How to test file uploads and downloads in PHPUnit?

To test file uploads and downloads in PHPUnit, you can follow these steps:

  1. Install the Guzzle HTTP client library, which provides a convenient way to send HTTP requests and handle file uploads and downloads:

    composer require guzzlehttp/guzzle --dev
  2. Create a new test case class that extends PHPUnit\Framework\TestCase:

    use PHPUnit\Framework\TestCase; class FileUploadDownloadTest extends TestCase { // ... }
  3. Implement a test for file uploads. This can be done by sending a multipart/form-data POST request with a file attachment:

    public function testFileUpload() { $client = new \GuzzleHttp\Client(); $response = $client->request('POST', 'http://example.com/upload', [ 'multipart' => [ [ 'name' => 'file', 'contents' => fopen('/path/to/file', 'r'), ], ], ]); $this->assertEquals(200, $response->getStatusCode()); // Perform additional assertions on the uploaded file if needed }
  4. Implement a test for file downloads. This can be done by sending a GET request to the file URL, and then saving the response body to a file:

    public function testFileDownload() { $client = new \GuzzleHttp\Client(); $response = $client->request('GET', 'http://example.com/download/file', [ 'sink' => '/path/to/save/file', ]); $this->assertEquals(200, $response->getStatusCode()); // Perform additional assertions on the downloaded file if needed }
  5. Run the PHPUnit tests and verify that the file uploads and downloads are working as expected:

    ./vendor/bin/phpunit

By following these steps, you can effectively test file uploads and downloads in PHPUnit using the Guzzle HTTP client library.