aspnetcore/test/Microsoft.AspNet.Mvc.ModelB.../Binders/ArrayModelBinderTest.cs

108 lines
3.5 KiB
C#

// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
#if DNX451
using System.Threading.Tasks;
using Moq;
using Xunit;
namespace Microsoft.AspNet.Mvc.ModelBinding.Test
{
public class ArrayModelBinderTest
{
[Fact]
public async Task BindModel()
{
// Arrange
var valueProvider = new SimpleHttpValueProvider
{
{ "someName[0]", "42" },
{ "someName[1]", "84" }
};
var bindingContext = GetBindingContext(valueProvider);
var binder = new ArrayModelBinder<int>();
// Act
var retVal = await binder.BindModelAsync(bindingContext);
// Assert
Assert.NotNull(retVal);
int[] array = retVal.Model as int[];
Assert.Equal(new[] { 42, 84 }, array);
}
[Fact]
public async Task GetBinder_ValueProviderDoesNotContainPrefix_ReturnsNull()
{
// Arrange
var bindingContext = GetBindingContext(new SimpleHttpValueProvider());
var binder = new ArrayModelBinder<int>();
// Act
var bound = await binder.BindModelAsync(bindingContext);
// Assert
Assert.Null(bound);
}
[Fact]
public async Task GetBinder_ModelMetadataReturnsReadOnly_ReturnsNull()
{
// Arrange
var valueProvider = new SimpleHttpValueProvider
{
{ "foo[0]", "42" },
};
var bindingContext = GetBindingContext(valueProvider, isReadOnly: true);
var binder = new ArrayModelBinder<int>();
// Act
var bound = await binder.BindModelAsync(bindingContext);
// Assert
Assert.Null(bound);
}
private static IModelBinder CreateIntBinder()
{
var mockIntBinder = new Mock<IModelBinder>();
mockIntBinder
.Setup(o => o.BindModelAsync(It.IsAny<ModelBindingContext>()))
.Returns(async (ModelBindingContext mbc) =>
{
var value = await mbc.ValueProvider.GetValueAsync(mbc.ModelName);
if (value != null)
{
var model = value.ConvertTo(mbc.ModelType);
return new ModelBindingResult(model, key: null, isModelSet: true);
}
return null;
});
return mockIntBinder.Object;
}
private static ModelBindingContext GetBindingContext(
IValueProvider valueProvider,
bool isReadOnly = false)
{
var metadataProvider = new TestModelMetadataProvider();
metadataProvider.ForType<int[]>().BindingDetails(bd => bd.IsReadOnly = isReadOnly);
var bindingContext = new ModelBindingContext
{
ModelMetadata = metadataProvider.GetMetadataForType(typeof(int[])),
ModelName = "someName",
ValueProvider = valueProvider,
OperationBindingContext = new OperationBindingContext
{
ModelBinder = CreateIntBinder(),
MetadataProvider = metadataProvider
},
};
return bindingContext;
}
}
}
#endif