Tests/MathCore.Tests/TreeListNodeTests.cs - dev - shmachilin/MathCore

Tests/MathCore.Tests/TreeListNodeTests.cs
109 строк3 KB
Infarh
Рефакторинг модульных тестов
20 окт 2022, 06:06
20 окт 2022, 06:065dbefb5
using MathCore.Graphs;

// ReSharper disable UnusedMember.Global

namespace MathCore.Tests;

[TestClass]
public class TreeListNodeTests
{
    public TestContext TestContext { get; set; }

    #region Additional test attributes

    //[ClassInitialize]	public static void TreeListNodeInitialize(TestContext testContext)	{ }

    //[ClassCleanup] public static void TreeListNodeCleanup() {	}

    //[TestInitialize] public void Initialize() { }

    //[TestCleanup] public void Cleanup() { }

    #endregion

    [TestMethod, Priority(1), Description("")]
    public void CreateTest()
    {
        var value = 0;
        var node  = new TreeListNode<int>(value);
        Assert.IsTrue(node.IsRoot);
        Assert.IsTrue(node.IsFirst);
        Assert.IsTrue(node.IsLast);
        Assert.IsTrue(node.Prev is null);
        Assert.IsTrue(node.Next is null);
        Assert.IsTrue(node.Child is null);
        Assert.AreEqual(node.Value, value);
    }

    [TestMethod, Priority(1), Description("")]
    public void NextTest()
    {
        const int root_value = 0;
        var       root       = new TreeListNode<int>(root_value);
        Assert.AreEqual(root.Value, root_value);

        const int next_value = 1;
        var       next       = new TreeListNode<int>(next_value);
        Assert.AreEqual(next.Value, next_value);

        root.Next = next;

        Assert.IsTrue(root.Prev is null);
        Assert.IsTrue(ReferenceEquals(root.Next, next));
        Assert.IsTrue(root.Child is null);

        Assert.IsTrue(ReferenceEquals(next.Prev, root));
        Assert.IsTrue(next.Next is null);
        Assert.IsTrue(next.Child is null);

        const int new_next_value = 2;
        var       new_next       = new TreeListNode<int>(new_next_value);
        Assert.AreEqual(new_next.Value, new_next_value);
        root.Next = new_next;

        Assert.IsTrue(ReferenceEquals(root.Next, new_next));
        Assert.IsTrue(ReferenceEquals(new_next.Prev, root));
        Assert.IsTrue(new_next.Next is null);
        Assert.IsTrue(new_next.Child is null);

        Assert.IsTrue(next.Prev is null);
        Assert.IsTrue(next.Next is null);
        Assert.IsTrue(next.Child is null);
    }

    [TestMethod, Priority(1), Description("")]
    public void ChildTest()
    {
        const int root_value = 0;
        var       root       = new TreeListNode<int>(root_value);
        Assert.AreEqual(root.Value, root_value);

        const int child_value = 1;
        var       child       = new TreeListNode<int>(child_value);
        Assert.AreEqual(child.Value, child_value);

        root.Child = child;

        Assert.IsTrue(root.Prev is null);
        Assert.IsTrue(root.Next is null);
        Assert.IsTrue(ReferenceEquals(root.Child, child));

        Assert.IsTrue(ReferenceEquals(child.Prev, root));
        Assert.IsTrue(child.Next is null);
        Assert.IsTrue(child.Child is null);

        const int new_child_value = 2;
        var       new_child       = new TreeListNode<int>(new_child_value);
        Assert.AreEqual(new_child.Value, new_child_value);
        root.Child = new_child;

        Assert.IsTrue(ReferenceEquals(root.Child, new_child));
        Assert.IsTrue(ReferenceEquals(new_child.Prev, root));
        Assert.IsTrue(new_child.Next is null);
        Assert.IsTrue(new_child.Child is null);

        Assert.IsTrue(child.Prev is null);
        Assert.IsTrue(child.Next is null);
        Assert.IsTrue(child.Child is null);
    }
}