Add lossless encode test which checks the expected bytes count of the…

… encoded file
SixLabors · Dec 4, 2021 · 3780ca7 · 3780ca7
1 parent 72c6f52
commit 3780ca7
Showing 1 changed file with 18 additions and 0 deletions.
diff --git a/tests/ImageSharp.Tests/Formats/WebP/WebpEncoderTests.cs b/tests/ImageSharp.Tests/Formats/WebP/WebpEncoderTests.cs
@@ -101,6 +101,24 @@ public void Encode_Lossless_WithDifferentMethodAndQuality_Works<TPixel>(TestImag
             image.VerifyEncoder(provider, "webp", testOutputDetails, encoder);
         }
 
+        [Theory]
+        [WithFile(Lossy.NoFilter06, PixelTypes.Rgba32, 15114)]
+        public void Encode_Lossless_WithBestQuality_HasExpectedSize<TPixel>(TestImageProvider<TPixel> provider, int expectedBytes)
+            where TPixel : unmanaged, IPixel<TPixel>
+        {
+            var encoder = new WebpEncoder()
+            {
+                FileFormat = WebpFileFormatType.Lossless,
+                Method = WebpEncodingMethod.BestQuality
+            };
+
+            using Image<TPixel> image = provider.GetImage();
+            using var memoryStream = new MemoryStream();
+            image.Save(memoryStream, encoder);
+
+            Assert.Equal(memoryStream.Length, expectedBytes);
+        }
+
         [Theory]
         [WithFile(RgbTestPattern100x100, PixelTypes.Rgba32, 85)]
         [WithFile(RgbTestPattern100x100, PixelTypes.Rgba32, 60)]