class PostgresqlDateSqlTest

class PostgresqlDateSqlTest extends UnitTestCase {
    
    /**
     * The mocked database service.
     *
     * @var \Drupal\Core\Database\Connection
     */
    protected $database;
    
    /**
     * {@inheritdoc}
     */
    public function setUp() {
        parent::setUp();
        $this->database = $this->prophesize(Connection::class)
            ->reveal();
    }
    
    /**
     * Tests the getDateField method.
     *
     * @covers ::getDateField
     */
    public function testGetDateField() {
        $date_sql = new PostgresqlDateSql($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) {
        $date_sql = new PostgresqlDateSql($this->database);
        $this->assertEquals("TO_CHAR({$field}, '{$expected_format}')", $date_sql->getDateFormat($field, $format));
    }
    
    /**
     * Provider for date formatting test.
     */
    public 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() {
        $date_sql = new PostgresqlDateSql($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() {
        $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);
    }

}