Update tests to handle no longer raising

mtreinish · mtreinish · commit 6215cd3e0fe1 · 2023-07-06T09:28:35.000-04:00
diff --git a/Tests/test_file_jpeg.py b/Tests/test_file_jpeg.py
@@ -929,11 +929,10 @@ def test_repr_jpeg(self):
             assert repr_jpeg.format == "JPEG"
             assert_image_similar(im, repr_jpeg, 17)
 
-    def test_repr_jpeg_error(self):
+    def test_repr_jpeg_error_returns_none(self):
         im = hopper("F")
 
-        with pytest.raises(ValueError):
-            im._repr_jpeg_()
+        assert im._repr_jpeg_() is None
 
 
 @pytest.mark.skipif(not is_win32(), reason="Windows only")
diff --git a/Tests/test_file_png.py b/Tests/test_file_png.py
@@ -532,11 +532,10 @@ def test_repr_png(self):
             assert repr_png.format == "PNG"
             assert_image_equal(im, repr_png)
 
-    def test_repr_png_error(self):
+    def test_repr_png_error_returns_none(self):
         im = hopper("F")
 
-        with pytest.raises(ValueError):
-            im._repr_png_()
+        assert im._repr_png_() is None
 
     def test_chunk_order(self, tmp_path):
         with Image.open("Tests/images/icc_profile.png") as im:
