• Leandro Lucarella (19/19) Jan 27 2008 Hi! I'm trying to do some unittest on a C bindings. First, I found I can...
• Jarrett Billingsley (18/30) Jan 27 2008 A unittest block is a function body. Anything that's illegal in a funct...

Leandro Lucarella <llucax gmail.com> writes:

Hi! I'm trying to do some unittest on a C bindings. First, I found I can't
use import inside a unittest block (why?). Should I polute the module with
symbols I only want for the unittest? :S

Second, and whorst, I can't specify extern (C) in the unittest. I need to
use some functions with C linking, but I can't create them inside the
unittest. Using extern (C): or extern (C) {} gives me a parse error and
extern (C) void f() {} parses OK but the extern (C) is ignored and
compiler complains about trying to use a pointer to a D linked function
where it expects a C linked function.

Is this a bug? A feature?

TIA.

PS: Using gdc 0.25 (GCC 4.1.3) debian package.

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"Jarrett Billingsley" <kb3ctd2 yahoo.com> writes:

"Leandro Lucarella" <llucax gmail.com> wrote in message 
news:20080127154946.GA27400 homero.springfield.home...
 Hi! I'm trying to do some unittest on a C bindings. First, I found I can't
 use import inside a unittest block (why?). Should I polute the module with
 symbols I only want for the unittest? :S

 Second, and whorst, I can't specify extern (C) in the unittest. I need to
 use some functions with C linking, but I can't create them inside the
 unittest. Using extern (C): or extern (C) {} gives me a parse error and
 extern (C) void f() {} parses OK but the extern (C) is ignored and
 compiler complains about trying to use a pointer to a D linked function
 where it expects a C linked function.

 Is this a bug? A feature?

 TIA.

 PS: Using gdc 0.25 (GCC 4.1.3) debian package.

A unittest block is a function body.  Anything that's illegal in a function 
body is also illegal in a unittest block.  I would kind of like imports to 
be legal in functions but that's another story.

Basically there's no built-in solution to this.  Tango does something like:

debug(UnitTest)
{
    import my.stuff;
    extern(C) void some_func();

    unittest
    {
        some_func();
        my.stuff.fweep();
    }
}

And when running unittests they'll also define a UnitTest debug symbol.  Not 
built-in but it works.