public function testCalculatesSizeAndReturnsNullForUnknown()
{
$s = $this->getMockBuilder('GuzzleHttp\\Stream\\StreamInterface')->setMethods(['getSize', 'isReadable'])->getMockForAbstractClass();
$s->expects($this->once())->method('getSize')->will($this->returnValue(null));
$s->expects($this->once())->method('isReadable')->will($this->returnValue(true));
$b = new MultipartBody([], [new PostFile('foo', $s, 'foo.php')]);
$this->assertNull($b->getSize());
}
