http://d.puremagic.com/issues/show_bug.cgi?id=4669

           Summary: Unit tests do not work in libraries compiled by dmd
                    with -lib
           Product: D
           Version: D1 & D2
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody@puremagic.com
        ReportedBy: mike.linford@gmail.com


--- Comment #0 from Mike Linford <mike.linford@gmail.com> 2010-08-17 08:55:13 PDT ---
The following unit test in mylib.d is not run:

mylib.d:

  1 module mylib;
  2
  3 void blah()
  4 {
  5 }
  6 unittest
  7 {
  8    assert(false);
  9 }
 10

test.d:

  1 module test;
  2
  3 import mylib;
  4
  5 void main()
  6 {
  7    blah();
  8 }
  9


Makefile:
  1 test : mylib.a test.d
  2    dmd -unittest test.d mylib.a
  3
  4 mylib.a : mylib.d
  5    dmd -unittest -lib mylib.d
  6
  7 clean :
  8    rm -f test mylib.a *.o
  9

However, it WILL be run if the project is compiled as follows:

dmd -unittest -c mylib.d
ar -rc mylib.a mylib.o
dmd -unittest test.d mylib.a

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Stephan Dilly <spam@extrawurst.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |wrong-code
                 CC|                            |spam@extrawurst.org


--- Comment #1 from Stephan Dilly <spam@extrawurst.org> 2010-08-17 10:13:09 PDT ---
i can confirm that unittests in static librarys build by dmd does not get triggered on windows too.

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Mike Parker <aldacron@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |simendsjo@gmail.com


--- Comment #2 from Mike Parker <aldacron@gmail.com> 2011-08-10 03:49:56 PDT ---
*** Issue 6464 has been marked as a duplicate of this issue. ***

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Andrej Mitrovic <andrej.mitrovich@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |andrej.mitrovich@gmail.com


--- Comment #3 from Andrej Mitrovic <andrej.mitrovich@gmail.com> 2011-09-15 07:10:13 PDT ---
This needs more attention imho. If unittests are first-class citizens in D then we shouldn't have to use workarounds just to trigger them in a library.

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PhilLavoie <maidenphil@hotmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |maidenphil@hotmail.com
         OS/Version|Linux                       |Windows


--- Comment #4 from PhilLavoie <maidenphil@hotmail.com> 2012-10-14 14:57:54 PDT ---
Yeah, I also confirm this issue on Windows. Since unit testing plays an important part in software construction, I hope that it gets the attention it deserves and gets fixed soon :). Love D 4 Life.

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--- Comment #5 from Andrej Mitrovic <andrej.mitrovich@gmail.com> 2013-01-13 09:02:59 PST ---
The cause is this code in 'FuncDeclaration::toObjFile':

if (multiobj && !isStaticDtorDeclaration() && !isStaticCtorDeclaration())
{   obj_append(this);
    return;
}

'multiobj' is true when -lib is passed, this unittest is then deferred to be generated later (and it *is* generated later), however it never seems to be run.

Anyway a qujick fix is to add a check for lib generation:

if (multiobj && !global.params.lib && !isStaticDtorDeclaration() &&
!isStaticCtorDeclaration()) { }

This makes the unittest work, but I don't know if that's a proper fix.

Any backend experts know more?

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Zhouxuan <pycerl@qq.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pycerl@qq.com


--- Comment #6 from Zhouxuan <pycerl@qq.com> 2013-10-05 22:15:19 PDT ---
I came across this issue too, it really deserves more attentions, how about the current status?

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