I need to mock a php function about mockery HOT 1 CLOSED

Hey @MrEko,

I would recommend using a wrapper class for mocking PHP functions.

Here's an example of a wrapper class for shell_exec() that allows for easy testing:

class Shell{
  public function execute($command): string
  {
    return shell_exec($command);
  }
}

$shell = new Shell();
$output = $shell->execute('echo "#BLM"');
echo $output;

class ShellTest extends TestCase
{
    public function testExecute()
    {
        $shell = new Shell();
        $command = 'echo "#BLM"';

        $result = $shell->execute($command);
        $this->assertSame('#BLM', $result);
    }
}

The 2nd option relies overwriting functions by creating functions with the same name and signature, in the same namespace as the class calling the function.

namespace My\Namespace;

function shell_exec(string $command): string|false|null
{
  return null; // eg. always return null
}

class NullShell{
  public function execute($command): null
  {
    return shell_exec($command);
  }
}

This functionality has been implemented by this library https://github.com/php-mock/php-mock-mockery

Let us know if that's helpful,

Please be sure to mark this issue as "resolved" by closing it.

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