/**
* Tests the JImage::rotate() method. To test this we create an image that contains a red
* horizontal line in the middle of the image, and a white vertical line in the middle of the
* image. Once the image is rotated 90 degrees we test the end points of the lines to ensure that
* the colors have swapped.
*
* @return void
*
* @since 11.3
*/
public function testRotate()
{
// Create a image handle of the correct size.
$imageHandle = imagecreatetruecolor(101, 101);
// Define red and white.
$red = imagecolorallocate($imageHandle, 255, 0, 0);
$white = imagecolorallocate($imageHandle, 255, 255, 255);
// Draw a red horizontal line in the middle of the image.
imageline($imageHandle, 5, 50, 95, 50, $red);
// Draw a white vertical line in the middle of the image.
imageline($imageHandle, 50, 5, 50, 95, $white);
// Create a new JImageInspector from the image handle.
$image = new JImageInspector($imageHandle);
// Crop the image to specifications.
$image->rotate(90, -1, false);
// Validate the correct pixels for the ends of the lines.
// Red line.
$this->assertEquals($red, imagecolorat($image->getClassProperty('handle'), 50, 5));
$this->assertEquals($red, imagecolorat($image->getClassProperty('handle'), 50, 95));
// White line.
$this->assertEquals($white, imagecolorat($image->getClassProperty('handle'), 5, 50));
$this->assertEquals($white, imagecolorat($image->getClassProperty('handle'), 95, 50));
}
