Re: [Qemu-devel] [PATCH] Acceptance tests: add Linux initrd checking test

[Cleber Rosa <crosa@redhat.com>]

On 10/18/18 12:44 PM, Philippe Mathieu-Daudé wrote:
> On 18/10/2018 18:20, Wainer dos Santos Moschetta wrote:
>> QEMU used to exits with a not accurate error message when
>> an initrd >= 2GB was passed. That was fixed on patch:
>>
>> 	commit f3839fda5771596152b75dd1e1a6d050e6e6e380
>> 	Author: Li Zhijian <lizhijian@cn.fujitsu.com>
>> 	Date:   Thu Sep 13 18:07:13 2018 +0800
>>
>>     	change get_image_size return type to int64_t
>>
>> This change adds a regression test for that fix. It starts
>> QEMU with a 2GB dummy initrd, and check it evaluates the file
>> size correctly and prints accurate message.
>>
>> Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
>> ---
>>  tests/acceptance/linux_initrd.py | 47 ++++++++++++++++++++++++++++++++
>>  1 file changed, 47 insertions(+)
>>  create mode 100644 tests/acceptance/linux_initrd.py
>>
>> diff --git a/tests/acceptance/linux_initrd.py b/tests/acceptance/linux_initrd.py
>> new file mode 100644
>> index 0000000000..7d9e5862cd
>> --- /dev/null
>> +++ b/tests/acceptance/linux_initrd.py
>> @@ -0,0 +1,47 @@
>> +# Linux initrd acceptance test.
>> +#
>> +# Copyright (c) 2018 Red Hat, Inc.
>> +#
>> +# Author:
>> +#  Wainer dos Santos Moschetta <wainersm@redhat.com>
>> +#
>> +# This work is licensed under the terms of the GNU GPL, version 2 or
>> +# later.  See the COPYING file in the top-level directory.
>> +
>> +import tempfile
>> +
>> +from avocado_qemu import Test
>> +from avocado.utils.process import run
>> +
>> +
>> +class LinuxInitrd(Test):
>> +    """
>> +    Checks QEMU evaluates correctly the initrd file passed as -initrd option.
>> +
>> +    :avocado: enable
>> +    :avocado: tags=x86_64
> 
> I'll let Cleber check if he wants we use 'tags=arch:x86_64' here.
> 

Yes, I have no objections.  Like I said elsewhere, most good standards
are born like this.

- Cleber.

> Regardless:
> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> 
> 
>> +    """
>> +
>> +    timeout = 60
>> +
>> +    def test_with_2GB_file_should_exit_error_msg(self):
>> +        """
>> +        Pretends to boot QEMU with an initrd file with size of 2GB
>> +        and expect it exits with error message.
>> +        Regression test for bug fixed on commit f3839fda5771596152.
>> +        """
>> +        kernel_url = ('https://mirrors.kernel.org/fedora/releases/28/'
>> +                      'Everything/x86_64/os/images/pxeboot/vmlinuz')
>> +        kernel_hash = '238e083e114c48200f80d889f7e32eeb2793e02a'
>> +        kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
>> +
>> +        with tempfile.NamedTemporaryFile() as initrd:
>> +            initrd.seek(2048*(1024**2) -1)
>> +            initrd.write(b'\0')
>> +            initrd.flush()
>> +            cmd = "%s -kernel %s -initrd %s" % (self.qemu_bin, kernel_path,
>> +                                                initrd.name)
>> +            res = run(cmd, ignore_status=True)
>> +            self.assertNotEqual(res.exit_status, 0)
>> +            expected_msg = r'.*initrd is too large.*max: \d+, need \d+.*'
>> +            self.assertRegex(res.stderr_text, expected_msg)
>>

-- 
Cleber Rosa
[ Sr Software Engineer - Virtualization Team - Red Hat ]
[ Avocado Test Framework - avocado-framework.github.io ]
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