public function testAddWarning()
{
$data = new DataTable();
$warning = new Warning(new ReasonType(ReasonType::INVALID_QUERY), "invalid query");
$data->addWarning($warning);
$warnings = $data->getWarnings();
$this->assertSame(1, $data->getNumberOfWarnings(), "data must contain zero warnings");
$this->assertSame(1, count($warnings), "warnings array must contain 1 element");
$this->assertSame($warning, $warnings[0], "Returned warning must match input warning");
}
