class FieldUninstallValidatorTest

class FieldUninstallValidatorTest extends UnitTestCase {
  
  /**
   * @var \Drupal\field\FieldUninstallValidator|\PHPUnit\Framework\MockObject\MockObject
   */
  protected $fieldUninstallValidator;
  
  /**
   * The mock field type plugin manager.
   *
   * @var \Drupal\Core\Field\FieldTypePluginManagerInterface|\PHPUnit\Framework\MockObject\MockObject
   */
  protected $fieldTypePluginManager;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->fieldUninstallValidator = $this->getMockBuilder('Drupal\\field\\FieldUninstallValidator')
      ->disableOriginalConstructor()
      ->onlyMethods([
      'getFieldStoragesByModule',
      'getFieldTypeLabel',
    ])
      ->getMock();
    $this->fieldUninstallValidator
      ->setStringTranslation($this->getStringTranslationStub());
  }
  
  /**
   * @covers ::validate
   */
  public function testValidateNoStorages() : void {
    $this->fieldUninstallValidator
      ->expects($this->once())
      ->method('getFieldStoragesByModule')
      ->willReturn([]);
    $module = $this->randomMachineName();
    $expected = [];
    $reasons = $this->fieldUninstallValidator
      ->validate($module);
    $this->assertEquals($expected, $reasons);
  }
  
  /**
   * @covers ::validate
   */
  public function testValidateDeleted() : void {
    $field_storage = $this->getMockBuilder('Drupal\\field\\Entity\\FieldStorageConfig')
      ->disableOriginalConstructor()
      ->getMock();
    $field_storage->expects($this->once())
      ->method('isDeleted')
      ->willReturn(TRUE);
    $this->fieldUninstallValidator
      ->expects($this->once())
      ->method('getFieldStoragesByModule')
      ->willReturn([
      $field_storage,
    ]);
    $module = $this->randomMachineName();
    $expected = [
      'Fields pending deletion',
    ];
    $reasons = $this->fieldUninstallValidator
      ->validate($module);
    $this->assertEquals($expected, $reasons);
  }
  
  /**
   * @covers ::validate
   */
  public function testValidateNoDeleted() : void {
    $field_storage = $this->getMockBuilder('Drupal\\field\\Entity\\FieldStorageConfig')
      ->disableOriginalConstructor()
      ->getMock();
    $field_storage->expects($this->once())
      ->method('isDeleted')
      ->willReturn(FALSE);
    $field_type = $this->randomMachineName();
    $field_storage->expects($this->once())
      ->method('getType')
      ->willReturn($field_type);
    $field_name = $this->randomMachineName();
    $field_storage->expects($this->once())
      ->method('getLabel')
      ->willReturn($field_name);
    $this->fieldUninstallValidator
      ->expects($this->once())
      ->method('getFieldStoragesByModule')
      ->willReturn([
      $field_storage,
    ]);
    $field_type_label = $this->randomMachineName();
    $this->fieldUninstallValidator
      ->expects($this->once())
      ->method('getFieldTypeLabel')
      ->willReturn($field_type_label);
    $module = $this->randomMachineName();
    $expected = [
      "The <em class=\"placeholder\">{$field_type_label}</em> field type is used in the following field: {$field_name}",
    ];
    $reasons = $this->fieldUninstallValidator
      ->validate($module);
    $this->assertEquals($expected, $reasons);
  }

}