public function testExceedingHighwaterMarkReturnsFalseButStillBuffers() { $b = new BufferStream(5); $this->assertEquals(3, $b->write('hi ')); $this->assertFalse($b->write('hello')); $this->assertEquals('hi hello', (string) $b); $this->assertEquals(4, $b->write('test')); }
public function testBeginsDroppingWhenSizeExceeded() { $stream = new BufferStream(); $drop = new DroppingStream($stream, 5); $this->assertEquals(3, $drop->write('hel')); $this->assertEquals(2, $drop->write('lo')); $this->assertEquals(5, $drop->getSize()); $this->assertEquals('hello', $drop->read(5)); $this->assertEquals(0, $drop->getSize()); $drop->write('12345678910'); $this->assertEquals(5, $stream->getSize()); $this->assertEquals(5, $drop->getSize()); $this->assertEquals('12345', (string) $drop); $this->assertEquals(0, $drop->getSize()); $drop->write('hello'); $this->assertSame(0, $drop->write('test')); }
private function pump($length) { if ($this->source) { do { $data = call_user_func($this->source, $length); if ($data === false || $data === null) { $this->source = null; return; } $this->buffer->write($data); $length -= strlen($data); } while ($length > 0); } }