class BookUninstallValidatorTest

class BookUninstallValidatorTest extends UnitTestCase {
  
  /**
   * @var \Drupal\book\BookUninstallValidator|\PHPUnit\Framework\MockObject\MockObject
   */
  protected $bookUninstallValidator;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->bookUninstallValidator = $this->getMockBuilder('Drupal\\book\\BookUninstallValidator')
      ->disableOriginalConstructor()
      ->onlyMethods([
      'hasBookOutlines',
      'hasBookNodes',
    ])
      ->getMock();
    $this->bookUninstallValidator
      ->setStringTranslation($this->getStringTranslationStub());
  }
  
  /**
   * @covers ::validate
   */
  public function testValidateNotBook() {
    $this->bookUninstallValidator
      ->expects($this->never())
      ->method('hasBookOutlines');
    $this->bookUninstallValidator
      ->expects($this->never())
      ->method('hasBookNodes');
    $module = 'not_book';
    $expected = [];
    $reasons = $this->bookUninstallValidator
      ->validate($module);
    $this->assertEquals($expected, $reasons);
  }
  
  /**
   * @covers ::validate
   */
  public function testValidateEntityQueryWithoutResults() {
    $this->bookUninstallValidator
      ->expects($this->once())
      ->method('hasBookOutlines')
      ->willReturn(FALSE);
    $this->bookUninstallValidator
      ->expects($this->once())
      ->method('hasBookNodes')
      ->willReturn(FALSE);
    $module = 'book';
    $expected = [];
    $reasons = $this->bookUninstallValidator
      ->validate($module);
    $this->assertEquals($expected, $reasons);
  }
  
  /**
   * @covers ::validate
   */
  public function testValidateEntityQueryWithResults() {
    $this->bookUninstallValidator
      ->expects($this->once())
      ->method('hasBookOutlines')
      ->willReturn(FALSE);
    $this->bookUninstallValidator
      ->expects($this->once())
      ->method('hasBookNodes')
      ->willReturn(TRUE);
    $module = 'book';
    $expected = [
      'To uninstall Book, delete all content that has the Book content type',
    ];
    $reasons = $this->bookUninstallValidator
      ->validate($module);
    $this->assertEquals($expected, $reasons);
  }
  
  /**
   * @covers ::validate
   */
  public function testValidateOutlineStorage() {
    $this->bookUninstallValidator
      ->expects($this->once())
      ->method('hasBookOutlines')
      ->willReturn(TRUE);
    $this->bookUninstallValidator
      ->expects($this->never())
      ->method('hasBookNodes');
    $module = 'book';
    $expected = [
      'To uninstall Book, delete all content that is part of a book',
    ];
    $reasons = $this->bookUninstallValidator
      ->validate($module);
    $this->assertEquals($expected, $reasons);
  }

}