Run dmd internal unittests on CIs

Author: wilzbach

posix.mak

@@ -21,6 +21,7 @@ clean:
 	$(RM) tags
 
 test:
+	$(QUIET)$(MAKE) -C src -f posix.mak test
 	$(QUIET)$(MAKE) -C test -f Makefile
 
 html:

src/ddmd/mars.d

@@ -1692,6 +1692,7 @@ Language changes listed by -transition=id:
  * Returns:
  *   Return code of the application
  */
+version(unittest) {} else
 int main()
 {
     import core.memory;

src/posix.mak

@@ -344,7 +344,7 @@ DEPS = $(patsubst %.o,%.deps,$(DMD_OBJS) $(GLUE_OBJS) $(BACK_OBJS))
 
 all: dmd
 
-auto-tester-build: dmd checkwhitespace $G/dmd_frontend
+auto-tester-build: dmd checkwhitespace $G/dmd_frontend test
 .PHONY: auto-tester-build
 
 toolchain-info:
@@ -392,6 +392,11 @@ $G/dmd: $(DMD_SRCS) $(ROOT_SRCS) $G/newdelete.o $G/backend.a $G/lexer.a $(STRING
 	CC=$(HOST_CXX) $(HOST_DMD_RUN) -of$@ $(MODEL_FLAG) -vtls -J$G -J../res -L-lstdc++ $(DFLAGS) $(filter-out $(STRING_IMPORT_FILES) $(HOST_DMD_PATH) $(LEXER_ROOT),$^)
 endif
 
+$G/dmd-unittest: $(DMD_SRCS) $(ROOT_SRCS) $G/newdelete.o $G/lexer.a $(G_GLUE_OBJS) $(G_OBJS) $(STRING_IMPORT_FILES) $(HOST_DMD_PATH)
+	CC=$(HOST_CXX) $(HOST_DMD_RUN) -of$@ $(MODEL_FLAG) -vtls -J$G -J../res -L-lstdc++ $(DFLAGS) -unittest -main $(filter-out $(STRING_IMPORT_FILES) $(HOST_DMD_PATH),$^)
+
+test: $G/dmd-unittest
+	$<
 
 clean:
 	rm -R $(GENERATED)

travis.sh

@@ -61,6 +61,7 @@ test() {
 
 # test dmd
 test_dmd() {
+    make -j$N -C src -f posix.mak MODEL=$MODEL test
     # test fewer compiler argument permutations for PRs to reduce CI load
     if [ "$TRAVIS_PULL_REQUEST" == "false" ] && [ "$TRAVIS_OS_NAME" == "linux"  ]; then
         make -j$N -C test MODEL=$MODEL # all ARGS by default