tests/Travis: run unittests on x86, too

.travis.yml

@@ -17,10 +17,12 @@ install:
     - sudo apt-get install gcc-arm-none-eabi
     - sudo apt-get install gcc-msp430
     - sudo apt-get install pcregrep libpcre3
+    - sudo apt-get install qemu-system-x86 python3
 
 script:
     - ./dist/tools/compile_test/compile_test.py
-    - make -C ./tests/unittests term
+    - make -C ./tests/unittests test BOARD=native
+    - make -C ./tests/unittests test BOARD=qemu-i386
     - ./dist/tools/licenses/check.sh master
 
 notifications:

tests/unittests/Makefile

@@ -40,3 +40,9 @@ ifeq (, $(UNIT_TESTS))
 else
     CFLAGS += -DTEST_SUITES='$(subst $() $(),$(charCOMMA),$(UNIT_TESTS:tests-%=%))'
 endif
+
+test: SHELL=bash
+test:
+	@exec 5>&1 && \
+	LOG=$$("$(MAKE)" -s term | tee >(cat - >&5)) && \
+	grep 'OK ([1-9][0-9]* tests)' <<< $${LOG} > /dev/null

tests/unittests/main.c

@@ -31,11 +31,6 @@ int main(void)
 #endif
     TESTS_END();
 
-#if defined (BOARD_NATIVE) && !defined (OUTPUT)
-    void _exit(int);
-    _exit(TestRunnerHadErrors);
-#endif
-
     lpm_set(LPM_POWERDOWN);
     return 0;
 }