[ascii] fix test backend compatibility

projects/asciilib2/src/asciilib/backends/test/TestAssetsBackend.hx

@@ -0,0 +1,7 @@
+package asciilib.backends.test;
+
+import asciilib.AssetsBackend;
+import sys.io.File;
+
+@:build(kiss.Kiss.build())
+class TestAssetsBackend implements AssetsBackend {}

projects/asciilib2/src/asciilib/backends/test/TestAssetsBackend.kiss

@@ -0,0 +1,3 @@
+(defmethod new [] 0)
+
+(defmethod loadText [filePath] (File.getContent filePath))

projects/asciilib2/test/src/Main.hx

@@ -8,7 +8,7 @@ import asciilib.backends.test.*;
 
 class Main {
     public static function newGame(logic:GameLogic) {
-        return new Game("Test game", 100, 40, 8, 12, logic, new TestGraphicsBackend());
+        return new Game("Test game", 100, 40, 8, 12, logic, new TestAssetsBackend(), new TestGraphicsBackend());
     }
 
     static function main() {

projects/asciilib2/test/src/cases/DrawOnlyWhenModifiedTestCase.hx

@@ -6,6 +6,7 @@ import asciilib.GameLogic;
 import asciilib.Game;
 import asciilib.Graphics;
 import asciilib.Colors;
+import asciilib.Assets;
 import asciilib.backends.test.TestGraphicsBackend;
 
 class DrawOnlyWhenModifiedGameLogic implements GameLogic {
@@ -13,9 +14,11 @@ class DrawOnlyWhenModifiedGameLogic implements GameLogic {
 
     public function new() {}
 
-    public function update(deltaSeconds:Float):Void {}
+    public function initialize(assets:Assets) {}
 
-    public function draw(graphics:Void->Graphics):Void {
+    public function update(game:Game, deltaSeconds:Float):Void {}
+
+    public function draw(graphics:Void->Graphics, assets:Assets):Void {
         if (firstDraw) {
             graphics().setLetter(0, 0, {char: "@", color: Colors.Red});
             firstDraw = false;