Moved unit tests for DrawableBezier to it's own class.

tests/Magick.NET.Tests/Drawing/DrawableBezierTests/TheConstructor.cs

@@ -0,0 +1,51 @@
+// Copyright Dirk Lemstra https://github.com/dlemstra/Magick.NET.
+// Licensed under the Apache License, Version 2.0.
+
+using System;
+using System.Linq;
+using ImageMagick;
+using Xunit;
+
+namespace Magick.NET.Tests;
+
+public partial class DrawableBezierTests
+{
+    public class TheConstructor
+    {
+        [Fact]
+        public void ShouldSetPathsToEmptyCollection()
+        {
+            PointD[] coordinates = [new PointD(0, 0), new PointD(50, 50), new PointD(99, 99)];
+
+            var bezier = new DrawableBezier(coordinates.ToList());
+            Assert.Equal(3, bezier.Coordinates.Count);
+        }
+
+        [Fact]
+        public void ShouldThrowExceptionWhenCoordinatesAreNotSpecified()
+        {
+            Assert.Throws<ArgumentException>("coordinates", () =>
+            {
+                new DrawableBezier();
+            });
+        }
+
+        [Fact]
+        public void ShouldThrowExceptionWhenCoordinatesAreNull()
+        {
+            Assert.Throws<ArgumentNullException>("coordinates", () =>
+            {
+                new DrawableBezier(null);
+            });
+        }
+
+        [Fact]
+        public void ShouldThrowExceptionWhenCoordinatesAreEmpty()
+        {
+            Assert.Throws<ArgumentException>("coordinates", () =>
+            {
+                new DrawableBezier([]);
+            });
+        }
+    }
+}

tests/Magick.NET.Tests/Drawing/DrawableTests.cs

@@ -25,10 +25,6 @@ public void Test_Drawables()
         image.Draw(new DrawableAlpha(0, 0, PaintMethod.Floodfill));
         image.Draw(new DrawableArc(0, 0, 10, 10, 45, 90));
 
-        var bezier = new DrawableBezier(coordinates.ToList());
-        Assert.Equal(3, bezier.Coordinates.Count());
-        image.Draw(bezier);
-
         image.Draw(new DrawableBorderColor(MagickColors.Fuchsia));
         image.Draw(new DrawableCircle(0, 0, 50, 50));
         image.Draw(new DrawableClipPath("foo"));
@@ -178,21 +174,6 @@ public void Test_Drawables_Draw()
     [Fact]
     public void Test_Drawables_Exceptions()
     {
-        Assert.Throws<ArgumentException>("coordinates", () =>
-        {
-            new DrawableBezier();
-        });
-
-        Assert.Throws<ArgumentNullException>("coordinates", () =>
-        {
-            new DrawableBezier(null);
-        });
-
-        Assert.Throws<ArgumentException>("coordinates", () =>
-        {
-            new DrawableBezier(Array.Empty<PointD>());
-        });
-
         Assert.Throws<ArgumentNullException>("clipPath", () =>
         {
             new DrawableClipPath(null);