kompas3d-mcp/tests/Kompas.Mcp.Tests/SketchGeometryTests.cs

using Kompas.Mcp.Core.Modeling;

namespace Kompas.Mcp.Tests;

[Trait("Category", "Unit")]
public sealed class SketchGeometryTests
{
    [Theory]
    [InlineData(true, 1)]
    [InlineData(false, -1)]
    public void ArcDirection_maps_orientation(bool ccw, int expected)
        => Assert.Equal(expected, (int)SketchGeometry.ArcDirection(ccw));

    [Theory]
    [InlineData(true, false)]   // вписанный → describe=false
    [InlineData(false, true)]   // описанный → describe=true
    public void PolygonDescribe_inverts_inscribed(bool inscribed, bool expected)
        => Assert.Equal(expected, SketchGeometry.PolygonDescribe(inscribed));

    [Fact]
    public void RequirePositive_throws_on_zero_or_negative()
    {
        Assert.Throws<ArgumentOutOfRangeException>(() => SketchGeometry.RequirePositive(0, "radius"));
        Assert.Throws<ArgumentOutOfRangeException>(() => SketchGeometry.RequirePositive(-1, "radius"));
        Assert.Null(Record.Exception(() => SketchGeometry.RequirePositive(0.1, "radius")));
    }

    [Fact]
    public void RequireVertexCount_throws_below_three()
    {
        Assert.Throws<ArgumentOutOfRangeException>(() => SketchGeometry.RequireVertexCount(2));
        Assert.Null(Record.Exception(() => SketchGeometry.RequireVertexCount(3)));
    }

    [Fact]
    public void RequirePoints_throws_on_null()
        => Assert.Throws<ArgumentNullException>(
            () => SketchGeometry.RequirePoints(null!, 2, "points"));

    [Fact]
    public void RequirePoints_throws_when_too_few()
        => Assert.Throws<ArgumentException>(
            () => SketchGeometry.RequirePoints(new[] { (0.0, 0.0) }, 2, "points"));

    [Fact]
    public void RequirePoints_throws_on_non_finite()
        => Assert.Throws<ArgumentException>(
            () => SketchGeometry.RequirePoints(new[] { (0.0, 0.0), (double.NaN, 1.0) }, 2, "points"));

    [Fact]
    public void RequirePoints_passes_on_valid()
        => Assert.Null(Record.Exception(
            () => SketchGeometry.RequirePoints(new[] { (0.0, 0.0), (1.0, 1.0) }, 2, "points")));
}