AdventOfCode/AdventOfCode.Tests/2d-shapes/LineTests.cs

using AdventOfCode.Core.Shared.Grid;

namespace AdventOfCode.Tests._2d_shapes
{
    [TestFixture]
    public  class LineTests
    {
        private Line TestLine;

        [SetUp]
        public void SetupLine()
        {
            TestLine = new Line(3, 1, 5);
        }

        [Test]
        public void LineInfrontDoesNotIntersect()
        {
            Line line = new Line(0, 1, 3);

            bool intersectResult = TestLine.Intersect(line);

            Assert.That(intersectResult, Is.False);
        }

        [Test]
        public void LineBehindDoesNotIntersect()
        {
            Line line = new Line(8, 1, 3);

            bool intersectResult = TestLine.Intersect(line);

            Assert.That(intersectResult, Is.False);
        }

        [Test]
        public void LineInfrontDoesIntersect()
        {
            Line line = new Line(0, 1, 4);

            bool intersectResult = TestLine.Intersect(line);

            Assert.That(intersectResult, Is.True);
        }

        [Test]
        public void LineBehindDoesIntersect()
        {
            Line line = new Line(7, 1, 3);

            bool intersectResult = TestLine.Intersect(line);

            Assert.That(intersectResult, Is.True);
        }

        [Test]
        public void LineInLineDoesIntersect()
        {
            Line line = new Line(4, 1, 2);

            bool intersectResult = TestLine.Intersect(line);

            Assert.That(intersectResult, Is.True);
        }

        [Test]
        public void LineOverLineDoesIntersect()
        {
            Line line = new Line(2, 1, 8);

            bool intersectResult = TestLine.Intersect(line);

            Assert.That(intersectResult, Is.True);
        }
    }
}