fixed unit tests were failed (refs #230)
fixed unit tests were failed (refs #230)

openpne/OpenPNE3,upsilon/travis-test,openpne/OpenPNE3,isaosano/OpenPNE3,balibali/KakiageSNS,nishizoe/OpenPNE3,ShinichiU/OpenPNE3,kashiwasan/symfony-advanced,tejima/testravis,tejima/OP3PKG,C-nakajima/OpenPNE3,upsilon/OpenPNE3,nise-nabe/ppcon-sns,ShinichiU/AuthFramework,tejima/testravis,tejima/OP3PKG,kashiwasan/symfony-advanced,openpne/OpenPNE3,balibali/KakiageSNS,ShinichiU/OpenPNE3,tejima/testravis,ShinichiU/OpenPNE3_with_webInstaller,upsilon/travis-test,ShinichiU/AuthFramework,isaosano/OpenPNE3,nishizoe/OpenPNE3,isaosano/OpenPNE3,C-nakajima/OpenPNE3,isaosano/OpenPNE3,ShinichiU/OpenPNE3,upsilon/OpenPNE3,ShinichiU/OpenPNE3_with_webInstaller,ShinichiU/OpenPNE3,C-nakajima/OpenPNE3,nise-nabe/ppcon-sns,ShinichiU/AuthFramework,C-nakajima/OpenPNE3,openpne/OpenPNE3