[Feature Request]: Allow the activation of dependencies before package #9

Is your feature request related to a problem?

When testing a plugin that depends on other plugins, such as WooCommerce, woocommerce has to be activated before the plugin itself, otherwise, an error is thrown and the process stops:

Warning: Failed to activate plugin. XXX requires 1 plugin to be installed and activated: WooCommerce. Please contact your network administrator.
Error: No plugins activated.

Currently, this is not something we support. However, since we have multiple WooCommerce payment gateways and other extensions, this won't be a one-time requirement.

Describe the desired solution

A possible solution could be to take into account the Requires Plugins field from the plugin header https://make.wordpress.org/core/2024/03/05/introducing-plugin-dependencies-in-wordpress-6-5/.

/**
 * Plugin Name: Some
 * Requires Plugins: woocommerce
 */

And have a dedicated task that would do something similar:

readonly class ActivateTestedPluginDependencies implements Task
{
    public function __construct(
        private LocalDependencyPath $packageRootPath,
        private WpCli $wpCli,
    ) {
    }

    public function execute(): void
    {
        $name = Path::getFilenameWithoutExtension($this->packageRootPath->path());

        $requiredDependencies = json_decode(
            $this->wpCli->run(['plugin', 'get', $name, '--format=json', '--field=requires_plugins']),
            true,
        );

        if ($requiredDependencies === '') {
            return;
        }

        foreach (explode(',',  $requiredDependencies) as $dependency) {
            $this->wpCli->run(['plugin', 'activate', $dependency]);
        }
    }
}

Describe the alternatives that you have considered

Currently, this can be circumvented by customizing the setup as follows:

Bootstrap::init(
    $packagePath,
    new BootstrapLifecycle(
        setup: static function (): void {
            try {
                WpTestEnv::setup();
            } catch (Throwable) {
            }

            WpTestEnv::runWpCliCommand(['plugin', 'activate', 'woocommerce']);
            ServiceLocator::retrieve(ActivateTestedPlugin::class)->execute();
        },
    ),
);

First, we need to catch the exception thrown by the missing dependency, activate the dependency (in this case, WooCommerce), and then call the activation step/task again.

Additional context

The activation of the test plugin happens automatically using ActivateTestedPlugin which is part of the "setup" phases.

https://github.com/inpsyde/wp-phpunit-integration/blob/main/src/Task/ActivateTestedPlugin.php

We don't throw a specific exception from the CLI, so we can't differentiate between the WP-CLI activation problem and something else.

The WpCli does not return anything at this point.

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