update imagewebp/imagepng test

Author: devnexen

ext/gd/tests/pngcomp.phpt

@@ -12,10 +12,20 @@ gd
 <?php
     $cwd = __DIR__;
 
-    echo "PNG compression test: ";
 
         $im = imagecreatetruecolor(20,20);
         imagefilledrectangle($im, 5,5, 10,10, 0xffffff);
+	try {
+		imagepng($im, $cwd . '/test_pngcomp.png', -2);
+	} catch (\ValueError $e) {
+		echo $e->getMessage() . PHP_EOL;
+	}
+	try {
+		imagepng($im, $cwd . '/test_pngcomp.png', 10);
+	} catch (\ValueError $e) {
+		echo $e->getMessage() . PHP_EOL;
+	}
+    	echo "PNG compression test: ";
         imagepng($im, $cwd . '/test_pngcomp.png', 9);
 
         $im2 = imagecreatefrompng($cwd . '/test_pngcomp.png');
@@ -27,4 +37,6 @@ gd
     @unlink($cwd . "/test_pngcomp.png");
 ?>
 --EXPECT--
+imagepng(): Argument #3 ($quality) must be between -1 and 9
+imagepng(): Argument #3 ($quality) must be between -1 and 9
 PNG compression test: ok

ext/gd/tests/webp_basic.phpt

@@ -37,6 +37,12 @@ $im_lossless = imagecreatefromwebp($filename);
 echo 'Does lossless conversion work? ';
 var_dump(calc_image_dissimilarity($im1, $im_lossless) == 0);
 
+try {
+	imagewebp($im1, $filename, -10);
+} catch (\ValueError $e) {
+	echo $e->getMessage();
+}
+
 ?>
 --CLEAN--
 <?php
@@ -45,3 +51,4 @@ var_dump(calc_image_dissimilarity($im1, $im_lossless) == 0);
 --EXPECT--
 Is lossy conversion close enough? bool(true)
 Does lossless conversion work? bool(true)
+imagewebp(): Argument #3 ($quality) must be at least -1