*/
public function testPixelFormatRendering( $sourceFile, $pixelFormat, $samplingFactor ) {
global $wgUseImageMagick, $wgUseImageResize;
*/
public function testPixelFormatRendering( $sourceFile, $pixelFormat, $samplingFactor ) {
global $wgUseImageMagick, $wgUseImageResize;