detecting if no exception was thrown

[Aryeh M. Friedman]

I am writting a uit tsting framework and need to know is there any way to
detect if some expression throws a exception or not (I know how to handle
the case of it throwing but not the expected one). Here is my test macro so
far:

#define TEST_ASSERT_THR OW(expr,x) \
try { expr; } catch(x) {test_pass(0);} catch(...) {test_fail(0);} ;

What I want is a test_fail(0) if no exception was thrown by expr.

--Aryeh

[Clark S. Cox III]

Re: detecting if no exception was thrown

On 2005-02-18 23:17:55 -0500, "Aryeh M. Friedman"
<aryeh@m-net.arbornet.or g> said:
[color=blue]
> I am writting a uit tsting framework and need to know is there any way
> to detect if some expression throws a exception or not (I know how to
> handle the case of it throwing but not the expected one). Here is my
> test macro so far:
>
> #define TEST_ASSERT_THR OW(expr,x) \
> try { expr; } catch(x) {test_pass(0);} catch(...) {test_fail(0);} ;
>
> What I want is a test_fail(0) if no exception was thrown by expr.[/color]

How about:

#define TEST_ASSERT_THR OW(expr,x) \
{ \
bool caught_exceptio n = false; \
try { expr; } catch(x) {caught_excepti on = true;} \
if(caught_excep tion) \
test_pass(0); \
else \
test_fail(0); \
};

--
Clark S. Cox, III
clarkcox3@gmail .com

[Kurt Stutsman]

Re: detecting if no exception was thrown

Clark S. Cox III wrote:[color=blue]
> On 2005-02-18 23:17:55 -0500, "Aryeh M. Friedman"
> <aryeh@m-net.arbornet.or g> said:
>[color=green]
>> I am writting a uit tsting framework and need to know is there any way
>> to detect if some expression throws a exception or not (I know how to
>> handle the case of it throwing but not the expected one). Here is my
>> test macro so far:
>>
>> #define TEST_ASSERT_THR OW(expr,x) \
>> try { expr; } catch(x) {test_pass(0);} catch(...)
>> {test_fail(0);} ;
>>
>> What I want is a test_fail(0) if no exception was thrown by expr.[/color]
>
>
> How about:
>
> #define TEST_ASSERT_THR OW(expr,x) \
> { \
> bool caught_exceptio n = false; \
> try { expr; } catch(x) {caught_excepti on = true;} \
> if(caught_excep tion) \
> test_pass(0); \
> else \
> test_fail(0); \
> };
>[/color]

Or if you know that test_pass(0) doesn't throw x:

try {
expr;
test_pass(0);
} catch(x) {
test_fail(0);
}

[Aryeh M. Friedman]

Re: detecting if no exception was thrown


"Kurt Stutsman" <kstutsman@NOSP AM.sbcglobal.ne t> wrote in message
news:SNzRd.1350 $DC6.1236@newss vr14.news.prodi gy.com...[color=blue]
> Clark S. Cox III wrote:[color=green]
>> On 2005-02-18 23:17:55 -0500, "Aryeh M. Friedman"
>> <aryeh@m-net.arbornet.or g> said:
>>[color=darkred]
>>> I am writting a uit tsting framework and need to know is there any way
>>> to detect if some expression throws a exception or not (I know how to
>>> handle the case of it throwing but not the expected one). Here is my
>>> test macro so far:
>>>
>>> #define TEST_ASSERT_THR OW(expr,x) \
>>> try { expr; } catch(x) {test_pass(0);} catch(...)
>>> {test_fail(0);} ;
>>>
>>> What I want is a test_fail(0) if no exception was thrown by expr.[/color]
>>
>>
>> How about:
>>
>> #define TEST_ASSERT_THR OW(expr,x) \
>> { \
>> bool caught_exceptio n = false; \
>> try { expr; } catch(x) {caught_excepti on = true;} \
>> if(caught_excep tion) \
>> test_pass(0); \
>> else \
>> test_fail(0); \
>> };
>>[/color]
>
> Or if you know that test_pass(0) doesn't throw x:
>
> try {
> expr;
> test_pass(0);
> } catch(x) {
> test_fail(0);
> }[/color]

Actually the test only passes if it throws x

--Aryeh

[Rolf Magnus]

Re: detecting if no exception was thrown

Aryeh M. Friedman wrote:
[color=blue][color=green]
>> Or if you know that test_pass(0) doesn't throw x:
>>
>> try {
>> expr;
>> test_pass(0);
>> } catch(x) {
>> test_fail(0);
>> }[/color]
>
> Actually the test only passes if it throws x[/color]

Then just exchange test_pass and test_fail.