public function testSelectEmptyJson()
{
$result = new EasyRdf_Sparql_Result(readFixture('sparql_select_empty.json'), 'application/sparql-results+json');
$this->assertSame(3, $result->numFields());
$this->assertSame(array('s', 'p', 'o'), $result->getFields());
$this->assertCount(0, $result);
}
public static function csvRenderer(Sparql_Result $solutions)
{
static::setContentType('application/csv');
$fields = $solutions->getFields();
$buffer = fopen('php://temp', 'r+');
// add headers
fputcsv($buffer, $fields);
foreach ($solutions as $solution) {
$rec = array();
foreach ($fields as $key => $field) {
$rec[] = isset($solution->{$field}) ? $solution->{$field} : '';
}
fputcsv($buffer, $rec);
}
rewind($buffer);
$csv = stream_get_contents($buffer);
fclose($buffer);
return $csv;
}
