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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.IO;
using System.Reflection;
using System.Runtime.Serialization.Json;
using System.Security;
using System.Security.Policy;
using Xunit;
namespace System.Json
{
/// <summary>
/// Tests for using the <see cref="JsonValue"/> types in partial trust.
/// </summary>
[Serializable]
public class JsonValuePartialTrustTests
{
/// <summary>
/// Validates the condition, throwing an exception if it is false.
/// </summary>
/// <param name="condition">The condition to be evaluated.</param>
/// <param name="msg">The exception message to be thrown, in case the condition is false.</param>
public static void AssertIsTrue(bool condition, string msg)
{
if (!condition)
{
throw new InvalidOperationException(msg);
}
}
/// <summary>
/// Validates that the two objects are equal, throwing an exception if it is false.
/// </summary>
/// <param name="obj1">The first object to be compared.</param>
/// <param name="obj2">The second object to be compared.</param>
/// <param name="msg">The exception message to be thrown, in case the condition is false.</param>
public static void AssertAreEqual(object obj1, object obj2, string msg)
{
if (obj1 == obj2)
{
return;
}
if (obj1 == null || obj2 == null || !obj1.Equals(obj2))
{
throw new InvalidOperationException(String.Format("[{0}, {2}] and [{1}, {3}] expected to be equal. {4}", obj1, obj2, obj1.GetType().Name, obj2.GetType().Name, msg));
}
}
/// <summary>
/// Partial trust tests for <see cref="JsonValue"/> instances where no dynamic references are used.
/// </summary>
[Fact(Skip = "Re-enable when CSDMain 216528: 'Partial trust support for Web API' has been fixed")]
public void RunNonDynamicTest()
{
RunInPartialTrust(this.NonDynamicTest);
}
/// <summary>
/// Partial trust tests for <see cref="JsonValue"/> with dynamic references.
/// </summary>
[Fact(Skip = "Re-enable when CSDMain 216528: 'Partial trust support for Web API' has been fixed")]
public void RunDynamicTest()
{
RunInPartialTrust(this.DynamicTest);
}
/// <summary>
/// Tests for <see cref="JsonValue"/> instances without dynamic references.
/// </summary>
public void NonDynamicTest()
{
int seed = GetRandomSeed();
Log.Info("Seed: {0}", seed);
Random rndGen = new Random(seed);
AssertIsTrue(Assembly.GetExecutingAssembly().IsFullyTrusted == false, "Executing assembly not expected to be fully trusted!");
Person person = new Person(rndGen);
Person person2 = new Person(rndGen);
person.AddFriends(3, rndGen);
person2.AddFriends(3, rndGen);
JsonValue jo = JsonValueExtensions.CreateFrom(person);
JsonValue jo2 = JsonValueExtensions.CreateFrom(person2);
AssertAreEqual(person.Address.City, jo["Address"]["City"].ReadAs<string>(), "Address.City");
AssertAreEqual(person.Friends[1].Age, jo["Friends"][1]["Age"].ReadAs<int>(), "Friends[1].Age");
string newCityName = "Bellevue";
jo["Address"]["City"] = newCityName;
AssertAreEqual(newCityName, (string)jo["Address"]["City"], "Address.City2");
jo["Friends"][1] = jo2;
AssertAreEqual(person2.Age, (int)jo["Friends"][1]["Age"], "Friends[1].Age2");
AssertAreEqual(person2.Address.City, jo.ValueOrDefault("Friends").ValueOrDefault(1).ValueOrDefault("Address").ValueOrDefault("City").ReadAs<string>(), "Address.City3");
AssertAreEqual(person2.Age, (int)jo.ValueOrDefault("Friends").ValueOrDefault(1).ValueOrDefault("Age"), "Friends[1].Age3");
AssertAreEqual(person2.Address.City, jo.ValueOrDefault("Friends", 1, "Address", "City").ReadAs<string>(), "Address.City3");
AssertAreEqual(person2.Age, (int)jo.ValueOrDefault("Friends", 1, "Age"), "Friends[1].Age3");
int newAge = 42;
JsonValue ageValue = jo["Friends"][1]["Age"] = newAge;
AssertAreEqual(newAge, (int)ageValue, "Friends[1].Age4");
}
/// <summary>
/// Tests for <see cref="JsonValue"/> instances with dynamic references.
/// </summary>
public void DynamicTest()
{
int seed = GetRandomSeed();
Log.Info("Seed: {0}", seed);
Random rndGen = new Random(seed);
AssertIsTrue(Assembly.GetExecutingAssembly().IsFullyTrusted == false, "Executing assembly not expected to be fully trusted!");
Person person = new Person(rndGen);
person.AddFriends(1, rndGen);
dynamic jo = JsonValueExtensions.CreateFrom(person);
AssertAreEqual(person.Friends[0].Name, jo.Friends[0].Name.ReadAs<string>(), "Friends[0].Name");
AssertAreEqual(person.Address.City, jo.Address.City.ReadAs<string>(), "Address.City");
AssertAreEqual(person.Friends[0].Age, (int)jo.Friends[0].Age, "Friends[0].Age");
string newCityName = "Bellevue";
jo.Address.City = newCityName;
AssertAreEqual(newCityName, (string)jo.Address.City, "Address.City2");
AssertAreEqual(person.Friends[0].Address.City, jo.ValueOrDefault("Friends").ValueOrDefault(0).ValueOrDefault("Address").ValueOrDefault("City").ReadAs<string>(), "Friends[0].Address.City");
AssertAreEqual(person.Friends[0].Age, (int)jo.ValueOrDefault("Friends").ValueOrDefault(0).ValueOrDefault("Age"), "Friends[0].Age2");
AssertAreEqual(person.Friends[0].Address.City, jo.ValueOrDefault("Friends", 0, "Address", "City").ReadAs<string>(), "Friends[0].Address.City");
AssertAreEqual(person.Friends[0].Age, (int)jo.ValueOrDefault("Friends", 0, "Age"), "Friends[0].Age2");
int newAge = 42;
JsonValue ageValue = jo.Friends[0].Age = newAge;
AssertAreEqual(newAge, (int)ageValue, "Friends[0].Age3");
AssertIsTrue(jo.NonExistentProperty is JsonValue, "Expected a JsonValue");
AssertIsTrue(jo.NonExistentProperty.JsonType == JsonType.Default, "Expected default JsonValue");
}
private static void RunInPartialTrust(CrossAppDomainDelegate testMethod)
{
Assert.True(Assembly.GetExecutingAssembly().IsFullyTrusted);
AppDomainSetup setup = new AppDomainSetup();
setup.ApplicationBase = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
PermissionSet perms = PermissionsHelper.InternetZone;
AppDomain domain = AppDomain.CreateDomain("PartialTrustSandBox", null, setup, perms);
domain.DoCallBack(testMethod);
}
private static int GetRandomSeed()
{
DateTime now = DateTime.Now;
return (now.Year * 10000) + (now.Month * 100) + now.Day;
}
internal static class PermissionsHelper
{
private static PermissionSet internetZone;
public static PermissionSet InternetZone
{
get
{
if (internetZone == null)
{
Evidence evidence = new Evidence();
evidence.AddHostEvidence(new Zone(SecurityZone.Internet));
internetZone = SecurityManager.GetStandardSandbox(evidence);
}
return internetZone;
}
}
}
}
}
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