Arrange
CultureInfo culture = CultureInfo.GetCultureInfo("fr-FR");
Mock<IModelBinder> mockIntBinder = new Mock<IModelBinder>();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(int)),
ModelName = "someName",
ValueProvider = new SimpleHttpValueProvider
{
{ "someName", new[] { "42", "100", "200" } }
}
};
HttpActionContext context = ContextUtil.CreateActionContext();
context.ControllerContext.Configuration.Services.Replace(typeof(ModelBinderProvider), new SimpleModelBinderProvider(typeof(int), mockIntBinder.Object));
mockIntBinder
.Setup(o => o.BindModel(context, It.IsAny<ModelBindingContext>()))
.Returns((HttpActionContext ec, ModelBindingContext mbc) =>
{
mbc.Model = mbc.ValueProvider.GetValue(mbc.ModelName).ConvertTo(mbc.ModelType);
return true;
});
CollectionModelBinder<int> modelBinder = new CollectionModelBinder<int>();
// Act
bool retVal = modelBinder.BindModel(context, bindingContext);
// Assert
Assert.True(retVal);
Assert.Equal(new[] { 42, 100, 200 }, ((List<int>)bindingContext.Model).ToArray());
}
[Fact]
public void BindSimpleCollection_RawValueIsEmptyCollection_ReturnsEmptyList()
{
// Act
List<int> boundCollection = CollectionModelBinder<int>.BindSimpleCollection(null, null, new object[0], null);
// Assert
Assert.NotNull(boundCollection);
Assert.Empty(boundCollection);
}
[Fact]
public void BindSimpleCollection_RawValueIsNull_ReturnsNull()
{
// Act
List<int> boundCollection = CollectionModelBinder<int>.BindSimpleCollection(null, null, null, null);
// Assert
Assert.Null(boundCollection);
}
[Fact(Skip = "is this test checking a valid invariant?")]
public void BindSimpleCollection_SubBinderDoesNotExist()
{
// Arrange
CultureInfo culture = CultureInfo.GetCultureInfo("fr-FR");
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(int)),
ModelName = "someName",
ValueProvider = new SimpleHttpValueProvider()
};
HttpActionContext context = ContextUtil.CreateActionContext();
context.ControllerContext.Configuration.Services.Replace(typeof(ModelBinderProvider), null); // completely remove from resolution?
// Act
List<int> boundCollection = CollectionModelBinder<int>.BindSimpleCollection(context, bindingContext, new int[1], culture);
// Assert
Assert.Equal(new[] { 0 }, boundCollection.ToArray());
Assert.Empty(bindingContext.ValidationNode.ChildNodes);
}
[Fact]
public void BindSimpleCollection_SubBindingSucceeds()
{
// Arrange
CultureInfo culture = CultureInfo.GetCultureInfo("fr-FR");
Mock<IModelBinder> mockIntBinder = new Mock<IModelBinder>();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(null, typeof(int)),
ModelName = "someName",
ValueProvider = new SimpleHttpValueProvider()
};
HttpActionContext context = ContextUtil.CreateActionContext();
context.ControllerContext.Configuration.Services.Replace(typeof(ModelBinderProvider), new SimpleModelBinderProvider(typeof(int), mockIntBinder.Object));
ModelValidationNode childValidationNode = null;
mockIntBinder
.Setup(o => o.BindModel(context, It.IsAny<ModelBindingContext>()))
.Returns((HttpActionContext ec, ModelBindingContext mbc) =>
{
Assert.Equal("someName", mbc.ModelName);
childValidationNode = mbc.ValidationNode;
mbc.Model = 42;
return true;
});
// Act
List<int> boundCollection = CollectionModelBinder<int>.BindSimpleCollection(context, bindingContext, new int[1], culture);
// Assert
Assert.Equal(new[] { 42 }, boundCollection.ToArray());
Assert.Equal(new[] { childValidationNode }, bindingContext.ValidationNode.ChildNodes.ToArray());
}
}
}
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