How to test file uploads in PHPUnit?

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by dana , in category: PHP General , 7 months ago

How to test file uploads in PHPUnit?

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1 answer

by lindsey.homenick , 7 months ago

@dana 

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

  1. Create a test case class that extends the PHPUnitFrameworkTestCase class.
  2. Inside the test case class, create a function for testing file uploads, for example:
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public function testFileUpload()
{
    // Create a fake file to upload
    $file = sys_get_temp_dir() . '/testfile.txt'; // This will create the temporary file in the system's temporary directory
    file_put_contents($file, 'Test file content');

    // Upload the file using a POST request
    $response = $this->uploadFile($file);

    // Assert the response to check if the file was uploaded successfully
    $this->assertEquals(200, $response->getStatusCode());
    $this->assertFileExists('path/to/uploaded/files/testfile.txt'); // Replace the path with the actual upload directory path

    // Clean up the temporary file
    unlink($file);
}


  1. Create a helper function uploadFile to simulate the file upload. This function can make use of the GuzzleHttpClient or any other HTTP client library to send a POST request with the file as a multipart form-data.
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private function uploadFile($file)
{
    $client = new GuzzleHttpClient();
    return $client->request('POST', 'http://example.com/upload', [
        'multipart' => [
            [
                'name' => 'file',
                'contents' => fopen($file, 'r'),
                'filename' => basename($file)
            ]
        ]
    ]);
}


Make sure to adjust the URL and form field name according to your application's upload endpoint.

  1. Run the PHPUnit test using the following command:
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phpunit --bootstrap vendor/autoload.php tests/YourTestCase.php


Replace vendor/autoload.php with the path to your autoload.php file, and tests/YourTestCase.php with the path to your test case file.


These steps should allow you to test file uploads in PHPUnit.