Contao\CoreBundle\Test\Contao\ImageTest::testGetImageHook PHP Method

    public function testGetImageHook()
    {
        $file = new \File('dummy.jpg');
        // Build cache before adding the hook
        $imageObj = new Image($file);
        $imageObj->setTargetWidth(50)->setTargetHeight(50);
        $imageObj->executeResize();
        $GLOBALS['TL_HOOKS'] = ['getImage' => [[get_class($this), 'getImageHookCallback']]];
        $imageObj = new Image($file);
        $imageObj->setTargetWidth(100)->setTargetHeight(100);
        $imageObj->executeResize();
        $this->assertSame('assets/dummy.jpg%26getImage_100_100_crop_Contao-File__Contao-Image.jpg', $imageObj->getResizedPath());
        $imageObj = new Image($file);
        $imageObj->setTargetWidth(50)->setTargetHeight(50);
        $imageObj->executeResize();
        $this->assertRegExp('(^assets/images/.*dummy.*.jpg$)', $imageObj->getResizedPath(), 'Hook should not get called for cached images');
        $imageObj = new Image($file);
        $imageObj->setTargetWidth($file->width)->setTargetHeight($file->height);
        $imageObj->executeResize();
        $this->assertSame('dummy.jpg', $imageObj->getResizedPath(), 'Hook should not get called if no resize is necessary');
        unset($GLOBALS['TL_HOOKS']);
    }