public function testReadNextReturnNullIfThereIsNoData()
{
$httpResponse = $this->getMock('GuzzleHttp\\Message\\ResponseInterface');
$this->iterator->expects($this->once())->method('valid')->willReturn(true);
$this->iterator->expects($this->once())->method('current')->willReturn($httpResponse);
$httpResponse->expects($this->once())->method('json')->willReturn([]);
$this->assertNull($this->invokeMethod($this->instance, 'readNext'));
}
/**
* {@inheritdoc}
*/
public function rewind()
{
$this->iterator->rewind();
parent::rewind();
}