How can one efficiently test PHP code for watermarking images to identify errors and bugs?

To efficiently test PHP code for watermarking images and identify errors and bugs, one can create a test suite that includes a variety of test cases covering different scenarios such as adding watermarks to images of various formats, sizes, and orientations. By running these tests, one can ensure that the watermarking functionality works correctly under different conditions and detect any potential issues or bugs. 

// Sample PHP code snippet for watermarking images
function addWatermark($imagePath, $watermarkPath, $outputPath) {
    $image = imagecreatefromjpeg($imagePath);
    $watermark = imagecreatefrompng($watermarkPath);

    $imageWidth = imagesx($image);
    $imageHeight = imagesy($image);
    $watermarkWidth = imagesx($watermark);
    $watermarkHeight = imagesy($watermark);

    $destX = $imageWidth - $watermarkWidth - 10; // Adjust positioning as needed
    $destY = $imageHeight - $watermarkHeight - 10; // Adjust positioning as needed

    imagecopy($image, $watermark, $destX, $destY, 0, 0, $watermarkWidth, $watermarkHeight);

    imagejpeg($image, $outputPath);

    imagedestroy($image);
    imagedestroy($watermark);
}

// Test the watermarking function with sample image and watermark
addWatermark('sample.jpg', 'watermark.png', 'output.jpg');

Keywords

PHP image watermarking testing errors bugs

Related Questions