Re: [OE-core] [pseudo][PATCH] test: Add missing test-statx test case

["Philip Lorenz" <philip@bithub.de>]

On 11.08.21 19:19, Mike Crowe wrote:
> On Wednesday 11 August 2021 at 18:41:32 +0200, Philip Lorenz wrote:
>> Adding this test case was erroneously omitted in
>> 7c722296879906fe093e1e7c4b7537e150d492cd.
>>
>> Signed-off-by: Philip Lorenz <philip@bithub.de>
>> ---
>>   test/test-statx.c  | 20 ++++++++++++++++++++
>>   test/test-statx.sh |  6 ++++++
>>   2 files changed, 26 insertions(+)
>>   create mode 100644 test/test-statx.c
>>   create mode 100755 test/test-statx.sh
>>
>> diff --git a/test/test-statx.c b/test/test-statx.c
>> new file mode 100644
>> index 0000000..06d86af
>> --- /dev/null
>> +++ b/test/test-statx.c
>> @@ -0,0 +1,20 @@
>> +/*
>> + * Test that passing NULL to a parameter marked as nonnull works correctly
>> + * SPDX-License-Identifier: LGPL-2.1-only
>> + *
>> + */
>> +#define _GNU_SOURCE
>> +
>> +#include <sys/stat.h>
>> +#include <unistd.h>
>> +#include <fcntl.h>
>> +
>> +// Passing a null pointer is the test scenario
>> +#pragma GCC diagnostic ignored "-Wnonnull"
>> +
>> +int main(void) {
>> +    if (statx(0, NULL, 0, 0, NULL) != -1) {
>> +        return 1;
>> +    }
>> +    return 0;
>> +}
>> diff --git a/test/test-statx.sh b/test/test-statx.sh
>> new file mode 100755
>> index 0000000..77d0302
>> --- /dev/null
>> +++ b/test/test-statx.sh
>> @@ -0,0 +1,6 @@
>> +#!/bin/bash
>> +#
>> +# SPDX-License-Identifier: LGPL-2.1-only
>> +#
>> +
>> +exec ./test/test-statx
>> -- 
>> 2.32.0
> Applying this patch (along with <169A4FE272BB166C.28384@lists.openembedded.org>)
> makes all the tests pass for me. However, the run of test-statx.sh causes:
>
>   couldn't allocate absolute path for '(null)'.
>
> to be printed.

The test explicitly tests whether a NULL path does not segfault when 
compiled with newer GCC releases (which was fixed in 
7c722296879906fe093e1e7c4b7537e150d492cd). As such the observed error 
message is "intended". It may however make sense to special case NULL 
parameters in pseudo_root_path.

Philip