PHP code example of kajstrom / dependency-constraints

1. Go to this page and download the library: Download kajstrom/dependency-constraints library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

kajstrom / dependency-constraints example snippets


    class MyDependencyTest extends TestCase
    {
        /** @var  DependencyConstraints */
        private static $dc;
    
        public static function setUpBeforeClass()
        {
            self::$dc = new DependencyConstraints("/path/to/myproject/src");
        }
    
        public function testModuleAIsNotDependentOnModuleX()
        {
            $moduleA = self::$dc->getModule("MyProject\\ModuleA");
    
            $this->assertFalse(
                $moduleA->dependsOnModule("MyProject\\ModuleX"),
                $moduleA->describeDependenciesTo("MyProject\\ModuleX"),
            );
        }
    }


public function testBusinessLayerDoesNotDependOnPresentationLayer()
{
    $dc = new DependencyConstraints("path/to/my/src");
    $business = $dc->getModule("MyProject\\Business");
    
    $this->assertFalse(
        $business->dependsOnModule("MyProject\\Presentation"),
        $business->describeDependenciesTo("MyProject\\Presentation")
    );
}


public function testModuleADoesNotDependUponModuleB()
{
    $dc = new DependencyConstraints("path/to/my/src");
    $moduleA = $dc->getModule("MyProject\\ModuleA");
    
    $this->assertFalse(
        $moduleA->dependsOnModule("MyProject\\ModuleB"),
        $moduleA->describeDependenciesTo("MyProject\\ModuleB")
    );
}


public function testApplicationLayerDoesNotDependOnSymfonyHttpFoundation()
{
    $dc = new DependencyConstraints("path/to/my/src");
    $application = $dc->getModule("MyProject\Application");
    
    $this->assertFalse(
        $application->dependsOnModule("Symfony\\HttpFoundation"),
        $application->describeDependenciesTo("Symfony\\HttpFoundation")
    );
}


public function testModuleDoesNotDependOnSingleton()
{
    $dc = new DependencyConstraints("path/to/my/src");
    $module = $dc->getModule("MyProject\\Module");
    
    $this->assertFalse($module->hasDependencyOn("MyProject\\Utils\\SingletonThatSeemedAGoodIdeaBackThen");
}


$className = "MyProject\\Module\\Class";
$instance = new $className;