Moved legacy exif data loading test from PngDecoderTests to PngMetadataTests.

tests/ImageSharp.Tests/Formats/Png/PngDecoderTests.cs

@@ -444,24 +444,5 @@ namespace SixLabors.ImageSharp.Tests.Formats.Png
                     "Disco")
                 .Dispose();
         }
-
-        [Theory]
-        [WithFile(TestImages.Png.Issue1875, PixelTypes.Rgba32)]
-        public void PngDecoder_CanDecode_LegacyTextExifChunk(TestImageProvider<Rgba32> provider)
-        {
-            using Image<Rgba32> image = provider.GetImage(PngDecoder);
-
-            Assert.Equal(0, image.Metadata.ExifProfile.InvalidTags.Count);
-            Assert.Equal(3, image.Metadata.ExifProfile.Values.Count);
-
-            Assert.Equal(
-                "A colorful tiling of blue, red, yellow, and green 4x4 pixel blocks.",
-                image.Metadata.ExifProfile.GetValue(ImageSharp.Metadata.Profiles.Exif.ExifTag.ImageDescription).Value);
-            Assert.Equal(
-                "Duplicated from basn3p02.png, then image metadata modified with exiv2",
-                image.Metadata.ExifProfile.GetValue(ImageSharp.Metadata.Profiles.Exif.ExifTag.ImageHistory).Value);
-
-            Assert.Equal(42, (int)image.Metadata.ExifProfile.GetValue(ImageSharp.Metadata.Profiles.Exif.ExifTag.ImageNumber).Value);
-        }
     }
 }

tests/ImageSharp.Tests/Formats/Png/PngMetadataTests.cs

@@ -289,5 +289,31 @@ namespace SixLabors.ImageSharp.Tests.Formats.Png
             Assert.Contains(meta.TextData, m => m.Keyword is "NoLang" && m.Value is "this text chunk is missing a language tag");
             Assert.Contains(meta.TextData, m => m.Keyword is "NoTranslatedKeyword" && m.Value is "dieser chunk hat kein übersetztes Schlüßelwort");
         }
+
+        [Theory]
+        [InlineData(TestImages.Png.Issue1875)]
+        public void Identify_ReadsLegacyExifData(string imagePath)
+        {
+            var testFile = TestFile.Create(imagePath);
+            using (var stream = new MemoryStream(testFile.Bytes, false))
+            {
+                IImageInfo imageInfo = Image.Identify(stream);
+                Assert.NotNull(imageInfo);
+                Assert.NotNull(imageInfo.Metadata.ExifProfile);
+                ExifProfile exif = imageInfo.Metadata.ExifProfile;
+
+                Assert.Equal(0, exif.InvalidTags.Count);
+                Assert.Equal(3, exif.Values.Count);
+
+                Assert.Equal(
+                    "A colorful tiling of blue, red, yellow, and green 4x4 pixel blocks.",
+                    exif.GetValue(ExifTag.ImageDescription).Value);
+                Assert.Equal(
+                    "Duplicated from basn3p02.png, then image metadata modified with exiv2",
+                    exif.GetValue(ExifTag.ImageHistory).Value);
+
+                Assert.Equal(42, (int)exif.GetValue(ExifTag.ImageNumber).Value);
+            }
+        }
     }
 }