Re: [PATCH v2] Kernel selftests: TPM2: upgrade TPM2 tests from Python 2 to Python 3

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On Tue, Jun 23, 2020 at 12:46:18AM +0300, Jarkko Sakkinen wrote:
> On Thu, Jun 18, 2020 at 04:15:02PM +0800, Pengfei Xu wrote:
> > Python 2 is no longer supported by the Python upstream project, so
> > upgrade TPM2 tests to Python 3.
> > 
> > Signed-off-by: Pengfei Xu <pengfei.xu@xxxxxxxxx>
> 
> Use "selftests: tpm: <short summary>".
> 
> > ---
> >  tools/testing/selftests/tpm2/test_smoke.sh |  4 +-
> >  tools/testing/selftests/tpm2/test_space.sh |  2 +-
> >  tools/testing/selftests/tpm2/tpm2.py       | 68 ++++++++++++++--------
> >  tools/testing/selftests/tpm2/tpm2_tests.py | 24 +++++---
> >  4 files changed, 61 insertions(+), 37 deletions(-)
> > 
> > diff --git a/tools/testing/selftests/tpm2/test_smoke.sh b/tools/testing/selftests/tpm2/test_smoke.sh
> > index 663062701d5a..d05467f6d258 100755
> > --- a/tools/testing/selftests/tpm2/test_smoke.sh
> > +++ b/tools/testing/selftests/tpm2/test_smoke.sh
> > @@ -6,8 +6,8 @@ ksft_skip=4
> >  
> >  [ -f /dev/tpm0 ] || exit $ksft_skip
> >  
> > -python -m unittest -v tpm2_tests.SmokeTest
> > -python -m unittest -v tpm2_tests.AsyncTest
> > +python3 -m unittest -v tpm2_tests.SmokeTest
> > +python3 -m unittest -v tpm2_tests.AsyncTest
> >  
> >  CLEAR_CMD=$(which tpm2_clear)
> >  if [ -n $CLEAR_CMD ]; then
> > diff --git a/tools/testing/selftests/tpm2/test_space.sh b/tools/testing/selftests/tpm2/test_space.sh
> > index 36c9d030a1c6..151c64e8ee9f 100755
> > --- a/tools/testing/selftests/tpm2/test_space.sh
> > +++ b/tools/testing/selftests/tpm2/test_space.sh
> > @@ -6,4 +6,4 @@ ksft_skip=4
> >  
> >  [ -f /dev/tpmrm0 ] || exit $ksft_skip
> >  
> > -python -m unittest -v tpm2_tests.SpaceTest
> > +python3 -m unittest -v tpm2_tests.SpaceTest
> > diff --git a/tools/testing/selftests/tpm2/tpm2.py b/tools/testing/selftests/tpm2/tpm2.py
> > index d0fcb66a88a6..b0ccc1499c53 100644
> > --- a/tools/testing/selftests/tpm2/tpm2.py
> > +++ b/tools/testing/selftests/tpm2/tpm2.py
> > @@ -247,14 +247,18 @@ class ProtocolError(Exception):
> >  class AuthCommand(object):
> >      """TPMS_AUTH_COMMAND"""
> >  
> > -    def __init__(self, session_handle=TPM2_RS_PW, nonce='', session_attributes=0,
> > -                 hmac=''):
> > +    def __init__(self, session_handle=TPM2_RS_PW, nonce=''.encode(),
> > +                 session_attributes=0, hmac=''.encode()):
> > +        if not isinstance(nonce, bytes):
> > +            nonce = nonce.encode()
> > +        if not isinstance(hmac, bytes):
> > +            hmac = hmac.encode()
> 
> This looks messy. Please, instead
> 
>     def __init__(self, session_handle=TPM2_RS_PW, nonce=bytes(),
>                  session_attributes=0, hmac=bytes()):
>          self.session_handle = session_handle
>          self.nonce = nonce
>          self.session_attributes = session_attributes
> 
> Applies also to other places.

I.e. use '.encode()' in the call site.

/Jarkko



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