bind: extend funcs testcase
bind: extend funcs testcase

Change-Id: I1b3ddb93c41022ea255c00b61a0e371a120ac613

go-python/gopy,go-python/gopy,go-python/gopy-gen,ericsnowcurrently/gopython-gopy,lifei/gopy,kellrott/gopy,lifei/gopy,go-python/gopy-gen,ericsnowcurrently/gopython-gopy,kellrott/gopy