function AutowireTest::testCoreServiceAliasInterfaces

Tests that core service aliases match the interfaces they map to.

File

core/tests/Drupal/KernelTests/Core/DependencyInjection/AutowireTest.php, line 139

Class

AutowireTest

Tests auto-wiring services.

Namespace

Code

public function testCoreServiceAliasInterfaces() : void {
  $services = [];
  $aliases = [];
  foreach ($this->getCoreServiceFiles() as $filename) {
    foreach (Yaml::decode(file_get_contents($filename))['services'] ?? [] as $id => $service) {
      if (is_string($service)) {
        $aliases[$id] = substr($service, 1);
      }
      else {
        $services[$id] = $service['class'] ?? $id;
      }
    }
  }
  $mismatched = [];
  foreach ($aliases as $alias => $service) {
    $this->assertArrayHasKey($service, $services);
    if (interface_exists($alias)) {
      // The service class must implement the aliased interface.
      if (!is_subclass_of($services[$service], $alias)) {
        $mismatched[] = sprintf('%s aliases to @%s (class %s) which does not implement %s', $alias, $service, $services[$service], $alias);
      }
    }
    else {
      // The service class must be the aliased class or a subclass of it.
      if ($services[$service] !== $alias) {
        $mismatched[] = sprintf('%s aliases to @%s (class %s) which is not an instance of %s', $alias, $service, $services[$service], $alias);
      }
    }
  }
  $this->assertEmpty($mismatched, 'The following core service aliases do not match their interfaces:' . PHP_EOL . implode(PHP_EOL, $mismatched));
}