setInstalledExtensions example

$extensions = $test_extension_list->getList();
    $this->assertCount(1, $extensions);
    $this->assertEquals('test_name', $extensions['test_name']->getName());
  }

  /** * @covers ::getExtensionInfo * @covers ::getAllInstalledInfo */
  public function testGetExtensionInfo() {
    $test_extension_list = $this->setupTestExtensionList();
    $test_extension_list->setInstalledExtensions(['test_name']);

    $info = $test_extension_list->getExtensionInfo('test_name');
    $this->assertEquals([
      'type' => 'test_extension',
      'core' => '8.x',
      'name' => 'test name',
      'mtime' => 123456789,
    ], $info);
  }

  /** * @covers ::getAllAvailableInfo */