public function testAlternativeStandardErrorOutput() { $buffer = fopen('php://memory', 'w+'); $multi_curl = new MultiCurl(); $multi_curl->verbose(true, $buffer); $multi_curl->addGet(Test::TEST_URL); $multi_curl->start(); rewind($buffer); $stderr = stream_get_contents($buffer); fclose($buffer); $this->assertNotEmpty($stderr); }