Add a secret 'static' media engine for fast unit testing

ext/media/main.php

@@ -236,6 +236,9 @@ class Media extends Extension
                 );
                 //}
                 break;
+            case MediaEngine::STATIC:
+                copy($event->input_path, $event->output_path);
+                break;
             default:
                 throw new MediaException("Engine not supported for resize: " . $event->engine);
         }

ext/media/media_engine.php

@@ -5,11 +5,13 @@ abstract class MediaEngine
     public const GD = "gd";
     public const IMAGICK = "convert";
     public const FFMPEG = "ffmpeg";
+    public const STATIC = "static";
 
     public const ALL = [
         MediaEngine::GD,
         MediaEngine::FFMPEG,
-        MediaEngine::IMAGICK
+        MediaEngine::IMAGICK,
+        MediaEngine::STATIC,
     ];
     public const OUTPUT_SUPPORT = [
         MediaEngine::GD => [
@@ -30,8 +32,11 @@ abstract class MediaEngine
         MediaEngine::FFMPEG => [
             "jpg",
             "webp",
-            "png"
-        ]
+            "png",
+        ],
+        MediaEngine::STATIC => [
+            "jpg",
+        ],
     ];
     public const INPUT_SUPPORT = [
         MediaEngine::GD => [
@@ -41,7 +46,7 @@ abstract class MediaEngine
             "png",
             "webp",
             Media::WEBP_LOSSY,
-            Media::WEBP_LOSSLESS
+            Media::WEBP_LOSSLESS,
         ],
         MediaEngine::IMAGICK => [
             "bmp",
@@ -61,7 +66,12 @@ abstract class MediaEngine
             "webm",
             "mp4",
             "mov",
-            "flv"
-        ]
+            "flv",
+        ],
+        MediaEngine::STATIC => [
+            "jpg",
+            "gif",
+            "png",
+        ],
     ];
 }

tests/bootstrap.php

@@ -23,7 +23,7 @@ require_all(zglob("ext/{".Extension::get_enabled_extensions_as_string()."}/main.
 _load_theme_files();
 $page = new Page();
 _load_event_listeners();
-$config->set_string("thumb_engine", "gd");  # GD has less overhead per-call
+$config->set_string("thumb_engine", "static");  # GD has less overhead per-call
 
 send_event(new DatabaseUpgradeEvent());
 send_event(new InitExtEvent());