function ModuleHandlerTest::testHasImplementations

Tests hasImplementations.

@legacy-covers ::hasImplementations

File

core/tests/Drupal/Tests/Core/Extension/ModuleHandlerTest.php, line 411

Class

ModuleHandlerTest

Tests Drupal\Core\Extension\ModuleHandler.

Namespace

Code

public function testHasImplementations() : void {
  $implementations = [
    'some_hook' => [
      TestHookClass::class . '::someMethod' => 'some_module',
    ],
    // Set up a hook list closure with empty result.
    // This can theoretically happen if the implementations are for modules that
    // are not installed.
'empty_hook' => [],
  ];
  $module_handler = $this->getModuleHandler([], $implementations);
  $module_handler->setModuleList([
    'some_module' => TRUE,
  ]);
  $r = new \ReflectionObject($module_handler);
  $get_lists = fn() => $r->getProperty('hookImplementationLists')
    ->getValue($module_handler);
  $this->assertSame([], $get_lists());
  $this->assertTrue($module_handler->hasImplementations('some_hook'));
  $this->assertEquals([
    'some_hook' => new ImplementationList([
      TestHookClass::class . '::someMethod',
    ], [
      'some_module',
    ]),
  ], $get_lists());
  $this->assertFalse($module_handler->hasImplementations('unknown_hook'));
  $this->assertEquals([
    'some_hook' => new ImplementationList([
      TestHookClass::class . '::someMethod',
    ], [
      'some_module',
    ]),
    'unknown_hook' => new ImplementationList([], []),
  ], $get_lists());
  $this->assertFalse($module_handler->hasImplementations('empty_hook'));
  $this->assertEquals([
    'some_hook' => new ImplementationList([
      TestHookClass::class . '::someMethod',
    ], [
      'some_module',
    ]),
    'unknown_hook' => new ImplementationList([], []),
    'empty_hook' => new ImplementationList([], []),
  ], $get_lists());
}