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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Net;
using System.Net.Http;
using System.Net.Http.Formatting;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.Http.Controllers
{
public class ValueResultConverterTest
{
private readonly ValueResultConverter<object> _objectValueConverter = new ValueResultConverter<object>();
private readonly ValueResultConverter<Animal> _animalValueConverter = new ValueResultConverter<Animal>();
private readonly HttpControllerContext _context = new HttpControllerContext();
private readonly HttpRequestMessage _request = new HttpRequestMessage();
public ValueResultConverterTest()
{
_context.Request = _request;
_context.Configuration = new HttpConfiguration();
}
[Fact]
public void Convert_WhenContextIsNull_Throws()
{
Assert.ThrowsArgumentNull(() => _objectValueConverter.Convert(controllerContext: null, actionResult: new object()), "controllerContext");
}
[Fact]
public void Convert_WhenValueTypeIsNotCompatible_Throws()
{
Assert.Throws<InvalidCastException>(() => _animalValueConverter.Convert(_context, new object()),
"Unable to cast object of type 'System.Object' to type 'Animal'.");
}
[Fact]
public void Convert_WhenValueIsResponseMessage_ReturnsResponseMessageWithRequestAssigned()
{
HttpResponseMessage response = new HttpResponseMessage();
var result = _objectValueConverter.Convert(_context, response);
Assert.Same(response, result);
Assert.Same(_request, result.RequestMessage);
}
[Fact]
public void Convert_WhenValueIsAnyType_CreatesContentNegotiatedResponse()
{
Dog dog = new Dog();
XmlMediaTypeFormatter formatter = new XmlMediaTypeFormatter();
_context.Configuration.Formatters.Clear();
_context.Configuration.Formatters.Add(formatter);
var result = _animalValueConverter.Convert(_context, dog);
Assert.Equal(HttpStatusCode.OK, result.StatusCode);
var content = Assert.IsType<ObjectContent<Animal>>(result.Content);
Assert.Same(dog, content.Value);
Assert.Same(formatter, content.Formatter);
Assert.Same(_request, result.RequestMessage);
}
public class Animal { }
public class Dog : Animal { }
}
}