Contao\CoreBundle\Test\Contao\GdImageTest::testIsSemitransparent PHP Method

    public function testIsSemitransparent()
    {
        $image = imagecreatetruecolor(100, 100);
        imagealphablending($image, false);
        $image = new GdImage($image);
        imagefill($image->getResource(), 0, 0, imagecolorallocatealpha($image->getResource(), 0, 0, 0, 0));
        $this->assertFalse($image->isSemitransparent());
        imagefill($image->getResource(), 0, 0, imagecolorallocatealpha($image->getResource(), 0, 0, 0, 127));
        $this->assertFalse($image->isSemitransparent());
        imagefill($image->getResource(), 0, 0, imagecolorallocatealpha($image->getResource(), 0, 0, 0, 126));
        $this->assertTrue($image->isSemitransparent());
        imagefill($image->getResource(), 0, 0, imagecolorallocatealpha($image->getResource(), 0, 0, 0, 1));
        $this->assertTrue($image->isSemitransparent());
        imagefill($image->getResource(), 0, 0, imagecolorallocatealpha($image->getResource(), 0, 0, 0, 0));
        $this->assertFalse($image->isSemitransparent());
    }