using System.Drawing;
using NUnit.Framework;

namespace Developpez.Dotnet.Drawing.Tests
{
    [TestFixture]
    public class FontCacheTests
    {
        [Test]
        public void Test_GetFont_ByPrototype()
        {
            FontCache cache = new FontCache();
            Font prototype = SystemFonts.DefaultFont;
            Font first = cache.GetFont(prototype, FontStyle.Bold);
            Font second = cache.GetFont(prototype, FontStyle.Bold);
            Assert.IsTrue(object.ReferenceEquals(first, second));
        }

        [Test]
        public void Test_GetFont_ByFamilyAndSize()
        {
            FontCache cache = new FontCache();
            Font first = cache.GetFont("Arial", 10);
            Font second = cache.GetFont("Arial", 10);
            Font third = cache.GetFont(new FontFamily("Arial"), 10);
            Assert.IsTrue(object.ReferenceEquals(first, second));
            Assert.IsTrue(object.ReferenceEquals(first, third));
        }

        [Test]
        public void Test_GetFont_ByFamilySizeAndUnit()
        {
            FontCache cache = new FontCache();
            Font first = cache.GetFont("Arial", 10, GraphicsUnit.Pixel);
            Font second = cache.GetFont("Arial", 10, GraphicsUnit.Pixel);
            Font third = cache.GetFont(new FontFamily("Arial"), 10, GraphicsUnit.Pixel);
            Assert.IsTrue(object.ReferenceEquals(first, second));
            Assert.IsTrue(object.ReferenceEquals(first, third));
        }

        [Test]
        public void Test_GetFont_ByFamilySizeAndStyle()
        {
            FontCache cache = new FontCache();
            Font first = cache.GetFont("Arial", 10, FontStyle.Bold);
            Font second = cache.GetFont("Arial", 10, FontStyle.Bold);
            Font third = cache.GetFont(new FontFamily("Arial"), 10, FontStyle.Bold);
            Assert.IsTrue(object.ReferenceEquals(first, second));
            Assert.IsTrue(object.ReferenceEquals(first, third));
        }

        [Test]
        public void Test_GetFont_ByFamilySizeStyleAndUnit()
        {
            FontCache cache = new FontCache();
            Font first = cache.GetFont("Arial", 10, FontStyle.Bold, GraphicsUnit.Pixel);
            Font second = cache.GetFont("Arial", 10, FontStyle.Bold, GraphicsUnit.Pixel);
            Font third = cache.GetFont(new FontFamily("Arial"), 10, FontStyle.Bold, GraphicsUnit.Pixel);
            Assert.IsTrue(object.ReferenceEquals(first, second));
            Assert.IsTrue(object.ReferenceEquals(first, third));
        }

        [Test]
        public void Test_GetFont_ByFamilySizeStyleUnitAndGdiCharset()
        {
            FontCache cache = new FontCache();
            Font first = cache.GetFont("Arial", 10, FontStyle.Bold, GraphicsUnit.Pixel, 2);
            Font second = cache.GetFont("Arial", 10, FontStyle.Bold, GraphicsUnit.Pixel, 2);
            Font third = cache.GetFont(new FontFamily("Arial"), 10, FontStyle.Bold, GraphicsUnit.Pixel, 2);
            Assert.IsTrue(object.ReferenceEquals(first, second));
            Assert.IsTrue(object.ReferenceEquals(first, third));
        }

        [Test]
        public void Test_GetFont_ByFamilySizeStyleUnitGdiCharsetAndGdiVerticalFont()
        {
            FontCache cache = new FontCache();
            Font first = cache.GetFont("Arial", 10, FontStyle.Bold, GraphicsUnit.Pixel, 2, true);
            Font second = cache.GetFont("@Arial", 10, FontStyle.Bold, GraphicsUnit.Pixel, 2);
            Font third = cache.GetFont(new FontFamily("Arial"), 10, FontStyle.Bold, GraphicsUnit.Pixel, 2, true);
            Assert.IsTrue(object.ReferenceEquals(first, second));
            Assert.IsTrue(object.ReferenceEquals(first, third));
        }

        [Test]
        public void Test_Clear()
        {
            FontCache cache = new FontCache();
            Font first = cache.GetFont("Arial", 10);
            cache.Clear();
            Font second = cache.GetFont("Arial", 10);
            Assert.IsFalse(object.ReferenceEquals(first, second));
        }
    }
}