dualnum is an optional LuaJIT feature (LJ_DUALNUM), why we don't have a 
separate flag for

the test that will disable test when feature is not available?



On 15.08.2024 16:11, Sergey Bronnikov via Tarantool-patches wrote:
>
> Hi, Sergey
>
> thanks for the patch!
>
> see my comments below
>
> On 14.08.2024 16:55, Sergey Kaplun wrote:
>> This patch moves the aforementioned test from the <misc> to the <lang/>
>> directory, includes it in <index>, and names subtests.
>
> Add a reason for this and couple of words about updated formatting in 
> the test.
>
>
>> Part of tarantool/tarantool#9398
>> ---
>>   test/LuaJIT-tests/{misc => lang}/dualnum.lua | 24 +++++++++-----------
>>   test/LuaJIT-tests/lang/index                 |  1 +
>>   2 files changed, 12 insertions(+), 13 deletions(-)
>>   rename test/LuaJIT-tests/{misc => lang}/dualnum.lua (57%)
>>
>> diff --git a/test/LuaJIT-tests/misc/dualnum.lua b/test/LuaJIT-tests/lang/dualnum.lua
>> similarity index 57%
>> rename from test/LuaJIT-tests/misc/dualnum.lua
>> rename to test/LuaJIT-tests/lang/dualnum.lua
>> index 5f1288c8..688920eb 100644
>> --- a/test/LuaJIT-tests/misc/dualnum.lua
>> +++ b/test/LuaJIT-tests/lang/dualnum.lua
>> @@ -1,34 +1,32 @@
>> +-- Test LuaJIT Dualnum mode behaviour.
>>   
>> --- Positive overflow
>> -do
>> +do --- Positive overflow.
>>     local x = 0
>> -  for i=2147483446,2147483647,2 do x = x + 1 end
>> +  for _ = 2147483446, 2147483647, 2 do x = x + 1 end
>>     assert(x == 101)
>>   end
>>   
>> --- Negative overflow
>> -do
>> +do --- Negative overflow.
>>     local x = 0
>> -  for i=-2147483447,-2147483648,-2 do x = x + 1 end
>> +  for _ = -2147483447, -2147483648, -2 do x = x + 1 end
>>     assert(x == 101)
>>   end
>>   
>> --- SLOAD with number to integer conversion.
>> -do
>> +do --- SLOAD with number to integer conversion.
>>     local k = 1
>>     local a, b, c = 1/k, 20/k, 1/k
>> -  for i=1,20 do
>> -    for j=a,b,c do end
>> +  for i = 1, 20 do
>> +    for j = a, b, c do end
>>     end
>>   end
>>   
>> -do
>> +do --- min/max correctness.
>>     local function fmin(a, b)
>> -    for i=1,100 do a = math.min(a, b) end
>> +    for _ = 1, 100 do a = math.min(a, b) end
>>       return a
>>     end
>>     local function fmax(a, b)
>> -    for i=1,100 do a = math.max(a, b) end
>> +    for _ = 1, 100 do a = math.max(a, b) end
>>       return a
>>     end
>>     assert(fmin(1, 3) == 1)
>> diff --git a/test/LuaJIT-tests/lang/index b/test/LuaJIT-tests/lang/index
>> index 4d9feafd..b0e7f073 100644
>> --- a/test/LuaJIT-tests/lang/index
>> +++ b/test/LuaJIT-tests/lang/index
>> @@ -6,6 +6,7 @@ catch_wrap.lua
>>   compare.lua
>>   compare_nan.lua
>>   constant
>> +dualnum.lua
>>   for.lua
>>   length.lua
>>   lightud.lua