Improved isolated unit test.

Author: dlemstra

tests/Magick.NET.Tests/Coders/TheEpsCoder.cs

@@ -14,61 +14,70 @@ public void ShouldReadTwoImages()
     {
         Assert.SkipUnless(Ghostscript.IsAvailable, "Ghostscript is not available");
 
-        using var images = new MagickImageCollection(Files.Coders.SwedenHeartEPS);
+        IsolatedUnitTest.Execute(() =>
+        {
+            using var images = new MagickImageCollection(Files.Coders.SwedenHeartEPS);
 
-        Assert.Equal(2, images.Count);
+            Assert.Equal(2, images.Count);
 
-        Assert.Equal(447U, images[0].Width);
-        Assert.Equal(420U, images[0].Height);
-        Assert.Equal(MagickFormat.Ept, images[0].Format);
+            Assert.Equal(447U, images[0].Width);
+            Assert.Equal(420U, images[0].Height);
+            Assert.Equal(MagickFormat.Ept, images[0].Format);
 
-        Assert.Equal(447U, images[1].Width);
-        Assert.Equal(420U, images[1].Height);
-        Assert.Equal(MagickFormat.Tiff, images[1].Format);
+            Assert.Equal(447U, images[1].Width);
+            Assert.Equal(420U, images[1].Height);
+            Assert.Equal(MagickFormat.Tiff, images[1].Format);
+        });
     }
 
     [Fact]
     public void ShouldReadMonoChromeImageWhenUseMonochromeIsTrue()
     {
         Assert.SkipUnless(Ghostscript.IsAvailable, "Ghostscript is not available");
 
-        var settings = new MagickReadSettings
+        IsolatedUnitTest.Execute(() =>
         {
-            UseMonochrome = true,
-        };
-
-        using var image = new MagickImage(Files.Coders.SwedenHeartEPS, settings);
-
-        Assert.Equal(447U, image.Width);
-        Assert.Equal(420U, image.Height);
-        ColorAssert.Equal(MagickColors.Black, image, 223, 61);
-        ColorAssert.Equal(MagickColors.Black, image, 263, 255);
-        ColorAssert.Equal(MagickColors.White, image, 223, 62);
-        ColorAssert.Equal(MagickColors.White, image, 193, 254);
+            var settings = new MagickReadSettings
+            {
+                UseMonochrome = true,
+            };
+
+            using var image = new MagickImage(Files.Coders.SwedenHeartEPS, settings);
+
+            Assert.Equal(447U, image.Width);
+            Assert.Equal(420U, image.Height);
+            ColorAssert.Equal(MagickColors.Black, image, 223, 61);
+            ColorAssert.Equal(MagickColors.Black, image, 263, 255);
+            ColorAssert.Equal(MagickColors.White, image, 223, 62);
+            ColorAssert.Equal(MagickColors.White, image, 193, 254);
+        });
     }
 
     [Fact]
     public void ShouldReadClipPathsInTiffPreview()
     {
         Assert.SkipUnless(Ghostscript.IsAvailable, "Ghostscript is not available");
 
-        using var images = new MagickImageCollection(Files.Coders.SwedenHeartEPS);
+        IsolatedUnitTest.Execute(() =>
+        {
+            using var images = new MagickImageCollection(Files.Coders.SwedenHeartEPS);
 
-        var profile = images[1].Get8BimProfile();
+            var profile = images[1].Get8BimProfile();
 
-        Assert.NotNull(profile);
+            Assert.NotNull(profile);
 
-        var clipPaths = profile.ClipPaths;
+            var clipPaths = profile.ClipPaths;
 
-        Assert.Single(clipPaths);
+            Assert.Single(clipPaths);
 
-        var clipPath = clipPaths[0].Path.CreateNavigator()?.OuterXml;
+            var clipPath = clipPaths[0].Path.CreateNavigator()?.OuterXml;
 
-        var expected = @"<svg width=""447"" height=""420"">
+            var expected = @"<svg width=""447"" height=""420"">
   <g>
     <path fill=""#00000000"" stroke=""#00000000"" stroke-width=""0"" stroke-antialiasing=""false"" d=""M 130 24&#xA;C 177.197 22.997 198.698 39.3 224 59&#xA;C 226.333 56.667 228.667 54.333 231 52&#xA;C 252.311 41.657 267.075 28.759 297 24&#xA;C 376.672 11.329 446.714 100.194 419 180&#xA;C 405.782 218.063 373.582 241.858 348 268&#xA;C 306.671 310.996 265.329 354.004 224 397&#xA;C 223 396.333 222 395.667 221 395&#xA;C 208.335 382.001 195.665 368.999 183 356&#xA;C 156.003 327.336 128.997 298.664 102 270&#xA;C 81.254 247.261 53.218 227.821 38 200&#xA;C 12.841 154.003 26.357 90.226 56 60&#xA;C 80.776 34.737 95.296 37.972 130 24 Z&#xA;"" />
   </g>
 </svg>";
-        Assert.Equal(expected, clipPath);
+            Assert.Equal(expected, clipPath);
+        });
     }
 }