class MysqlDateSqlTest

class MysqlDateSqlTest extends UnitTestCase {
  
  /**
   * The mocked database service.
   *
   * @var \Drupal\Core\Database\Connection
   */
  protected $database;
  
  /**
   * {@inheritdoc}
   */
  public function setUp() : void {
    parent::setUp();
    $this->database = $this->prophesize(Connection::class)
      ->reveal();
  }
  
  /**
   * Tests the getDateField method.
   *
   * @covers ::getDateField
   */
  public function testGetDateField() {
    $date_sql = new MysqlDateSql($this->database);
    $expected = 'foo.field';
    $this->assertEquals($expected, $date_sql->getDateField('foo.field', TRUE));
    $expected = "DATE_ADD('19700101', INTERVAL foo.field SECOND)";
    $this->assertEquals($expected, $date_sql->getDateField('foo.field', FALSE));
  }
  
  /**
   * Tests date formatting replacement.
   *
   * @covers ::getDateFormat
   *
   * @dataProvider providerTestGetDateFormat
   */
  public function testGetDateFormat($field, $format, $expected_format) {
    $date_sql = new MysqlDateSql($this->database);
    $this->assertEquals("DATE_FORMAT({$field}, '{$expected_format}')", $date_sql->getDateFormat($field, $format));
  }
  
  /**
   * Provider for date formatting test.
   */
  public function providerTestGetDateFormat() {
    return [
      [
        'foo.field',
        'Y-y-M-m',
        '%Y-%y-%b-%m',
      ],
      [
        'bar.field',
        'n-F D d l',
        '%c-%M %a %d %W',
      ],
      [
        'baz.bar_field',
        'j/W/H-h i s A',
        '%e/%v/%H-%h %i %s %p',
      ],
    ];
  }
  
  /**
   * Tests timezone offset formatting.
   *
   * @covers ::setFieldTimezoneOffset
   */
  public function testSetFieldTimezoneOffset() {
    $date_sql = new MysqlDateSql($this->database);
    $field = 'foobar.field';
    $date_sql->setFieldTimezoneOffset($field, 42);
    $this->assertEquals("(foobar.field + INTERVAL 42 SECOND)", $field);
  }
  
  /**
   * Tests setting the database offset.
   *
   * @covers ::setTimezoneOffset
   */
  public function testSetTimezoneOffset() {
    $database = $this->prophesize(Connection::class);
    $database->query("SET @@session.time_zone = '42'")
      ->shouldBeCalledTimes(1);
    $date_sql = new MysqlDateSql($database->reveal());
    $date_sql->setTimezoneOffset(42);
  }

}