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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Globalization;
using System.IO;
using System.Text;
using Moq;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.Mvc.Test
{
public class JsonValueProviderFactoryTest
{
[Fact]
public void GetValueProvider_NullControllerContext_ThrowsException()
{
JsonValueProviderFactory factory = new JsonValueProviderFactory();
Assert.ThrowsArgumentNull(delegate() { factory.GetValueProvider(controllerContext: null); }, "controllerContext");
}
[Fact]
public void GetValueProvider_SimpleArrayJsonObject()
{
const string jsonString = @"
[ ""abc"", null, ""foobar"" ]
";
ControllerContext cc = GetJsonEnabledControllerContext(jsonString);
JsonValueProviderFactory factory = new JsonValueProviderFactory();
// Act & assert
IValueProvider valueProvider = factory.GetValueProvider(cc);
Assert.True(valueProvider.ContainsPrefix("[0]"));
Assert.True(valueProvider.ContainsPrefix("[2]"));
Assert.False(valueProvider.ContainsPrefix("[3]"));
ValueProviderResult vpResult1 = valueProvider.GetValue("[0]");
Assert.Equal("abc", vpResult1.AttemptedValue);
Assert.Equal(CultureInfo.CurrentCulture, vpResult1.Culture);
// null values should exist in the backing store as actual entries
ValueProviderResult vpResult2 = valueProvider.GetValue("[1]");
Assert.NotNull(vpResult2);
Assert.Null(vpResult2.RawValue);
}
[Fact]
public void GetValueProvider_SimpleDictionaryJsonObject()
{
const string jsonString = @"
{ ""FirstName"":""John"",
""LastName"": ""Doe""
}";
ControllerContext cc = GetJsonEnabledControllerContext(jsonString);
JsonValueProviderFactory factory = new JsonValueProviderFactory();
// Act & assert
IValueProvider valueProvider = factory.GetValueProvider(cc);
Assert.True(valueProvider.ContainsPrefix("firstname"));
ValueProviderResult vpResult1 = valueProvider.GetValue("firstname");
Assert.Equal("John", vpResult1.AttemptedValue);
Assert.Equal(CultureInfo.CurrentCulture, vpResult1.Culture);
}
[Fact]
public void GetValueProvider_ComplexJsonObject()
{
// Arrange
const string jsonString = @"
[
{
""BillingAddress"": {
""Street"": ""1 Microsoft Way"",
""City"": ""Redmond"",
""State"": ""WA"",
""ZIP"": 98052 },
""ShippingAddress"": {
""Street"": ""123 Anywhere Ln"",
""City"": ""Anytown"",
""State"": ""ZZ"",
""ZIP"": 99999 }
},
{
""Enchiladas"": [ ""Delicious"", ""Nutritious""]
}
]
";
ControllerContext cc = GetJsonEnabledControllerContext(jsonString);
JsonValueProviderFactory factory = new JsonValueProviderFactory();
// Act & assert
IValueProvider valueProvider = factory.GetValueProvider(cc);
Assert.NotNull(valueProvider);
Assert.True(valueProvider.ContainsPrefix("[0].billingaddress"));
Assert.Null(valueProvider.GetValue("[0].billingaddress"));
Assert.True(valueProvider.ContainsPrefix("[0].billingaddress.street"));
Assert.NotNull(valueProvider.GetValue("[0].billingaddress.street"));
ValueProviderResult vpResult1 = valueProvider.GetValue("[1].enchiladas[0]");
Assert.NotNull(vpResult1);
Assert.Equal("Delicious", vpResult1.AttemptedValue);
Assert.Equal(CultureInfo.CurrentCulture, vpResult1.Culture);
}
[Fact]
public void GetValueProvider_NoJsonBody_ReturnsNull()
{
// Arrange
Mock<ControllerContext> mockControllerContext = new Mock<ControllerContext>();
mockControllerContext.Setup(o => o.HttpContext.Request.ContentType).Returns("application/json");
mockControllerContext.Setup(o => o.HttpContext.Request.InputStream).Returns(new MemoryStream());
JsonValueProviderFactory factory = new JsonValueProviderFactory();
// Act
IValueProvider valueProvider = factory.GetValueProvider(mockControllerContext.Object);
// Assert
Assert.Null(valueProvider);
}
[Fact]
public void GetValueProvider_NotJsonRequest_ReturnsNull()
{
// Arrange
Mock<ControllerContext> mockControllerContext = new Mock<ControllerContext>();
mockControllerContext.Setup(o => o.HttpContext.Request.ContentType).Returns("not JSON");
JsonValueProviderFactory factory = new JsonValueProviderFactory();
// Act
IValueProvider valueProvider = factory.GetValueProvider(mockControllerContext.Object);
// Assert
Assert.Null(valueProvider);
}
private static ControllerContext GetJsonEnabledControllerContext(string jsonString)
{
byte[] jsonBytes = Encoding.UTF8.GetBytes(jsonString);
MemoryStream jsonStream = new MemoryStream(jsonBytes);
Mock<ControllerContext> mockControllerContext = new Mock<ControllerContext>();
mockControllerContext.Setup(o => o.HttpContext.Request.ContentType).Returns("application/json");
mockControllerContext.Setup(o => o.HttpContext.Request.InputStream).Returns(jsonStream);
return mockControllerContext.Object;
}
}
}
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