public function testReadBuffering() { $str_len_8 = 'abcdefgh'; $str_len_4 = 'abcd'; // This is a write/read with no read buffer. $future = new ExecFuture('cat'); $future->write($str_len_8); do { $future->isReady(); list($read) = $future->read(); if (strlen($read)) { break; } } while (true); // We expect to get the entire string back in the read. $this->assertEqual($str_len_8, $read); $future->resolve(); // This is a write/read with a read buffer. $future = new ExecFuture('cat'); $future->write($str_len_8); // Set the read buffer size. $future->setReadBufferSize(4); do { $future->isReady(); list($read) = $future->read(); if (strlen($read)) { break; } } while (true); // We expect to get the entire string back in the read. $this->assertEqual($str_len_4, $read); $future->resolve(); }