bug in PHPUnit Manual 9.5: Examples 3.1

[ricfio]

Problem

Q	A
PHPUnit version	9.5.4
PHP version	8.0.1
Installation Method	Composer

Fatal error: Namespace declaration statement has to be the very first statement or after any declare call in the script in /workspaces/phpunit-tutorial/www/tests/TestCaseClass.php on line 4

Fix

ricfio#3

How to reproduce

Example 3.1 Named data sets

<?php
use PHPUnit\Framework\TestCase;

namespace TestNamespace;

class TestCaseClass extends TestCase
{
    /**
     * @dataProvider provider
     */
    public function testMethod($data)
    {
        $this->assertTrue($data);
    }

    public function provider()
    {
        return [
            'my named data' => [true],
            'my data'       => [true]
        ];
    }
}

# phpunit tests/TestCaseClass.php
Fatal error: Namespace declaration statement has to be the very first statement or after any declare call in the script in /workspaces/phpunit-tutorial/www/tests/TestCaseClass.php on line 4

How to solve

In tests/DataTest.php apply this fix

- use PHPUnit\Framework\TestCase;

  namespace TestNamespace;

+ use PHPUnit\Framework\TestCase;
+