// Copyright Dirk Lemstra https://github.com/dlemstra/Magick.NET.
// Licensed under the Apache License, Version 2.0.

using ImageMagick.Drawing;
using Xunit;

namespace Magick.NET.Tests;

public partial class DrawablesTests
{
    public class TheFontTypeMetricsMethod
    {
        [Fact]
        public void ShouldReturnTheCorrectTypeMetrics()
        {
            var drawables = new Drawables()
                .Font("Arial")
                .FontPointSize(15);

            var typeMetric = drawables.FontTypeMetrics("Magick.NET");

            Assert.NotNull(typeMetric);
            Assert.Equal(14, typeMetric.Ascent);
            Assert.Equal(-4, typeMetric.Descent);
            Assert.Equal(30, typeMetric.MaxHorizontalAdvance);
            Assert.Equal(18, typeMetric.TextHeight);
            Assert.Equal(82, typeMetric.TextWidth);
            Assert.Equal(-2.138671875, typeMetric.UnderlinePosition);
            Assert.Equal(1.0986328125, typeMetric.UnderlineThickness);
        }

        [Fact]
        public void ShouldUseTheFontSize()
        {
            var drawables = new Drawables()
                .Font("Arial")
                .FontPointSize(150);

            var typeMetric = drawables.FontTypeMetrics("Magick.NET");

            Assert.NotNull(typeMetric);
            Assert.Equal(136, typeMetric.Ascent);
            Assert.Equal(-32, typeMetric.Descent);
            Assert.Equal(300, typeMetric.MaxHorizontalAdvance);
            Assert.Equal(168, typeMetric.TextHeight);
            Assert.Equal(817, typeMetric.TextWidth);
            Assert.Equal(-21.38671875, typeMetric.UnderlinePosition);
            Assert.Equal(10.986328125, typeMetric.UnderlineThickness);
        }
    }
}
