436 lines
16 KiB
C#
436 lines
16 KiB
C#
#region License
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// Copyright (c) 2007 James Newton-King
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the "Software"), to deal in the Software without
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// restriction, including without limitation the rights to use,
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// copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following
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// conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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#endregion
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using System.Collections.Generic;
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#if !(NET20 || NET35)
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using System.Linq;
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using System;
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using System.Diagnostics;
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using System.Reflection;
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#if DNXCORE50
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using Xunit;
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using Test = Xunit.FactAttribute;
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using Assert = Newtonsoft.Json.Tests.XUnitAssert;
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#else
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using NUnit.Framework;
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#endif
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using Newtonsoft.Json.Serialization;
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using Newtonsoft.Json.Utilities;
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using Newtonsoft.Json.Tests.TestObjects;
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using Newtonsoft.Json.Tests.TestObjects.Organization;
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using Newtonsoft.Json.Tests.Serialization;
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namespace Newtonsoft.Json.Tests.Utilities
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{
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[TestFixture]
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public class ExpressionReflectionDelegateFactoryTests : TestFixtureBase
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{
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[Test]
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public void ConstructorWithInString()
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{
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ConstructorInfo constructor = TestReflectionUtils.GetConstructors(typeof(InTestClass)).Single(c => c.GetParameters().Count() == 1);
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var creator = ExpressionReflectionDelegateFactory.Instance.CreateParameterizedConstructor(constructor);
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object[] args = new object[] { "Value" };
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InTestClass o = (InTestClass)creator(args);
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Assert.IsNotNull(o);
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Assert.AreEqual("Value", o.Value);
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}
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[Test]
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public void ConstructorWithInStringAndBool()
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{
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ConstructorInfo constructor = TestReflectionUtils.GetConstructors(typeof(InTestClass)).Single(c => c.GetParameters().Count() == 2);
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var creator = ExpressionReflectionDelegateFactory.Instance.CreateParameterizedConstructor(constructor);
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object[] args = new object[] { "Value", true };
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InTestClass o = (InTestClass)creator(args);
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Assert.IsNotNull(o);
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Assert.AreEqual("Value", o.Value);
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Assert.AreEqual(true, o.B1);
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}
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[Test]
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public void ConstructorWithRefString()
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{
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ConstructorInfo constructor = TestReflectionUtils.GetConstructors(typeof(OutAndRefTestClass)).Single(c => c.GetParameters().Count() == 1);
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var creator = ExpressionReflectionDelegateFactory.Instance.CreateParameterizedConstructor(constructor);
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object[] args = new object[] { "Input" };
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OutAndRefTestClass o = (OutAndRefTestClass)creator(args);
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Assert.IsNotNull(o);
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Assert.AreEqual("Input", o.Input);
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}
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[Test]
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public void ConstructorWithRefStringAndOutBool()
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{
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ConstructorInfo constructor = TestReflectionUtils.GetConstructors(typeof(OutAndRefTestClass)).Single(c => c.GetParameters().Count() == 2);
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var creator = ExpressionReflectionDelegateFactory.Instance.CreateParameterizedConstructor(constructor);
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object[] args = new object[] { "Input", null };
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OutAndRefTestClass o = (OutAndRefTestClass)creator(args);
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Assert.IsNotNull(o);
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Assert.AreEqual("Input", o.Input);
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}
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[Test]
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public void ConstructorWithRefStringAndRefBoolAndRefBool()
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{
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ConstructorInfo constructor = TestReflectionUtils.GetConstructors(typeof(OutAndRefTestClass)).Single(c => c.GetParameters().Count() == 3);
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var creator = ExpressionReflectionDelegateFactory.Instance.CreateParameterizedConstructor(constructor);
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object[] args = new object[] { "Input", true, null };
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OutAndRefTestClass o = (OutAndRefTestClass)creator(args);
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Assert.IsNotNull(o);
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Assert.AreEqual("Input", o.Input);
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Assert.AreEqual(true, o.B1);
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Assert.AreEqual(false, o.B2);
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}
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[Test]
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public void DefaultConstructor()
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{
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Func<object> create = ExpressionReflectionDelegateFactory.Instance.CreateDefaultConstructor<object>(typeof(Movie));
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Movie m = (Movie)create();
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Assert.IsNotNull(m);
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}
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[Test]
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public void DefaultConstructor_Struct()
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{
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Func<object> create = ExpressionReflectionDelegateFactory.Instance.CreateDefaultConstructor<object>(typeof(StructTest));
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StructTest m = (StructTest)create();
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Assert.IsNotNull(m);
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}
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[Test]
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public void DefaultConstructor_Abstract()
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{
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ExceptionAssert.Throws<Exception>(
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() =>
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{
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Func<object> create = ExpressionReflectionDelegateFactory.Instance.CreateDefaultConstructor<object>(typeof(Type));
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create();
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}, new[]
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{
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"Cannot create an abstract class.",
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"Cannot create an abstract class 'System.Type'.", // mono
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"Cannot dynamically create an instance of type 'System.Type'. Reason: Cannot create an abstract class." // net60
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});
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}
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[Test]
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public void CreatePropertySetter()
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{
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Action<object, object> setter = ExpressionReflectionDelegateFactory.Instance.CreateSet<object>(TestReflectionUtils.GetProperty(typeof(Movie), "Name"));
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Movie m = new Movie();
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setter(m, "OH HAI!");
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Assert.AreEqual("OH HAI!", m.Name);
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}
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[Test]
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public void CreatePropertyGetter()
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{
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Func<object, object> getter = ExpressionReflectionDelegateFactory.Instance.CreateGet<object>(TestReflectionUtils.GetProperty(typeof(Movie), "Name"));
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Movie m = new Movie();
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m.Name = "OH HAI!";
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object value = getter(m);
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Assert.AreEqual("OH HAI!", value);
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}
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[Test]
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public void CreateMethodCall()
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{
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MethodCall<object, object> method = ExpressionReflectionDelegateFactory.Instance.CreateMethodCall<object>(TestReflectionUtils.GetMethod(typeof(Movie), "ToString"));
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Movie m = new Movie();
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object result = method(m);
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Assert.AreEqual("Newtonsoft.Json.Tests.TestObjects.Movie", result);
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method = ExpressionReflectionDelegateFactory.Instance.CreateMethodCall<object>(TestReflectionUtils.GetMethod(typeof(Movie), "Equals"));
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result = method(m, m);
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Assert.AreEqual(true, result);
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}
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[Test]
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public void CreateMethodCall_Constructor()
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{
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MethodCall<object, object> method = ExpressionReflectionDelegateFactory.Instance.CreateMethodCall<object>(typeof(Movie).GetConstructor(new Type[0]));
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object result = method(null);
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Assert.IsTrue(result is Movie);
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}
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public static class StaticTestClass
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{
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public static string StringField;
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public static string StringProperty { get; set; }
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}
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[Test]
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public void GetStatic()
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{
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StaticTestClass.StringField = "Field!";
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StaticTestClass.StringProperty = "Property!";
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Func<object, object> getter = ExpressionReflectionDelegateFactory.Instance.CreateGet<object>(TestReflectionUtils.GetProperty(typeof(StaticTestClass), "StringProperty"));
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object v = getter(null);
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Assert.AreEqual(StaticTestClass.StringProperty, v);
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getter = ExpressionReflectionDelegateFactory.Instance.CreateGet<object>(TestReflectionUtils.GetField(typeof(StaticTestClass), "StringField"));
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v = getter(null);
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Assert.AreEqual(StaticTestClass.StringField, v);
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}
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[Test]
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public void SetStatic()
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{
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Action<object, object> setter = ExpressionReflectionDelegateFactory.Instance.CreateSet<object>(TestReflectionUtils.GetProperty(typeof(StaticTestClass), "StringProperty"));
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setter(null, "New property!");
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Assert.AreEqual("New property!", StaticTestClass.StringProperty);
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setter = ExpressionReflectionDelegateFactory.Instance.CreateSet<object>(TestReflectionUtils.GetField(typeof(StaticTestClass), "StringField"));
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setter(null, "New field!");
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Assert.AreEqual("New field!", StaticTestClass.StringField);
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}
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public class FieldsTestClass
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{
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public string StringField;
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public bool BoolField;
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public readonly int IntReadOnlyField = int.MaxValue;
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}
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[Test]
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public void CreateGetField()
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{
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FieldsTestClass c = new FieldsTestClass
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{
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BoolField = true,
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StringField = "String!"
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};
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Func<object, object> getter = ExpressionReflectionDelegateFactory.Instance.CreateGet<object>(TestReflectionUtils.GetField(typeof(FieldsTestClass), "StringField"));
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object value = getter(c);
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Assert.AreEqual("String!", value);
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getter = ExpressionReflectionDelegateFactory.Instance.CreateGet<object>(TestReflectionUtils.GetField(typeof(FieldsTestClass), "BoolField"));
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value = getter(c);
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Assert.AreEqual(true, value);
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}
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[Test]
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public void CreateSetField_ReadOnly()
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{
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FieldsTestClass c = new FieldsTestClass();
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Action<object, object> setter = ExpressionReflectionDelegateFactory.Instance.CreateSet<object>(TestReflectionUtils.GetField(typeof(FieldsTestClass), "IntReadOnlyField"));
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setter(c, int.MinValue);
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Assert.AreEqual(int.MinValue, c.IntReadOnlyField);
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}
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[Test]
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public void CreateSetField()
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{
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FieldsTestClass c = new FieldsTestClass();
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Action<object, object> setter = ExpressionReflectionDelegateFactory.Instance.CreateSet<object>(TestReflectionUtils.GetField(typeof(FieldsTestClass), "StringField"));
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setter(c, "String!");
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Assert.AreEqual("String!", c.StringField);
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setter = ExpressionReflectionDelegateFactory.Instance.CreateSet<object>(TestReflectionUtils.GetField(typeof(FieldsTestClass), "BoolField"));
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setter(c, true);
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Assert.AreEqual(true, c.BoolField);
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}
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[Test]
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public void SetOnStruct()
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{
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object structTest = new StructTest();
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Action<object, object> setter = ExpressionReflectionDelegateFactory.Instance.CreateSet<object>(TestReflectionUtils.GetProperty(typeof(StructTest), "StringProperty"));
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setter(structTest, "Hi1");
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Assert.AreEqual("Hi1", ((StructTest)structTest).StringProperty);
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setter = ExpressionReflectionDelegateFactory.Instance.CreateSet<object>(TestReflectionUtils.GetField(typeof(StructTest), "StringField"));
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setter(structTest, "Hi2");
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Assert.AreEqual("Hi2", ((StructTest)structTest).StringField);
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}
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[Test]
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public void CreateGetWithBadObjectTarget()
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{
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ExceptionAssert.Throws<InvalidCastException>(
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() =>
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{
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Person p = new Person();
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p.Name = "Hi";
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Func<object, object> setter = ExpressionReflectionDelegateFactory.Instance.CreateGet<object>(TestReflectionUtils.GetProperty(typeof(Movie), "Name"));
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setter(p);
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},
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new[]
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{
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"Unable to cast object of type 'Newtonsoft.Json.Tests.TestObjects.Organization.Person' to type 'Newtonsoft.Json.Tests.TestObjects.Movie'.",
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"Cannot cast from source type to destination type." // mono
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});
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}
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[Test]
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public void CreateSetWithBadObjectTarget()
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{
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ExceptionAssert.Throws<InvalidCastException>(
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() =>
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{
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Person p = new Person();
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Movie m = new Movie();
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Action<object, object> setter = ExpressionReflectionDelegateFactory.Instance.CreateSet<object>(TestReflectionUtils.GetProperty(typeof(Movie), "Name"));
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setter(m, "Hi");
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Assert.AreEqual(m.Name, "Hi");
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setter(p, "Hi");
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Assert.AreEqual(p.Name, "Hi");
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},
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new[]
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{
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"Unable to cast object of type 'Newtonsoft.Json.Tests.TestObjects.Organization.Person' to type 'Newtonsoft.Json.Tests.TestObjects.Movie'.",
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"Cannot cast from source type to destination type." // mono
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});
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}
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[Test]
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public void CreateSetWithBadObjectValue()
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{
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ExceptionAssert.Throws<InvalidCastException>(
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() =>
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{
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Movie m = new Movie();
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Action<object, object> setter = ExpressionReflectionDelegateFactory.Instance.CreateSet<object>(TestReflectionUtils.GetProperty(typeof(Movie), "Name"));
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setter(m, new Version("1.1.1.1"));
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}, new[]
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{
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"Unable to cast object of type 'System.Version' to type 'System.String'.",
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"Cannot cast from source type to destination type." //mono
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});
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}
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[Test]
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public void CreateStaticMethodCall()
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{
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MethodInfo castMethodInfo = typeof(DictionaryKey).GetMethod("op_Implicit", new[] { typeof(string) });
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Assert.IsNotNull(castMethodInfo);
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MethodCall<object, object> call = ExpressionReflectionDelegateFactory.Instance.CreateMethodCall<object>(castMethodInfo);
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object result = call(null, "First!");
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Assert.IsNotNull(result);
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DictionaryKey key = (DictionaryKey)result;
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Assert.AreEqual("First!", key.Value);
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}
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[Test]
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public void ConstructorStruct()
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{
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Func<object> creator1 = ExpressionReflectionDelegateFactory.Instance.CreateDefaultConstructor<object>(typeof(MyStruct));
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MyStruct myStruct1 = (MyStruct)creator1.Invoke();
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Assert.AreEqual(0, myStruct1.IntProperty);
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Func<MyStruct> creator2 = ExpressionReflectionDelegateFactory.Instance.CreateDefaultConstructor<MyStruct>(typeof(MyStruct));
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MyStruct myStruct2 = creator2.Invoke();
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Assert.AreEqual(0, myStruct2.IntProperty);
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}
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public struct TestStruct
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{
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public TestStruct(int i)
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{
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Value = i;
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}
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public int Value { get; }
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}
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public static TestStruct StructMethod(TestStruct s)
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{
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return new TestStruct(s.Value + s.Value);
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}
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[Test]
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public void CreateStructMethodCall()
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{
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MethodInfo methodInfo = typeof(ExpressionReflectionDelegateFactoryTests).GetMethod(nameof(StructMethod), new[] { typeof(TestStruct) });
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Assert.IsNotNull(methodInfo);
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MethodCall<object, object> call = ExpressionReflectionDelegateFactory.Instance.CreateMethodCall<object>(methodInfo);
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object result = call(null, new TestStruct(123));
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Assert.IsNotNull(result);
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TestStruct s = (TestStruct)result;
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Assert.AreEqual(246, s.Value);
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}
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}
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}
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#endif |