Changeset 1182 in tests

Timestamp:

01/04/2013 10:56:13 AM (13 years ago)

Author:

joehoyle

Message:

Add some tests for WP_Image_Editor_GD, specifically testing image alpha testing. see #23039

Location:

trunk/tests/image

Files:

• base.php (modified) (1 diff)
• editor_gd.php (added)

trunk/tests/image/base.php

@@ -31 +31 @@
         return array( $this->editor_engine );
     }
+
+    /**
+     * Helper assertion for testing alpha on images
+     * 
+     * @param  string $image_path
+     * @param  array $point      array(x,y)
+     * @param  int $alpha
+     */
+    protected function assertImageAlphaAtPoint( $image_path, $point, $alpha ) {
+
+        $im = imagecreatefrompng( $image_path );
+        $rgb = imagecolorat($im, $point[0], $point[1]);
+
+        $colors = imagecolorsforindex($im, $rgb);
+
+        $this->assertEquals( $alpha, $colors['alpha'] );
+    }
 }