Just-run-the-unittests
Hi! Suppose I have a small .d script that has a main. Is there any simple way to just run the unit tests without running main at all? I thought -main switch was intended for this, but apparently it works only if there's no main defined at all, otherwise, it issues a double main definition error. I could place main into a separate module but its really awkward to create 2 files for a small script.
Re: Just-run-the-unittests
On Sunday, 16 March 2014 at 07:59:33 UTC, Sergei Nosov wrote:
Hi!
Suppose I have a small .d script that has a main. Is there any
simple way to just run the unit tests without running main at
all?
Here's the first thing that came to mind:
If you never want to both unit tests and regular main:
code begins
import std.stdio;
version(unittest) void main(){}
else
void main() { writeln(Hello world!); }
unittest { writeln(Hello unit testing world!); }
code ends
If you sometimes want to have your normal main with unit testing
you can replace version(unittest) with version(nopmain) or
some other custom version identifier and compile with
-version=nopmain when you want the dummy main.
Re: Just-run-the-unittests
On Sunday, 16 March 2014 at 08:22:04 UTC, safety0ff wrote:
On Sunday, 16 March 2014 at 07:59:33 UTC, Sergei Nosov wrote:
Hi!
Suppose I have a small .d script that has a main. Is there any
simple way to just run the unit tests without running main at
all?
Here's the first thing that came to mind:
If you never want to both unit tests and regular main:
code begins
import std.stdio;
version(unittest) void main(){}
else
void main() { writeln(Hello world!); }
unittest { writeln(Hello unit testing world!); }
code ends
If you sometimes want to have your normal main with unit
testing you can replace version(unittest) with
version(nopmain) or some other custom version identifier and
compile with -version=nopmain when you want the dummy main.
Thx! That's better, but I think -main switch could be made to
work like 'add or replace main by stub' instead of just 'add'. I
don't think it'll hurt anybody, what do you think?
Re: Just-run-the-unittests
On 3/16/14, Sergei Nosov sergei.no...@gmail.com wrote: Thx! That's better, but I think -main switch could be made to work like 'add or replace main by stub' instead of just 'add'. I don't think it'll hurt anybody, what do you think? It can't work, because main could be stored in a pre-built object or static library that's passed to DMD.
Re: Just-run-the-unittests
On Sunday, 16 March 2014 at 10:15:00 UTC, Andrej Mitrovic wrote: It can't work, because main could be stored in a pre-built object or static library that's passed to DMD. Hmm I really should consider making a DIP for a deferred CTFE block. Could really come in handy for a situation like this. In the format of if -main specified use e.g. -version=D_Main to remove the call to _Dmain symbol. Removes the whole linker issue altogether.
Re: Just-run-the-unittests
On Sunday, 16 March 2014 at 12:57:04 UTC, Rikki Cattermole wrote: On Sunday, 16 March 2014 at 10:15:00 UTC, Andrej Mitrovic wrote: It can't work, because main could be stored in a pre-built object or static library that's passed to DMD. Hmm I really should consider making a DIP for a deferred CTFE block. Could really come in handy for a situation like this. In the format of if -main specified use e.g. -version=D_Main to remove the call to _Dmain symbol. Removes the whole linker issue altogether. Linker will still complain about duplicate symbols. This issue can't be solved within existing C-compatible object file toolchain.
Re: Just-run-the-unittests
On Sunday, 16 March 2014 at 20:22:15 UTC, Dicebot wrote: On Sunday, 16 March 2014 at 12:57:04 UTC, Rikki Cattermole wrote: On Sunday, 16 March 2014 at 10:15:00 UTC, Andrej Mitrovic wrote: It can't work, because main could be stored in a pre-built object or static library that's passed to DMD. Hmm I really should consider making a DIP for a deferred CTFE block. Could really come in handy for a situation like this. In the format of if -main specified use e.g. -version=D_Main to remove the call to _Dmain symbol. Removes the whole linker issue altogether. Linker will still complain about duplicate symbols. This issue can't be solved within existing C-compatible object file toolchain. I was inferring that no stub _Dmain would be added. Since it would no longer be called.
