Nuclex.Support/Source/Cloning/ExpressionTreeCloner.Test.cs

#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2010 Nuclex Development Labs

This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.

You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion

#if UNITTEST

using System;
using System.Collections.Generic;

using NUnit.Framework;

namespace Nuclex.Support.Cloning {

	/// <summary>Unit Test for the expression tree-based cloner</summary>
	[TestFixture]
	public class ExpressionTreeClonerTest : CloneFactoryTest {

		/// <summary>Initializes a new unit test suite for the reflection cloner</summary>
		public ExpressionTreeClonerTest() {
			this.cloneFactory = new ExpressionTreeCloner();
		}

		/// <summary>Verifies that clones of primitive types can be created</summary>
		[Test]
		public void PrimitiveTypesCanBeCloned() {
			int original = 12345;
			int clone = this.cloneFactory.DeepClone(original, false);
			Assert.AreEqual(original, clone);
		}

		/// <summary>Verifies that shallow clones of arrays can be made</summary>
		[Test]
		public void ReferenceTypesCanBeCloned() {
			var original = new TestReferenceType() { TestField = 123, TestProperty = 456 };
			TestReferenceType clone = this.cloneFactory.DeepClone(original, false);

			Assert.AreNotSame(original, clone);
			Assert.AreEqual(original.TestField, clone.TestField);
			Assert.AreEqual(original.TestProperty, clone.TestProperty);
		}

		/// <summary>Verifies that shallow clones of arrays can be made</summary>
		[Test]
		public void PrimitiveArraysCanBeCloned() {
			var original = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
			int[] clone = this.cloneFactory.DeepClone(original, false);

			Assert.AreNotSame(original, clone);
			CollectionAssert.AreEqual(original, clone);
		}

		/// <summary>Verifies that shallow clones of arrays can be made</summary>
		[Test]
		public void ShallowClonesOfArraysCanBeMade() {
			var original = new TestReferenceType[] {
        new TestReferenceType() { TestField = 123, TestProperty = 456 }
      };
			TestReferenceType[] clone = this.cloneFactory.ShallowClone(original, false);

			Assert.AreSame(original[0], clone[0]);
		}

		/// <summary>Verifies that deep clones of arrays can be made</summary>
		[Test]
		public void DeepClonesOfArraysCanBeMade() {
			var original = new TestReferenceType[,] {
        {
          new TestReferenceType() { TestField = 123, TestProperty = 456 }
        }
      };
			TestReferenceType[,] clone = this.cloneFactory.DeepClone(original, false);

			Assert.AreNotSame(original[0, 0], clone[0, 0]);
			Assert.AreEqual(original[0, 0].TestField, clone[0, 0].TestField);
			Assert.AreEqual(original[0, 0].TestProperty, clone[0, 0].TestProperty);
		}

		/// <summary>Verifies that deep clones of a generic list can be made</summary>
		[Test]
		public void GenericListsCanBeCloned() {
			var original = new List<int>(new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 });
			List<int> clone = this.cloneFactory.DeepClone(original, false);

			CollectionAssert.AreEqual(original, clone);
		}

		/// <summary>Verifies that deep clones of a generic dictionary can be made</summary>
		[Test]
		public void GenericDictionariesCanBeCloned() {
			var original = new Dictionary<int, string>();
			original.Add(1, "one");
			Dictionary<int, string> clone = this.cloneFactory.DeepClone(original, false);

			Assert.AreEqual("one", clone[1]);
		}

		/// <summary>
		///   Verifies that a field-based shallow clone of a value type can be performed
		/// </summary>
		[Test]
		public void ShallowFieldBasedClonesOfValueTypesCanBeMade() {
			HierarchicalValueType original = CreateValueType();
			HierarchicalValueType clone = this.cloneFactory.ShallowClone(original, false);
			VerifyClone(ref original, ref clone, isDeepClone: false, isPropertyBasedClone: false);
		}

		/// <summary>
		///   Verifies that a field-based shallow clone of a reference type can be performed
		/// </summary>
		[Test]
		public void ShallowFieldBasedClonesOfReferenceTypesCanBeMade() {
			HierarchicalReferenceType original = CreateReferenceType();
			HierarchicalReferenceType clone = this.cloneFactory.ShallowClone(original, false);
			VerifyClone(original, clone, isDeepClone: false, isPropertyBasedClone: false);
		}

		/// <summary>
		///   Verifies that a field-based deep clone of a value type can be performed
		/// </summary>
		[Test]
		public void DeepFieldBasedClonesOfValueTypesCanBeMade() {
			HierarchicalValueType original = CreateValueType();
			HierarchicalValueType clone = this.cloneFactory.DeepClone(original, false);
			VerifyClone(ref original, ref clone, isDeepClone: true, isPropertyBasedClone: false);
		}

		/// <summary>
		///   Verifies that a field-based deep clone of a reference type can be performed
		/// </summary>
		[Test]
		public void DeepFieldBasedClonesOfReferenceTypesCanBeMade() {
			HierarchicalReferenceType original = CreateReferenceType();
			HierarchicalReferenceType clone = this.cloneFactory.DeepClone(original, false);
			VerifyClone(original, clone, isDeepClone: true, isPropertyBasedClone: false);
		}

#if false
    /// <summary>
    ///   Verifies that a property-based shallow clone of a value type can be performed
    /// </summary>
    [Test]
    public void ShallowPropertyBasedClonesOfValueTypesCanBeMade() {
      HierarchicalValueType original = CreateValueType();
      HierarchicalValueType clone = this.cloneFactory.ShallowClone(original, true);
      VerifyClone(ref original, ref clone, isDeepClone: false, isPropertyBasedClone: true);
    }

    /// <summary>
    ///   Verifies that a property-based shallow clone of a reference type can be performed
    /// </summary>
    [Test]
    public void ShallowPropertyBasedClonesOfReferenceTypesCanBeMade() {
      HierarchicalReferenceType original = CreateReferenceType();
      HierarchicalReferenceType clone = this.cloneFactory.ShallowClone(original, true);
      VerifyClone(original, clone, isDeepClone: false, isPropertyBasedClone: true);
    }
#endif

#if false
    /// <summary>
    ///   Verifies that a property-based deep clone of a value type can be performed
    /// </summary>
    [Test]
    public void DeepPropertyBasedClonesOfValueTypesCanBeMade() {
      HierarchicalValueType original = CreateValueType();
      HierarchicalValueType clone = this.cloneFactory.DeepClone(original, true);
      VerifyClone(ref original, ref clone, isDeepClone: true, isPropertyBasedClone: true);
    }

    /// <summary>
    ///   Verifies that a property-based deep clone of a reference type can be performed
    /// </summary>
    [Test]
    public void DeepPropertyBasedClonesOfReferenceTypesCanBeMade() {
      HierarchicalReferenceType original = CreateReferenceType();
      HierarchicalReferenceType clone = this.cloneFactory.DeepClone(original, true);
      VerifyClone(original, clone, isDeepClone: true, isPropertyBasedClone: true);
    }
#endif

		/// <summary>Clone factory being tested</summary>
		private ICloneFactory cloneFactory;

	}

} // namespace Nuclex.Support.Cloning

#endif // UNITTEST