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Subject: Re: [PATCH bpf-next v3 5/5] selftests/bpf: Add test for "bpftool
 feature" command
To:     Michal Rostecki <mrostecki@opensuse.org>, bpf@vger.kernel.org
Cc:     Alexei Starovoitov <ast@kernel.org>,
        Martin KaFai Lau <kafai@fb.com>,
        Song Liu <songliubraving@fb.com>, Yonghong Song <yhs@fb.com>,
        Andrii Nakryiko <andriin@fb.com>,
        Quentin Monnet <quentin.monnet@netronome.com>,
        Jakub Kicinski <kuba@kernel.org>, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org, Shuah Khan <shuah@kernel.org>,
        "David S. Miller" <davem@davemloft.net>,
        Jesper Dangaard Brouer <hawk@kernel.org>,
        John Fastabend <john.fastabend@gmail.com>,
        linux-kselftest@vger.kernel.org
References: <20200225194446.20651-1-mrostecki@opensuse.org>
 <20200225194446.20651-6-mrostecki@opensuse.org>
From:   Daniel Borkmann <daniel@iogearbox.net>
Message-ID: <d0c40cd0-f9db-c6cb-5b46-79145311050d@iogearbox.net>
Date:   Wed, 26 Feb 2020 16:34:06 +0100
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On 2/25/20 8:44 PM, Michal Rostecki wrote:
> Add Python module with tests for "bpftool feature" command, which mainly
> wheck whether the "full" option is working properly.

nit, typo: wheck

> 
> Signed-off-by: Michal Rostecki <mrostecki@opensuse.org>

Ptal, when running the test I'm getting the following error:

root@tank:~/bpf-next/tools/testing/selftests/bpf# ./test_bpftool.sh
test_feature_dev_json (test_bpftool.TestBpftool) ... ERROR
test_feature_kernel (test_bpftool.TestBpftool) ... ERROR
test_feature_kernel_full (test_bpftool.TestBpftool) ... ERROR
test_feature_kernel_full_vs_not_full (test_bpftool.TestBpftool) ... ERROR
test_feature_macros (test_bpftool.TestBpftool) ... ERROR

======================================================================
ERROR: test_feature_dev_json (test_bpftool.TestBpftool)
----------------------------------------------------------------------
Traceback (most recent call last):
   File "/root/bpf-next/tools/testing/selftests/bpf/test_bpftool.py", line 58, in wrapper
     return f(*args, iface, **kwargs)
   File "/root/bpf-next/tools/testing/selftests/bpf/test_bpftool.py", line 83, in test_feature_dev_json
     res = bpftool_json(["feature", "probe", "dev", iface])
   File "/root/bpf-next/tools/testing/selftests/bpf/test_bpftool.py", line 43, in bpftool_json
     res = _bpftool(args)
   File "/root/bpf-next/tools/testing/selftests/bpf/test_bpftool.py", line 34, in _bpftool
     res = subprocess.run(_args, capture_output=True)
   File "/usr/lib/python3.6/subprocess.py", line 423, in run
     with Popen(*popenargs, **kwargs) as process:
TypeError: __init__() got an unexpected keyword argument 'capture_output'

======================================================================
ERROR: test_feature_kernel (test_bpftool.TestBpftool)
----------------------------------------------------------------------
Traceback (most recent call last):
   File "/root/bpf-next/tools/testing/selftests/bpf/test_bpftool.py", line 94, in test_feature_kernel
     bpftool_json(["feature", "probe", "kernel"]),
   File "/root/bpf-next/tools/testing/selftests/bpf/test_bpftool.py", line 43, in bpftool_json
     res = _bpftool(args)
   File "/root/bpf-next/tools/testing/selftests/bpf/test_bpftool.py", line 34, in _bpftool
     res = subprocess.run(_args, capture_output=True)
   File "/usr/lib/python3.6/subprocess.py", line 423, in run
     with Popen(*popenargs, **kwargs) as process:
TypeError: __init__() got an unexpected keyword argument 'capture_output'

======================================================================
ERROR: test_feature_kernel_full (test_bpftool.TestBpftool)
----------------------------------------------------------------------
Traceback (most recent call last):
   File "/root/bpf-next/tools/testing/selftests/bpf/test_bpftool.py", line 122, in test_feature_kernel_full
     bpftool_json(["feature", "probe", "kernel", "full"]),
   File "/root/bpf-next/tools/testing/selftests/bpf/test_bpftool.py", line 43, in bpftool_json
     res = _bpftool(args)
   File "/root/bpf-next/tools/testing/selftests/bpf/test_bpftool.py", line 34, in _bpftool
     res = subprocess.run(_args, capture_output=True)
   File "/usr/lib/python3.6/subprocess.py", line 423, in run
     with Popen(*popenargs, **kwargs) as process:
TypeError: __init__() got an unexpected keyword argument 'capture_output'

======================================================================
ERROR: test_feature_kernel_full_vs_not_full (test_bpftool.TestBpftool)
----------------------------------------------------------------------
Traceback (most recent call last):
   File "/root/bpf-next/tools/testing/selftests/bpf/test_bpftool.py", line 147, in test_feature_kernel_full_vs_not_full
     full_res = bpftool_json(["feature", "probe", "full"])
   File "/root/bpf-next/tools/testing/selftests/bpf/test_bpftool.py", line 43, in bpftool_json
     res = _bpftool(args)
   File "/root/bpf-next/tools/testing/selftests/bpf/test_bpftool.py", line 34, in _bpftool
     res = subprocess.run(_args, capture_output=True)
   File "/usr/lib/python3.6/subprocess.py", line 423, in run
     with Popen(*popenargs, **kwargs) as process:
TypeError: __init__() got an unexpected keyword argument 'capture_output'

======================================================================
ERROR: test_feature_macros (test_bpftool.TestBpftool)
----------------------------------------------------------------------
Traceback (most recent call last):
   File "/root/bpf-next/tools/testing/selftests/bpf/test_bpftool.py", line 177, in test_feature_macros
     res = bpftool(["feature", "probe", "macros"])
   File "/root/bpf-next/tools/testing/selftests/bpf/test_bpftool.py", line 39, in bpftool
     return _bpftool(args, json=False).decode("utf-8")
   File "/root/bpf-next/tools/testing/selftests/bpf/test_bpftool.py", line 34, in _bpftool
     res = subprocess.run(_args, capture_output=True)
   File "/usr/lib/python3.6/subprocess.py", line 423, in run
     with Popen(*popenargs, **kwargs) as process:
TypeError: __init__() got an unexpected keyword argument 'capture_output'

----------------------------------------------------------------------
Ran 5 tests in 0.001s

FAILED (errors=5)