function DependencyOrderingTest::testUpdateOrderingModuleInterdependency
Tests that dependencies between modules are resolved correctly.
File
- 
              core/
modules/ system/ tests/ src/ Functional/ UpdateSystem/ DependencyOrderingTest.php, line 58  
Class
- DependencyOrderingTest
 - Tests that update functions are run in the proper order.
 
Namespace
Drupal\Tests\system\Functional\UpdateSystemCode
public function testUpdateOrderingModuleInterdependency() {
  $starting_updates = [
    'update_test_2' => 8001,
    'update_test_3' => 8001,
  ];
  $update_order = array_keys(update_resolve_dependencies($starting_updates));
  // Make sure that each dependency is satisfied.
  $first_dependency_satisfied = array_search('update_test_2_update_8001', $update_order) < array_search('update_test_3_update_8001', $update_order);
  $this->assertTrue($first_dependency_satisfied, 'The dependency of the second module on the first module is respected by the update function order.');
  $second_dependency_satisfied = array_search('update_test_3_update_8001', $update_order) < array_search('update_test_2_update_8002', $update_order);
  $this->assertTrue($second_dependency_satisfied, 'The dependency of the first module on the second module is respected by the update function order.');
}
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