On 09/13/2017 01:10 PM, Petri Latvala wrote:
> On Wed, Sep 13, 2017 at 12:24:18PM +0300, Abdiel Janulgue wrote:
>> v3: Don't pipe the output of intel_l3_parity, parse it's output
>>     directly. (Petri)
>>
>> v2: Check support before executing test.
>>     Skip test only if intel_l3_parity tool tells us to skip. (Petri)
>>
>> bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101650
>> Cc: Petri Latvala <[email protected]>
>> Signed-off-by: Abdiel Janulgue <[email protected]>
>> ---
>>  tests/tools_test.c | 64 
>> ++++++++++++++++++++++++++++++------------------------
>>  1 file changed, 36 insertions(+), 28 deletions(-)
>>
>> diff --git a/tests/tools_test.c b/tests/tools_test.c
>> index 1baf60b..572d5f4 100644
>> --- a/tests/tools_test.c
>> +++ b/tests/tools_test.c
>> @@ -27,23 +27,26 @@
>>  #include <sys/stat.h>
>>  #include <fcntl.h>
>>  
>> +struct line_check {
>> +    bool found;
>> +    const char *substr;
>> +};
>> +
>>  /**
>> - * Parse the r-value of a [cmd] string.
>> + * Our igt_log_buffer_inspect handler. Checks the output of the
>> + * intel_l3_parity tool and returns true if a specific substring
>> + * is found.
> 
> 
> The return value is for the log_buffer_inspect interface, isn't it?
> This rather sets line_check::found to true.
> 
> 
>>   */
>> -static bool check_cmd_return_value(const char *s, void *data)
>> +static bool check_cmd_return_value(const char *line, void *data)
>>  {
>> -    int *val = data;
>> -    char *cmd, *found;
>> -    const char *delim = "[cmd]";
>> -    const int delim_len = strlen(delim);
>> +    struct line_check *check = data;
>>  
>> -    if (!(cmd = strstr(s, delim)))
>> +    if (!strstr(line, check->substr)) {
>> +            check->found = false;
>>              return false;
>> +    }
>>  
>> -    found = cmd + delim_len + 1;
>> -    igt_assert(delim_len + strlen(found) < strlen(cmd));
>> -
>> -    *val = atoi(found);
>> +    check->found = true;
>>      return true;
>>  }
>>  
>> @@ -57,37 +60,42 @@ igt_main
>>              igt_system_cmd(exec_return,
>>                             "../tools/intel_l3_parity -r 0 -b 0 "
>>                             "-s 0 -e");
>> -            igt_assert(exec_return == IGT_EXIT_SUCCESS);
>> +            igt_skip_on_f(exec_return == IGT_EXIT_SKIP,
>> +                          "intel_l3_parity not supported\n");
>> +            igt_assert_eq(exec_return, IGT_EXIT_SUCCESS);
>>  
>> -            igt_system_cmd(exec_return,
>> -                           "../tools/intel_l3_parity -l | "
>> -                           "grep -c 'Row 0, Bank 0, Subbank 0 "
>> -                           "is disabled'");
>> +            igt_system_cmd(exec_return, "../tools/intel_l3_parity -l");
>>              if (exec_return == IGT_EXIT_SUCCESS) {
>> -                    int val = -1;
>> +                    struct line_check line;
>> +                    line.substr = "Row 0, Bank 0, Subbank 0 is disabled";
>>                      igt_log_buffer_inspect(check_cmd_return_value,
>> -                                           &val);
>> -                    igt_assert(val == 1);
>> -            } else {
>> -                    igt_fail(IGT_EXIT_FAILURE);
>> +                                           &line);
>> +                    igt_assert_eq(line.found, true);
>>              }
>>  
>>              igt_system_cmd(exec_return,
>>                             "../tools/intel_l3_parity -r 0 -b 0 "
>>                             "-s 0 -e");
>> -            igt_assert(exec_return == IGT_EXIT_SUCCESS);
>> +            igt_skip_on_f(exec_return == IGT_EXIT_SKIP,
>> +                          "intel_l3_parity not supported\n");
>> +            igt_assert_eq(exec_return, IGT_EXIT_SUCCESS);
>>  
>> -            /* Check that we can clear remaps */
>> +            /* Check that we can clear remaps:
>> +             * In the original shell script, the output of intel_l3_parity 
>> -l
>> +             * was piped thru wc -l to check if the tool would at least
>> +             * return a line. Just watch for one of the expected output
>> +             * string as an alternative.
> 
> 
> This is an excellent change.
> 
> 
>> +             * ("is disabled" unique only to intel_l3_parity.c:dumpit())
>> +             */
>>              igt_system_cmd(exec_return,
>>                             "../tools/intel_l3_parity -l | "
>>                             "wc -l");
> 
> ...but you still left the piping to wc -l here. :P
> 

Oops. Fix coming, thanks for the review!
> 
> 
> 
> With those fixed, this is
> 
> Reviewed-by: Petri Latvala <[email protected]>
> 
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