Changeset 31040 for trunk/tests/phpunit/tests/image/editor_gd.php

Timestamp:

01/03/2015 10:01:54 PM (10 years ago)

Author:

wonderboymusic

Message:

Preserve alpha transparency when rotating a PNG while GD is the active image editor.

Adds unit tests.

Props frankpw, voldemortensen.
Fixes #30596.

File:

• trunk/tests/phpunit/tests/image/editor_gd.php (modified) (1 diff)

trunk/tests/phpunit/tests/image/editor_gd.php

@@ -500 +500 @@
         unlink( $save_to_file );
     }
+
+    /**
+     *
+     * @ticket 30596
+     */
+    public function test_image_preserves_alpha_on_rotate() {
+        $file = DIR_TESTDATA . '/images/transparent.png';
+
+        $image = imagecreatefrompng( $file );
+        $rgb = imagecolorat( $image, 0, 0 );
+        $expected = imagecolorsforindex( $image, $rgb );
+
+        $editor = new WP_Image_Editor_GD( $file );
+                $this->assertNotInstanceOf( 'WP_Error', $editor );
+                $editor->load();
+                $editor->rotate( 180 );
+                $save_to_file = tempnam( get_temp_dir(), '' ) . '.png';
+
+                $editor->save( $save_to_file );
+
+                $this->assertImageAlphaAtPointGD( $save_to_file, array( 0,0 ), $expected['alpha'] );
+                unlink( $save_to_file );
+
+    }
 }