HookOrderEqualPriorityTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\Core\Hook;

use Drupal\Core\Hook\HookOrder;

/**
 * @coversDefaultClass \Drupal\Core\Hook\HookOrder
 *
 * @group Hook
 */
class HookOrderEqualPriorityTest extends HookOrderTestBase {
    protected function setUp() : void {
        parent::setUp();
        // The priority of "a", "b", "c" are the same, the order is undefined.
        $this->setUpContainer(FALSE);
        $this->assertSame($this->getPriority('a'), $this->getPriority('b'));
        $this->assertSame($this->getPriority('b'), $this->getPriority('c'));
    }
    
    /**
     * @covers ::first
     */
    public function testFirst() : void {
        // "c" was first, make "a" the first.
        HookOrder::first($this->container, 'test', 'a::a');
        $this->assertGreaterThan($this->getPriority('c'), $this->getPriority('a'));
        $this->assertGreaterThan($this->getPriority('b'), $this->getPriority('a'));
        // Nothing else can be asserted: by setting the same priority, the setup
        // had undefined order and so the services not included in the helper call
        // can be in any order.
    }
    
    /**
     * @covers ::last
     */
    public function testLast() : void {
        // "c" was first, make it the last.
        HookOrder::last($this->container, 'test', 'c::c');
        $this->assertGreaterThan($this->getPriority('c'), $this->getPriority('a'));
        $this->assertGreaterThan($this->getPriority('c'), $this->getPriority('b'));
        // Nothing else can be asserted: by setting the same priority, the setup
        // had undefined order and so the services not included in the helper call
        // can be in any order.
    }
    
    /**
     * @covers ::before
     */
    public function testBefore() : void {
        // "a" was last, move it before "b".
        HookOrder::before($this->container, 'test', 'a::a', 'b::b');
        $this->assertGreaterThan($this->getPriority('b'), $this->getPriority('a'));
        // Nothing else can be asserted: by setting the same priority, the setup
        // had undefined order and so the services not included in the helper call
        // can be in any order.
    }
    
    /**
     * @covers ::after
     */
    public function testAfter() : void {
        // "c" was first, move it after "b".
        HookOrder::after($this->container, 'test', 'c::c', 'b::b');
        $this->assertGreaterThan($this->getPriority('c'), $this->getPriority('b'));
        // Nothing else can be asserted: by setting the same priority, the setup
        // had undefined order and so the services not included in the helper call
        // can be in any order.
    }

}