class PostgresqlDateSqlTest

class PostgresqlDateSqlTest extends UnitTestCase {
  
  /**
   * The mocked database service.
   *
   * @var \Drupal\Core\Database\Connection
   */
  protected $database;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->database = $this->prophesize(Connection::class)
      ->reveal();
  }
  
  /**
   * Tests the getDateField method.
   *
   * @covers ::getDateField
   */
  public function testGetDateField() : void {
    $date_sql = new PostgresqlDateSql($this->database);
    $expected = "TO_TIMESTAMP(foo.field, 'YYYY-MM-DD\"T\"HH24:MI:SS')";
    $this->assertEquals($expected, $date_sql->getDateField('foo.field', TRUE));
    $expected = 'TO_TIMESTAMP(foo.field)';
    $this->assertEquals($expected, $date_sql->getDateField('foo.field', FALSE));
  }
  
  /**
   * Tests date formatting replacement.
   *
   * @covers ::getDateFormat
   *
   * @dataProvider providerTestGetDateFormat
   */
  public function testGetDateFormat($field, $format, $expected_format) : void {
    $date_sql = new PostgresqlDateSql($this->database);
    $this->assertEquals("TO_CHAR({$field}, '{$expected_format}')", $date_sql->getDateFormat($field, $format));
  }
  
  /**
   * Provider for date formatting test.
   */
  public static function providerTestGetDateFormat() {
    return [
      [
        'foo.field',
        'Y-y-M-m',
        'YYYY-YY-Mon-MM',
      ],
      [
        'bar.field',
        'n-F D d l',
        'MM-Month Dy DD Day',
      ],
      [
        'baz.bar_field',
        'j/W/H-h i s A',
        'DD/IW/HH24-HH12 MI SS AM',
      ],
    ];
  }
  
  /**
   * Tests timezone offset formatting.
   *
   * @covers ::setFieldTimezoneOffset
   */
  public function testSetFieldTimezoneOffset() : void {
    $date_sql = new PostgresqlDateSql($this->database);
    $field = 'foobar.field';
    $date_sql->setFieldTimezoneOffset($field, 42);
    $this->assertEquals("(foobar.field + INTERVAL '42 SECONDS')", $field);
  }
  
  /**
   * Tests setting the database offset.
   *
   * @covers ::setTimezoneOffset
   */
  public function testSetTimezoneOffset() : void {
    $database = $this->prophesize(Connection::class);
    $database->query("SET TIME ZONE INTERVAL '42' HOUR TO MINUTE")
      ->shouldBeCalledTimes(1);
    $date_sql = new PostgresqlDateSql($database->reveal());
    $date_sql->setTimezoneOffset(42);
  }

}