In PHP file storage, how do I write unit tests?

In PHP, you can write unit tests using tools like PHPUnit. Writing unit tests helps ensure that your code is functioning as expected.


        <?php
        use PHPUnit\Framework\TestCase;

        class StorageTest extends TestCase
        {
            public function testFileStorage()
            {
                $filename = 'testfile.txt';

                // Write content to the file
                file_put_contents($filename, 'Hello, World!');

                // Assert that the file exists
                $this->assertFileExists($filename);

                // Read content from the file
                $content = file_get_contents($filename);
                
                // Assert that the content is correct
                $this->assertEquals('Hello, World!', $content);
                
                // Clean up
                unlink($filename);
            }
        }
        ?>