Speed up samples tests by not comparing individual pixels but image content directly

Author: PrinsFrank

tests/Samples/SamplesTest.php

@@ -57,34 +57,10 @@ private static function assertImage(string $expectedImagePath, string $actualIma
             throw new RuntimeException(sprintf('Unable to load expected image "%s"', $expectedImagePath));
         }
 
-        if (str_ends_with($expectedImagePath, '.tiff')) { // gd doesn't have support for tiff so we have to compare the raw content
-            static::assertSame(
-                $expectedImageContent,
-                $actualImageContent,
-                $imageName,
-            );
-
-            return;
-        }
-
-        if (($expectedImage = imagecreatefromstring($expectedImageContent)) === false) {
-            throw new RuntimeException(sprintf('Unable to load expected image "%s"', $imageName));
-        }
-
-        if (($actualImage = imagecreatefromstring($actualImageContent)) === false) {
-            throw new RuntimeException(sprintf('Unable to load actual image "%s"', $imageName));
-        }
-
-        static::assertSame(imagesx($expectedImage), imagesx($actualImage), $imageName);
-        static::assertSame(imagesy($expectedImage), imagesy($actualImage), $imageName);
-        for ($x = 0; $x < imagesx($expectedImage); $x++) {
-            for ($y = 0; $y < imagesy($expectedImage); $y++) {
-                static::assertSame(
-                    imagecolorat($expectedImage, $x, $y),
-                    imagecolorat($actualImage, $x, $y),
-                    $imageName,
-                );
-            }
-        }
+        static::assertSame(
+            $expectedImageContent,
+            $actualImageContent,
+            $imageName,
+        );
     }
 }