algorithms-and-data-structures/AlgorithmsAndDataStructures.Tests/Algorithm/Search/SublistSearchTests.cs at master · arst/algorithms-and-data-structures · GitHub

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using AlgorithmsAndDataStructures.Algorithms.Search;
using AlgorithmsAndDataStructures.DataStructures.LinkedList;
using Xunit;

namespace AlgorithmsAndDataStructures.Tests.Algorithm.Search;

public class SublistSearchTests
{
    [Fact]
    public void OneNodeList()
    {
        var sut = new SublistSearch();
        var input = new SinglyLinkedList<int>();
        input.Append(1);
        var pattern = new SinglyLinkedList<int>();
        pattern.Append(1);

        Assert.True(sut.IsSubset(input, pattern));
    }

    [Fact]
    public void PatternLongerThenInput()
    {
        var sut = new SublistSearch();
        var input = new SinglyLinkedList<int>();
        input.Append(1);
        var pattern = new SinglyLinkedList<int>();
        pattern.Append(1);
        pattern.Append(2);

        Assert.False(sut.IsSubset(input, pattern));
    }

    [Fact]
    public void InputLongerThenPattern()
    {
        var sut = new SublistSearch();
        var input = new SinglyLinkedList<int>();
        input.Append(1);
        input.Append(2);
        var pattern = new SinglyLinkedList<int>();
        pattern.Append(1);

        Assert.True(sut.IsSubset(input, pattern));
    }

    [Fact]
    public void MatchAtTheEnd()
    {
        var sut = new SublistSearch();
        var input = new SinglyLinkedList<int>();
        input.Append(1);
        input.Append(2);
        input.Append(1);
        input.Append(2);
        input.Append(3);
        input.Append(4);
        var pattern = new SinglyLinkedList<int>();
        pattern.Append(1);
        pattern.Append(2);
        pattern.Append(3);
        pattern.Append(4);

        Assert.True(sut.IsSubset(input, pattern));
    }

    [Fact]
    public void PartialMatch()
    {
        var sut = new SublistSearch();
        var input = new SinglyLinkedList<int>();
        input.Append(1);
        input.Append(2);
        input.Append(2);
        input.Append(1);
        input.Append(2);
        input.Append(3);
        var pattern = new SinglyLinkedList<int>();
        pattern.Append(1);
        pattern.Append(2);
        pattern.Append(3);
        pattern.Append(4);

        Assert.False(sut.IsSubset(input, pattern));
    }

    [Fact]
    public void MatchInTheMiddle()
    {
        var sut = new SublistSearch();
        var input = new SinglyLinkedList<int>();
        input.Append(1);
        input.Append(2);
        input.Append(1);
        input.Append(2);
        input.Append(3);
        input.Append(4);
        input.Append(1);
        input.Append(2);
        var pattern = new SinglyLinkedList<int>();
        pattern.Append(1);
        pattern.Append(2);
        pattern.Append(3);
        pattern.Append(4);

        Assert.True(sut.IsSubset(input, pattern));
    }
}